April 18, 2025

Unveiling the Sun: NASA’s Punch Mission, ISS Woes, and Mars Mysteries

Unveiling the Sun: NASA’s Punch Mission, ISS Woes, and Mars Mysteries
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Unveiling the Sun: NASA’s Punch Mission, ISS Woes, and Mars Mysteries

In this episode of Astronomy Daily, host Anna takes you on a thrilling expedition through the latest cosmic discoveries and pressing news from the space sector. From groundbreaking solar observations to the challenges facing the International Space Station, this episode is brimming with insights that will deepen your understanding of our universe.

Highlights:

- NASA's Punch Mission Captures First Images of the Sun: Join us as we explore the exciting achievements of NASA's Punch mission, which has successfully captured its first images of the Sun's outer atmosphere. Discover how these groundbreaking images are set to enhance our understanding of solar material and its journey through the solar system.

- Concerns for the International Space Station: Delve into the alarming warnings from NASA's safety panel regarding the increasing risks to the aging ISS as it nears its retirement date. We discuss the implications of these risks and what they mean for the future of this vital orbital laboratory.

- Curiosity Rover Solves Mars Carbonate Mystery: Travel to Mars with us as we uncover how the Curiosity rover may have solved the mystery of missing carbonates on the red planet. This discovery could reshape our understanding of Mars's early atmospheric conditions and its potential for past habitability.

- The Awakening Gleisberg Cycle: Learn about the intriguing research suggesting we are entering a period of heightened solar activity due to the Gleisberg cycle. This phenomenon could lead to more intense space weather in the coming decades, with both challenges and unexpected benefits for our technology-dependent world.

- Remarkable Lunar Satellite Rescue: Hear the incredible story of how Chinese scientists executed a complex rescue operation to save two lunar satellites stranded in the wrong orbit. This feat showcases remarkable engineering and determination in overcoming significant challenges.

For more cosmic updates, visit our website at astronomydaily.io (http://www.astronomydaily.io/) . Join our community on social media by searching for #AstroDailyPod on Facebook, X, YouTubeMusic, TikTok, and our new Instagram account! Don’t forget to subscribe to the podcast on Apple Podcasts, Spotify, iHeartRadio, or wherever you get your podcasts.

Thank you for tuning in. This is Anna signing off. Until next time, keep looking up and stay curious about the wonders of our universe.

00:00 - Welcome to Astronomy Daily

01:05 - NASA's Punch mission captures first images of the Sun

10:30 - Concerns for the International Space Station

17:00 - Curiosity rover solves Mars carbonate mystery

22:15 - The awakening Gleisberg cycle

27:30 - Remarkable lunar satellite rescue

✍️ Episode References

NASA Punch Mission

[NASA]( https://www.nasa.gov/ (https://www.nasa.gov/) )

International Space Station Safety Panel

[NASA ISS]( https://www.nasa.gov/mission_pages/station/main/index.html (https://www.nasa.gov/mission_pages/station/main/index.html) )

Curiosity Rover Findings

[NASA Mars]( https://mars.nasa.gov/msl/home/ (https://mars.nasa.gov/msl/home/) )

Gleisberg Cycle Research

[National Center for Atmospheric Research]( https://www.ncar.ucar.edu/ (https://www.ncar.ucar.edu/) )

Chinese Lunar Satellite Rescue

[China National Space Administration]( http://www.cnsa.gov.cn/ (http://www.cnsa.gov.cn/) )

Astronomy Daily

[Astronomy Daily]( http://www.astronomydaily.io/ (http://www.astronomydaily.io/) )


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Episode link: https://play.headliner.app/episode/26678608?utm_source=youtube

00:00 - Welcome to Astronomy Daily

01:05 - NASA’s Punch mission captures first images of the Sun

10:30 - Concerns for the International Space Station

17:00 - Curiosity rover solves Mars carbonate mystery

WEBVTT
Kind: captions
Language: en

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hello and welcome to Astronomy Daily


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your go-to source for the latest


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developments in space and astronomy news


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I'm Anna and I'm thrilled to have you


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join me for today's journey through the


00:00:10.080 --> 00:00:12.390
cosmos We've got a packed episode for


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you today covering some of the most


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exciting recent stories from across the


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space sector First up we'll explore


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NASA's Punch Mission which has just


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captured its first images of the sun's


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outer atmosphere


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These groundbreaking images are giving


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us new insights into how solar material


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flows through our solar system Then


