Oct. 9, 2024

Starship's Fifth Flight Challenge, Mars Mission Rethink, and a Surprising Galaxy

Starship's Fifth Flight Challenge, Mars Mission Rethink, and a Surprising Galaxy

Astronomy Daily - The Podcast: S03E175
Welcome to Astronomy Daily, your go-to source for the latest in space and Astronomy news. I'm Anna, your host, and today we have a stellar lineup of cosmic stories that will take us from SpaceX's ambitious...

Season 3
Astronomy Daily - The Podcast: S03E175
Welcome to Astronomy Daily, your go-to source for the latest in space and Astronomy news. I'm Anna, your host, and today we have a stellar lineup of cosmic stories that will take us from SpaceX's ambitious starship developments to groundbreaking discoveries in the early universe.
Highlights:
- SpaceX Starship's Next Leap: SpaceX is preparing for the fifth test flight of its starship vehicle, aiming to catch the super heavy booster using the launch tower. This bold move could revolutionize booster recovery, pending FAA approval.
- FAA and SpaceX Licensing Controversy: The FAA's review of SpaceX's launch license has sparked debates, with Elon Musk criticizing delays. This highlights the tension between innovation and regulatory oversight in commercial spaceflight.
- Launch Delays and Anomalies: SpaceX's Falcon 9 investigation has postponed several launches, including NASA's Europa Clipper mission. Safety remains a priority as weather and technical challenges arise.
- Rebels 25S Galaxy Discovery: Astronomers have found a Milky Way-like galaxy from the universe's infancy, challenging existing models of galaxy formation and evolution.
- Mars Sample Return Mission Innovations: NASA explores cost-effective concepts for Mars sample return, with Rocket Lab proposing a mission at a fraction of current estimates, potentially revolutionizing our understanding of Mars.
- Space Rescue Capabilities: As more humans venture into space, experts call for dedicated rescue capabilities. The need for planning and investment is critical to ensure astronaut safety.
- Exoplanet Atmosphere Detection Breakthrough: Researchers use the James Webb Space Telescope to detect atmospheres on distant exoplanets, advancing our search for habitable worlds.
For more space news, visit our website at astronomydaily.io. There, you can sign up for our free Daily newsletter, catch up on all the latest space and Astronomy news with our constantly updating newsfeed, and listen to all our previous episodes.
Don't forget to follow us on social media. Just search for #AstroDailyPod on Facebook, X, YouTubeMusic, and TikTok.
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.
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WEBVTT

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Welcome stargazers and space enthusiasts to another exciting episode of

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Astronomy Daily. I'm your host, Anna, and I'm thrilled to

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bring you the latest and greatest developments from the Cosmos. Today,

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We've got a stellar lineup of space news to explore.

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We'll be blasting off with updates on SpaceX's Starship, the

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next giant leap in space exploration. We'll also dive into

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some fascinating discoveries that are challenging our understanding of the

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early universe, from Mars sample return missions to the search

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for distant exoplanets. We'll cover the cutting edge research that's

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expanding our cosmic horizons, and we'll even touch on the

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growing need for space rescue capabilities as more humans venture

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beyond Earth's atmosphere. So strap in and prepare for launch

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as we embark on this cosmic journey through the latest

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in space exploration and astronomy. Let's get started. SpaceX is

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gearing up for another exciting milestone in their Starship development program.

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The company is preparing for the fifth test flight the

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massive Starship vehicle, with a potential launch date as soon

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as October thirteenth. This upcoming mission is particularly noteworthy as

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it will mark the first attempt at catching the super

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heavy booster. For those who may not be familiar, Starship

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is SpaceX's next generation, fully reusable launch system, designed to

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carry both crew and cargo to Earth orbit, the Moon, Mars,

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and beyond. It consists of two main components, the Starship

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spacecraft itself and the super heavy booster that provides the

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initial thrust to get off the ground. In previous test flights,

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we've seen SpaceX make significant progress with Starship's capabilities. They've

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demonstrated controlled descents, multiple engine relights, and even a successful

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water landing. However, this fifth flight will push the envelope

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even further. The most ambitious aspect of this upcoming test

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is the planned attempt to catch the super heavy booster.

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Instead of landing on legs or a drone ship like

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Falcon nine boosters, SpaceX aims to use the launch tower

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itself to catch the massive first stage. This technique, if success,

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could greatly streamline the turnaround process for reusing boosters. While

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SpaceX has set an ambitious target date, it's important to

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note that this launch is still pending regulatory approval. The

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company will need to secure the necessary clearances from the

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Federal Aviation Administration before proceeding with the test flight. As

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with all developmental test flights, there's no guarantee of success. However,

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each attempt provides valuable data and lessons that SpaceX can

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use to refine and improve the Starship system. The company's

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iterative approach to testing has proven effective in the past,

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and space enthusiasts around the world will be eagerly watching

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to see what new milestones might be achieved with this

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fifth flight. The Federal Aviation Administration is currently reviewing SpaceX's