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we'll dive into some concerning news


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about the International Space Station


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NASA's Safety Panel has issued warnings


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about increasing risks to the aging


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outpost as it approaches its projected


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retirement date We'll break down what


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these risks are and what they mean for


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the future of the ISS


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Next we'll travel to Mars where the


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Curiosity rover may have just solved a


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long-standing mystery about missing


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carbonates on the red planet This


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discovery could reshape our


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understanding of Mars' early atmospheric


00:01:00.280 --> 00:01:02.709
history We'll also look at fascinating


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research suggesting we're entering a


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period of more intense solar activity


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Scientists believe a hidden solar cycle


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is awakening which could lead to more


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extreme space weather over the next


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several decades Surprisingly this might


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not be entirely bad news Finally we'll


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hear the remarkable story of how Chinese


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scientists rescued a pair of lunar


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satellites that were stranded in the


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wrong orbit This complex rescue


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operation involved overcoming numerous


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challenges and executing a series of


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precise maneuvers to salvage the mission


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So strap in for a cosmic journey through


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these fascinating developments that are


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expanding our understanding of the


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universe around


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us In an exciting development for solar


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science NASA's PUCH mission has achieved


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a significant milestone by capturing its


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first images of the sun's outer


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atmosphere Punch which stands for


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polarimeter to unify the corona and


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heliosphere successfully completed its


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spacecraft commissioning phase just this


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week with the mission's instruments now


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beginning to reveal new details about


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how the solar atmosphere unfolds and


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streams through our solar system On


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April 14th the mission's narrow field


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imager and one of its three wide field


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imagers opened their instrument doors


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and captured what scientists call first


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light The initial images marking the


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beginning of the mission's scientific


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observations The remaining widefield


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imagers followed suit 2 days later


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opening their doors and starting to


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capture data as well These early images


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are quite fascinating The narrow field


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imager has captured starfields with the


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sun near the center of the image while


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the wide field imagers have provided


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expansive views of the surrounding space


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Scientists are now working to calibrate


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these observations to better reveal the


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subtle details of the sun's corona and


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the solar wind What makes Punch truly


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revolutionary is its constellation


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approach The mission consists of four


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small satellites working together one


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equipped with the narrow field imager


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and three carrying wide field images


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Once these satellites reach their


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targeted alignment their images will be


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stitched together to create a


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comprehensive view of the journey of the


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sun's corona and solar wind all the way


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to Earth The narrow field imager


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functions as a coronagraph blocking out


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the sun's bright light to better observe


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details in the corona Meanwhile the wide


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field imagers focus on the faint


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outermost portion of the solar corona


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and the solar wind itself This


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combination allows Punch to track solar


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material from its origin at the sun


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through interplanetary space During the


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calibration process scientists will be


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removing about 99% of the light from the


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corona enabling them to track the faint


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threads of solar material as they flow


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outward through space


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Similarly they'll remove star fields and


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background light from the wide field


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imager data to highlight the subtle flow


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of the solar wind toward Earth Punch


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will provide something we've never had


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before global three-dimensional


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observations of the inner solar system


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and the sun's outer atmosphere The


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mission aims to answer fundamental


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questions about how the sun's mass and


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energy become the solar wind That


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continuous stream of charged particles


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blowing outward from the sun in all


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directions Perhaps most significantly


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Punch will be the first mission to


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provide imagery of the solar wind and


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coronal mass ejections in polarized


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light This capability will give


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scientists new information about solar


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activity particularly about the


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formation and evolution of space weather


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events that can create storms of


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energetic particle radiation potentially


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endangering spacecraft and astronauts


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The mission is being led by Southwest


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Research Institute which operates the


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four spacecraft from its facilities in


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Boulder Colorado with management from


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NASA's Explorers Program office at


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Gddard Space Flight Center As the


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commissioning phase continues we can


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look forward to increasingly detailed


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views of our dynamic sun and its


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influence on the space environment


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around


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Earth Next up today some rather


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concerning news NASA's aerospace safety


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advisory panel has issued a stark


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warning about the International Space


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Station describing it as having entered


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the riskiest period of its existence


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During a recent public meeting panel


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member Rich Williams expressed serious


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concerns about increasing risks to the


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aging orbital laboratory as it


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approaches its planned retirement in


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2030 One of the panel's highest concerns


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involves ongoing leaks in a vestibule of


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the Russian Zvezda module known as


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PRK For several years now Russian and


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American experts have been investigating


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small cracks in this area with no


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resolution on their cause or how to best


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address them Officials from NASA and


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Roscosmos are scheduled to meet in


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Moscow later this month to update


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efforts to mitigate risks from these


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cracks In the meantime ISS managers have


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implemented procedures such as limiting


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repressurization of the vestibule which


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connects a docking port to the rest of


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the station The panel has also


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highlighted concerns about de-orbit


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plans for the ISS particularly in case


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of an emergency before the arrival of


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the US de-orbit vehicle being built by


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SpaceX According to Williams if the


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station needs to be de-orbited before


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this vehicle is delivered the risk to


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the public from ISS breakup debris will


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increase by orders of magnitude This is


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a sobering assessment of what could


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happen without proper de-orbit


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capabilities Adding to these worries are


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mounting issues with maintaining


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sufficient spare parts for life support


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systems and delays with cargo resupply


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vehicles


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Sierra Space's Dreamchaser vehicle has


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been delayed until at least late summer


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and Northrup Grumman had to scrap its


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planned NG22 Signis mission to the ISS


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due to damage the spacecraft sustained


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during shipping Perhaps most concerning


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the panel has pointed to what it


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describes as a large ISS budget


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shortfall underlying all these issues


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Williams stated that all of these risks


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are actually a derivative of this budget


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shortfall and collectively contribute to


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potential compromise of the low Earth


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orbit transition plan Though NASA


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allocated nearly $1 billion to ISS


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operations and maintenance in its fiscal


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year 2024 operating plan with an


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additional $1.63 billion for crew and


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cargo transportation The panel warns


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that these resources may be insufficient


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In its 2024 annual report the panel


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expressed grave concerns that if the


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necessary funds for the de-orbit vehicle


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and supporting launch infrastructure


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estimated at over $1 billion comes


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solely from the existing ISS budget this


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will unduly strain NASA's ability to


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safely perform normal and contingency


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ISS onorbit operations Williams


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emphasized that as programs near their


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final phases there's a temptation to


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assume fewer resources will be needed


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However he stressed that for the ISS it


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is critical to maintain adequate budget


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and resources until the vehicle is


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safely re-entered The panel concluded by


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acknowledging the demonstrated


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operational excellence of the ISS


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program while remaining deeply concerned


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about the increasing and cascading risk


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attending the program over the next


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several years With the station set to


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remain operational until 2030 managing


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these growing risks while maintaining


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safety standards will be a significant


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challenge for NASA and its international


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partners Let's head over to Mars now for


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an update Scientists may have finally


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solved one of the most enduring


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mysteries about Mars thanks to NASA's


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trusty Curiosity Rover For decades


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researchers have been puzzled by the


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apparent lack of carbonate minerals on


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the Martian surface which doesn't align


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with theories about the planet's early


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atmosphere According to our


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understanding Mars once had a much


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thicker carbon dioxide atmosphere that


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could have supported liquid water on its


00:09:02.680 --> 00:09:05.269
surface If that were true the


00:09:05.279 --> 00:09:07.750
interaction between this CO2 rich


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atmosphere and surface water should have


00:09:10.320 --> 00:09:13.030
created substantial carbonate deposits


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Yet these expected carbonates have been


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largely absent in observations from


00:09:18.120 --> 00:09:21.190
orbit That's where curiosity comes in


00:09:21.200 --> 00:09:23.110
The rover has been drilling deep beneath


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the Martian surface going down 1.2 to


00:09:26.720 --> 00:09:30.150
1.6 in into the rock These samples are


00:09:30.160 --> 00:09:31.750
then dropped into its chemical and


00:09:31.760 --> 00:09:34.389
minology instrument known as chimin


00:09:34.399 --> 00:09:37.269
which uses X-ray defraction to analyze


00:09:37.279 --> 00:09:40.070
the mineral composition of the rocks


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Thomas Bristo a research scientist at


00:09:42.640 --> 00:09:45.430
NASA as and co-author of the new study


00:09:45.440 --> 00:09:47.829
explains the significance Drilling


00:09:47.839 --> 00:09:49.590
through the layered Martian surface is


00:09:49.600 --> 00:09:51.670
like going through a history book just a


00:09:51.680 --> 00:09:53.430
few centimeters down gives us a good


00:09:53.440 --> 00:09:55.670
idea of the minerals that formed at or


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close to the surface around 3.5 billion


00:09:58.320 --> 00:10:01.430
years ago What Chimn discovered was


00:10:01.440 --> 00:10:03.829
surprising Carbonate minerals were


00:10:03.839 --> 00:10:06.310
indeed present in the subsurface rocks


00:10:06.320 --> 00:10:07.990
but they were effectively masked by


00:10:08.000 --> 00:10:10.230
other minerals particularly sulfates


00:10:10.240 --> 00:10:12.150
making them difficult to detect using


00:10:12.160 --> 00:10:15.269
satellite-based near infrared analysis


00:10:15.279 --> 00:10:16.710
This could explain why orbital


00:10:16.720 --> 00:10:18.630
observations have failed to identify


00:10:18.640 --> 00:10:20.310
widespread carbonates despite


00:10:20.320 --> 00:10:22.910
theoretical predictions that they should


00:10:22.920 --> 00:10:25.110
exist This finding has important


00:10:25.120 --> 00:10:26.710
implications for our understanding of


00:10:26.720 --> 00:10:29.590
Mars's atmospheric history The discovery


00:10:29.600 --> 00:10:31.670
suggests that carbonate deposits may be


00:10:31.680 --> 00:10:33.910
more common than previously thought but


00:10:33.920 --> 00:10:35.750
they're hidden beneath the surface or


00:10:35.760 --> 00:10:38.710
masked by other minerals However even


00:10:38.720 --> 00:10:40.949
with these newly discovered carbonates


00:10:40.959 --> 00:10:42.630
scientists believe the amount would


00:10:42.640 --> 00:10:44.550
still be only a fraction of what would


00:10:44.560 --> 00:10:46.630
be needed to account for the thick


00:10:46.640 --> 00:10:48.550
ancient atmosphere that Mars is believed


00:10:48.560 --> 00:10:50.710
to have had So where did the rest of


00:10:50.720 --> 00:10:53.350
Mars carbon dioxide go some portion


00:10:53.360 --> 00:10:54.550
might be stored in other yet


00:10:54.560 --> 00:10:57.110
undiscovered deposits but a significant


00:10:57.120 --> 00:10:59.030
amount was likely lost to space over


00:10:59.040 --> 00:11:01.350
billions of years as Mars protective


00:11:01.360 --> 00:11:03.590
magnetic field weakened and eventually


00:11:03.600 --> 00:11:06.630
disappeared Future missions and analyses


00:11:06.640 --> 00:11:08.870
focusing on other sulfatrich regions


00:11:08.880 --> 00:11:11.750
across Mars could confirm these findings


00:11:11.760 --> 00:11:13.750
and help fill in more pieces of the


00:11:13.760 --> 00:11:15.910
puzzle regarding how the red planet


00:11:15.920 --> 00:11:17.990
transformed from a potentially habitable


00:11:18.000 --> 00:11:20.389
world with a thick atmosphere and liquid


00:11:20.399 --> 00:11:22.470
water to the cold dry planet we observe


00:11:22.480 --> 00:11:25.030
today The Curiosity Rover part of NASA's


00:11:25.040 --> 00:11:27.430
Mars exploration program continues its


00:11:27.440 --> 00:11:29.269
scientific mission after landing on Mars


00:11:29.279 --> 00:11:32.470
in 2012 Built by NASA's Jet Propulsion


00:11:32.480 --> 00:11:34.389
Laboratory and managed by Caltech in


00:11:34.399 --> 00:11:36.949
Pasadena California this resilient


00:11:36.959 --> 00:11:38.870
explorer keeps providing valuable


00:11:38.880 --> 00:11:40.630
insights about Mars' history and


00:11:40.640 --> 00:11:42.870
evolution even after more than a decade


00:11:42.880 --> 00:11:45.470
of operation on the red planet


00:11:45.480 --> 00:11:48.630
surface Next on the agenda today it's


00:11:48.640 --> 00:11:50.630
back to the sun


00:11:50.640 --> 00:11:52.710
When we think about the sun's activity


00:11:52.720 --> 00:11:55.110
we typically picture the familiar


00:11:55.120 --> 00:11:57.910
11-year solar cycle with its predictable


00:11:57.920 --> 00:12:00.550
peaks and valleys of sunspot activity


00:12:00.560 --> 00:12:03.910
solar flares and coral mass ejections


00:12:03.920 --> 00:12:06.069
But fascinating new research from the


00:12:06.079 --> 00:12:08.150
National Center for Atmospheric Research


00:12:08.160 --> 00:12:10.790
in Boulder Colorado suggests there's a


00:12:10.800 --> 00:12:13.110
much longer cycle at play one that could


00:12:13.120 --> 00:12:14.949
dramatically impact our space weather


00:12:14.959 --> 00:12:17.350
over the coming decades Scientists have


00:12:17.360 --> 00:12:19.350
been reviewing satellite data measuring


00:12:19.360 --> 00:12:21.110
the density of energetic particles


00:12:21.120 --> 00:12:23.990
around Earth primarily charged protons


00:12:24.000 --> 00:12:26.069
from the sun trapped in Earth's magnetic


00:12:26.079 --> 00:12:28.470
field in regions known as the Van Allen


00:12:28.480 --> 00:12:30.710
radiation belts What they've discovered


00:12:30.720 --> 00:12:33.509
is evidence of the Glyceberg cycle a


00:12:33.519 --> 00:12:35.269
littleknown phenomenon first identified


00:12:35.279 --> 00:12:37.910
by German astronomer Wolf Gang Glyberg


00:12:37.920 --> 00:12:40.150
back in 1958


00:12:40.160 --> 00:12:42.310
This cycle operates over approximately


00:12:42.320 --> 00:12:44.710
100 years causing the intensity of


00:12:44.720 --> 00:12:46.710
individual solar cycles to eb and flow


00:12:46.720 --> 00:12:49.269
in a predictable pattern According to


00:12:49.279 --> 00:12:52.870
Calvin Adam lead author of the new study


00:12:52.880 --> 00:12:54.870
usually over four solar cycles the


00:12:54.880 --> 00:12:56.550
intensity of solar activity will


00:12:56.560 --> 00:12:58.629
increase Then it will reach its peak and


00:12:58.639 --> 00:13:01.030
then it will go down over another four


00:13:01.040 --> 00:13:03.590
solar cycles The satellite measurements


00:13:03.600 --> 00:13:05.350
suggest we've just hit the lowest point


00:13:05.360 --> 00:13:07.750
of this century long cycle meaning the


00:13:07.760 --> 00:13:09.509
next four solar cycles could bring


00:13:09.519 --> 00:13:11.110
significantly more intense solar


00:13:11.120 --> 00:13:13.190
activity than we've experienced in


00:13:13.200 --> 00:13:15.190
recent decades This has important


00:13:15.200 --> 00:13:16.949
implications for our technology


00:13:16.959 --> 00:13:20.069
dependent world More active solar cycles


00:13:20.079 --> 00:13:21.829
mean the sun's magnetic field becomes


00:13:21.839 --> 00:13:24.230
more tangled producing more sunspots and


00:13:24.240 --> 00:13:26.230
subsequent solar flares and coronal mass


00:13:26.240 --> 00:13:29.110
ejections These events can wreak havoc


00:13:29.120 --> 00:13:31.430
on our satellites power grids and


00:13:31.440 --> 00:13:34.310
communication systems However there's an


00:13:34.320 --> 00:13:36.629
intriguing twist to this story While


00:13:36.639 --> 00:13:38.710
more solar storms are expected the


00:13:38.720 --> 00:13:40.790
overall density of high energy protons


00:13:40.800 --> 00:13:43.910
surrounding Earth may actually decrease


00:13:43.920 --> 00:13:45.430
This seemingly counterintuitive


00:13:45.440 --> 00:13:47.190
relationship occurs because increased


00:13:47.200 --> 00:13:49.629
solar activity heats and expands Earth's


00:13:49.639 --> 00:13:51.750
atmosphere If you get more solar


00:13:51.760 --> 00:13:53.750
activity you'll get more heat and more


00:13:53.760 --> 00:13:56.629
energy into our atmosphere explains Adam


00:13:56.639 --> 00:13:58.310
If our atmosphere is getting more heat


00:13:58.320 --> 00:14:00.389
and energy it will expand As the


00:14:00.399 --> 00:14:02.389
atmosphere expands the protons will run


00:14:02.399 --> 00:14:03.829
into that expanded atmosphere and


00:14:03.839 --> 00:14:06.389
eventually drop out This could be good


00:14:06.399 --> 00:14:08.150
news for satellites and astronauts in


00:14:08.160 --> 00:14:10.470
Earth orbit With lower radiation levels


00:14:10.480 --> 00:14:12.310
in the space environment between solar


00:14:12.320 --> 00:14:15.110
storms electronic systems on satellites


00:14:15.120 --> 00:14:16.550
may experience less long-term


00:14:16.560 --> 00:14:18.150
degradation


00:14:18.160 --> 00:14:19.910
Astronauts on the International Space


00:14:19.920 --> 00:14:22.150
Station might also be exposed to lower


00:14:22.160 --> 00:14:24.710
cumulative radiation doses potentially


00:14:24.720 --> 00:14:26.870
reducing health risks associated with


00:14:26.880 --> 00:14:29.910
extended stays in space Unfortunately


00:14:29.920 --> 00:14:32.069
this doesn't mean all is well While the


00:14:32.079 --> 00:14:33.910
baseline radiation environment may


00:14:33.920 --> 00:14:36.389
improve we'll likely see more frequent


00:14:36.399 --> 00:14:38.389
and potentially more devastating solar


00:14:38.399 --> 00:14:41.189
storms These events can cause rapid


00:14:41.199 --> 00:14:43.670
atmospheric heating increasing drag on


00:14:43.680 --> 00:14:45.750
satellites in low Earth orbit and


00:14:45.760 --> 00:14:47.590
forcing them to use precious fuel to


00:14:47.600 --> 00:14:50.389
maintain their altitude A powerful solar


00:14:50.399 --> 00:14:52.710
storm last May demonstrated this risk


00:14:52.720 --> 00:14:54.629
causing what researchers called a mass


00:14:54.639 --> 00:14:56.870
migration of satellites as thousands of


00:14:56.880 --> 00:14:59.829
spacecraft lost altitude simultaneously


00:14:59.839 --> 00:15:01.750
During such chaotic periods the risk of


00:15:01.760 --> 00:15:03.110
orbital collisions increases


00:15:03.120 --> 00:15:05.030
dramatically as operators struggle to


00:15:05.040 --> 00:15:06.949
calculate and adjust orbits with their


00:15:06.959 --> 00:15:09.670
usual precision The worry that we are


00:15:09.680 --> 00:15:11.430
going toward more solar activity is


00:15:11.440 --> 00:15:13.750
definitely there notes Adam We have


00:15:13.760 --> 00:15:15.750
built an enormous amount of technology


00:15:15.760 --> 00:15:18.069
including satellites and power grids


00:15:18.079 --> 00:15:21.509
since the last GLberg maximum But it's


00:15:21.519 --> 00:15:24.150
not all bad Our paper suggests that the


00:15:24.160 --> 00:15:25.990
baseline environment when space weather


00:15:26.000 --> 00:15:28.670
is quiet should in fact be somewhat


00:15:28.680 --> 00:15:31.189
safer For our increasingly space


00:15:31.199 --> 00:15:33.430
dependent civilization this research


00:15:33.440 --> 00:15:35.670
provides both a warning and valuable


00:15:35.680 --> 00:15:37.990
preparation time Understanding these


00:15:38.000 --> 00:15:39.670
long-term solar patterns allows


00:15:39.680 --> 00:15:41.910
satellite operators power companies and


00:15:41.920 --> 00:15:44.470
space agencies to develop more robust


00:15:44.480 --> 00:15:46.310
systems and contingency plans for the


00:15:46.320 --> 00:15:48.910
more active solar weather that may lie


00:15:48.920 --> 00:15:52.150
ahead Finally today in a remarkable


00:15:52.160 --> 00:15:54.310
display of space mission recovery


00:15:54.320 --> 00:15:56.150
Chinese scientists have recently shared


00:15:56.160 --> 00:15:58.629
details of their extraordinary 4-month


00:15:58.639 --> 00:16:00.629
effort to rescue a pair of lunar


00:16:00.639 --> 00:16:02.310
satellites that were left stranded in


00:16:02.320 --> 00:16:05.590
the wrong orbit The DRA and DRO


00:16:05.600 --> 00:16:09.430
spacecraft weighing a combined 581 kg


00:16:09.440 --> 00:16:11.590
launched from China's Shiong spaceport


00:16:11.600 --> 00:16:14.550
on March 13th last year Their mission


00:16:14.560 --> 00:16:16.629
was to enter distant retrograde orbit


00:16:16.639 --> 00:16:18.710
around the moon and connect with the


00:16:18.720 --> 00:16:21.189
previously launched DROL satellite in


00:16:21.199 --> 00:16:23.430
low Earth orbit demonstrating inter


00:16:23.440 --> 00:16:25.829
satellite communication capabilities and


00:16:25.839 --> 00:16:27.430
proving the usefulness of distant


00:16:27.440 --> 00:16:29.749
retrograde orbits But the mission


00:16:29.759 --> 00:16:31.910
quickly encountered serious trouble when


00:16:31.920 --> 00:16:34.310
an anomaly with the Yanjing 1S upper


00:16:34.320 --> 00:16:36.710
stage left the satellites in a highly


00:16:36.720 --> 00:16:38.949
elliptical Earth orbit instead of their


00:16:38.959 --> 00:16:41.269
planned trajectory toward the moon


00:16:41.279 --> 00:16:43.189
Making matters worse the joined


00:16:43.199 --> 00:16:45.110
satellites were spinning at a dangerous


00:16:45.120 --> 00:16:47.829
rate of once every 1.8 seconds


00:16:47.839 --> 00:16:49.189
threatening both their structural


00:16:49.199 --> 00:16:51.670
integrity and their ability to operate


00:16:51.680 --> 00:16:54.790
essential systems The rescue team first


00:16:54.800 --> 00:16:57.269
had to tackle this rapid rotation Using


00:16:57.279 --> 00:16:59.829
DRO's attitude control engines they


00:16:59.839 --> 00:17:01.749
managed to eliminate the spin over a


00:17:01.759 --> 00:17:04.470
20-minute period But telemetry data then


00:17:04.480 --> 00:17:06.630
revealed another serious problem Both


00:17:06.640 --> 00:17:08.630
satellites had sustained damage to their


00:17:08.640 --> 00:17:12.069
solar arrays their crucial power source


00:17:12.079 --> 00:17:14.230
Working against the clock researchers


00:17:14.240 --> 00:17:16.150
from the Innovation Academy for Micro


00:17:16.160 --> 00:17:17.750
Satellites and Technology and


00:17:17.760 --> 00:17:20.150
Engineering Center for Space Utilization


00:17:20.160 --> 00:17:22.230
formulated an intricate rescue plan


00:17:22.240 --> 00:17:25.029
within just 40 hours The team faced


00:17:25.039 --> 00:17:27.270
numerous challenges including the


00:17:27.280 --> 00:17:29.909
complex orbital dynamics involving Earth


00:17:29.919 --> 00:17:32.230
Moon and Sun gravitational forces


00:17:32.240 --> 00:17:34.549
extremely limited fuel reserves and a


00:17:34.559 --> 00:17:36.950
rapidly closing window of opportunity


00:17:36.960 --> 00:17:38.789
The first critical engine burn occurred


00:17:38.799 --> 00:17:41.390
on March 18th lasting an impressive


00:17:41.400 --> 00:17:44.549
1,200 seconds and successfully raising


00:17:44.559 --> 00:17:46.789
the satellites apogee their farthest


00:17:46.799 --> 00:17:51.470
point from Earth from 134,000 to 240,000


00:17:51.480 --> 00:17:54.870
km Over the next 4 months the spacecraft


00:17:54.880 --> 00:17:57.830
executed four more orbital maneuvers


00:17:57.840 --> 00:18:00.150
utilized gravity assists and made


00:18:00.160 --> 00:18:03.430
additional trajectory corrections After


00:18:03.440 --> 00:18:06.190
traveling an astonishing 8.5 million


00:18:06.200 --> 00:18:08.390
kilometers the rescue operation


00:18:08.400 --> 00:18:11.270
concluded successfully on July 15th when


00:18:11.280 --> 00:18:12.789
both satellites reached their


00:18:12.799 --> 00:18:15.430
predetermined lunar orbits When the


00:18:15.440 --> 00:18:17.510
satellites finally separated on August


00:18:17.520 --> 00:18:20.230
28th and imaged each other the extent of


00:18:20.240 --> 00:18:23.029
the damage became clear Dro's solar


00:18:23.039 --> 00:18:26.390
panels were bent nearly 90° while Drob's


00:18:26.400 --> 00:18:29.669
arrays resembled broken wings Despite


00:18:29.679 --> 00:18:31.590
these challenges the satellites achieved


00:18:31.600 --> 00:18:33.430
their primary mission objective by


00:18:33.440 --> 00:18:35.190
establishing K-band microwave


00:18:35.200 --> 00:18:37.029
interatellite communication links with


00:18:37.039 --> 00:18:39.830
the DROL satellite creating a three


00:18:39.840 --> 00:18:41.430
satellite network spanning the Earth


00:18:41.440 --> 00:18:44.710
moon distance Wong Wenbin a researcher


00:18:44.720 --> 00:18:46.950
involved in the project highlighted the


00:18:46.960 --> 00:18:49.350
significance of this achievement For the


00:18:49.360 --> 00:18:51.270
first time internationally we have


00:18:51.280 --> 00:18:53.270
achieved the ability to use satellites


00:18:53.280 --> 00:18:55.430
to track other satellites instead of


00:18:55.440 --> 00:18:57.750
relying on ground stations In essence


00:18:57.760 --> 00:18:59.510
the ground station has been converted


00:18:59.520 --> 00:19:01.909
into a satellite and placed in low orbit


00:19:01.919 --> 00:19:03.669
This breakthrough paves the way for new


00:19:03.679 --> 00:19:05.430
technological advancements in future


00:19:05.440 --> 00:19:08.029
Earth moon space and deep space


00:19:08.039 --> 00:19:11.110
exploration The DRA satellite carries


00:19:11.120 --> 00:19:13.029
additional scientific equipment


00:19:13.039 --> 00:19:15.270
including an all sky detector to monitor


00:19:15.280 --> 00:19:18.310
gammaray bursts China plans to leverage


00:19:18.320 --> 00:19:20.150
these distant retrograde orbits for


00:19:20.160 --> 00:19:21.830
fundamental scientific research in


00:19:21.840 --> 00:19:23.590
fields including quantum mechanics and


00:19:23.600 --> 00:19:25.990
atomic physics taking advantage of the


00:19:26.000 --> 00:19:28.070
long-term orbital stability these unique


00:19:28.080 --> 00:19:30.150
trajectories provide This mission


00:19:30.160 --> 00:19:31.750
recovery represents one of the most


00:19:31.760 --> 00:19:33.669
challenging spacecraft rescue operations


00:19:33.679 --> 00:19:36.470
in recent years demonstrating remarkable


00:19:36.480 --> 00:19:38.230
ingenuity and perseverance from the


00:19:38.240 --> 00:19:40.110
Chinese space


00:19:40.120 --> 00:19:42.470
program Well that brings us to the end


00:19:42.480 --> 00:19:44.870
of today's journey through the cosmos


00:19:44.880 --> 00:19:46.710
What an incredible set of developments


00:19:46.720 --> 00:19:49.190
we've covered From NASA's Punch Mission


00:19:49.200 --> 00:19:50.789
capturing its first glimpses of the


00:19:50.799 --> 00:19:53.270
sun's outer atmosphere to the concerning


00:19:53.280 --> 00:19:55.110
safety issues facing our aging


00:19:55.120 --> 00:19:57.669
International Space Station We explored


00:19:57.679 --> 00:19:59.830
how Curiosity may have finally solved


00:19:59.840 --> 00:20:02.630
the long-standing Mars carbonate mystery


00:20:02.640 --> 00:20:04.390
learned about the awakening Glyceberg


00:20:04.400 --> 00:20:06.310
cycle that could change our space


00:20:06.320 --> 00:20:08.630
weather patterns for decades to come and


00:20:08.640 --> 00:20:10.549
marveled at the ingenious rescue of


00:20:10.559 --> 00:20:12.789
Chinese lunar spacecraft against


00:20:12.799 --> 00:20:15.590
seemingly impossible odds If you're


00:20:15.600 --> 00:20:17.990
hungry for more space and astronomy news


00:20:18.000 --> 00:20:19.870
visit our website at


00:20:19.880 --> 00:20:21.909
astronomydaily.io where our constantly


00:20:21.919 --> 00:20:23.750
updating news feed keeps you informed


00:20:23.760 --> 00:20:25.190
about the latest discoveries and


00:20:25.200 --> 00:20:27.510
developments across the cosmos While


00:20:27.520 --> 00:20:28.950
you're there you can also catch up on


00:20:28.960 --> 00:20:31.029
all our previous episodes Don't forget


00:20:31.039 --> 00:20:33.270
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00:20:33.280 --> 00:20:35.350
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00:20:42.320 --> 00:20:45.110
the wonders of space exploration Until


00:20:45.120 --> 00:20:47.029
next time keep looking up The universe


00:20:47.039 --> 00:20:50.590
has endless stories to tell Astronomy


00:20:50.600 --> 00:20:59.590
day Stories been told


00:20:59.600 --> 00:21:01.850
Stories to tell


00:21:01.860 --> 00:21:08.390
[Music]