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launch license application for the upcoming Starship test flight. However,

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this process hasn't been without its share of controversy and confusion. Initially,

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the FAA had stated they didn't expect to make a

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determination on the license before late November. This timeline didn't

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align with SpaceX's ms ambitious plans, as the company has

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been indicating readiness to launch since August. In a surprising

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turn of events, recent reports suggests the FAA could potentially

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approve the license as soon as this month. This sudden

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shift has raised eyebrows and sparked debates within the space community,

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adding to the complexity space s CEO Elon Musk has

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been vocal in his criticism of the FAA. He's called

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for the resignation of FAA Administrator Mike Whittaker and even

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threatened legal action over the perceived delays. The FAA, for

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its part, has cited concerns over SpaceX's compliance with regulations.

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At a recent congressional hearing, Whittaker mentioned that SpaceX had

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failed to complete a timely sonic boom analysis for the

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Starship launch, which contributed to the delay as we await

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the final decision. This situation highlights the delicate balance between

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innovation in the commercial space sector and the need for

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thorough safety oversight. It's a process that will likely continue

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to evolve as private companies push the boundaries of space exploration.

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Several upcoming launches are currently on hold as SpaceX investigates

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a recent anomaly with the Falcon nine second stage. This

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incident occurred during the Crew nine mission, where the stage

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landed outside its designated zone following re entry on September

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twenty eighth. One of the affected missions is the highly

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anticipated Europa Clipper. NASA and SpaceX had initially planned to

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launch this probe to Jupiter's moon Europa on October tenth,

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using a Falcon Heavy rocket. However, due to Hurricane Milton

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approaching Florida, they've postponed the launch to October twelfth, at

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the earliest weather permitting. The Europa Clipper mission is particularly

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challenging even for the powerful Falcon Heavy in its fully

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expendable configuration. At six thousand and sixty five kilograms, the

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probe is one of the heaviest interplanetary payloads ever launched.

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It will embark on a five and a half year

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journey to Jupiter, using gravity assists from Mars and Earth

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to adjust its trajectory. Another mission affected by the Falcon

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nine investigationation is the one Web flight, which was originally

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scheduled to launch from Vandenberg Space Force Base in California.

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This would have been the twentieth launch for the one

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Web Internet constellation, aiming to place twenty satellites into a

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polar orbit. While these missions are delayed due to the

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second stage anomaly, it's worth noting that the Europa Clipper

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launch isn't directly impacted by this investigation. Its delay is

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primarily due to the approaching hurricane. Other launches in the

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pipeline include potential starlink missions and various commercial and government payloads. However,

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specific details and timelines for these launches remain uncertain until

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the Falcon nine investigation concludes and SpaceX receives the necessary

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approvals to resume its regular launch cadence. As we await

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further updates, it's clear that ensuring launch vehicle reliability and

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safety remains a top priority for SpaceX and NASA, even

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if it means temporary delays to high profile missions. In

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a surprising discovery that's challenging our understanding of the early universe,

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astronomers have a galaxy that looks remarkably similar to our

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own Milky Way, but from a time when the Cosmos

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was just a baby. This galaxy, named Rebels twenty five,

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is observed as it appeared about seven hundred million years

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after the Big Bang. To put that in perspective, the

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universe is currently estimated to be about thirteen point eight

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billion years old, so we're looking at a galaxy from

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when the universe was only about five percent of its

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current age. What's truly astounding about Rebels twenty five is

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its structure. Unlike the chaotic, messy formations we typically expect

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to see in early galaxies. This one shows signs of

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being a well ordered, rotating disc. It may even have

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a central bar and spiral arms, though further observations are

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needed to confirm these features. This level of organization is

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something we usually associate with much more mature galaxies. Current

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theories suggest it should take billions of years for galaxies

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to settle into such orderly structures. Finding one so early

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in the universe's history is forcing astronomers to rethink their

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models of galaxy formation and evolution. The discovery was made

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using the Atacama Large Millimeter Submillimeter Array or ALMA, a

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powerful radio telescope in Chile. This finding underscores how much

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we still have to learn about the early universe and

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how quickly cosmic structures can form and evolve. As we

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continue to push the boundaries of our observations, looking further

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back in time and space, we may need to revise

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our understanding of how the first galaxies came to be Rebels.

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Twenty five is a cosmic rebel, indeed, defying our expectations

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and opening up new questions about the universe's earliest days.

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NASA is ramping up efforts to explore alternative concepts for

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the ambitious Mars sample return mission, with the goal of

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reducing costs and accelerating the timeline. The agency has awarded

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several contracts to study new approaches, including one to rocket Lab,

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which was not part of the initial selection but was

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later added due to its innovative proposal. Rocket Lab's concept

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aims to deliver samples collected by the Perseverance Road to

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Earth for a fraction of the currently projected costs, which

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are estimated to be as high as eleven billion dollars.

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Their plan involves using their Neutron rocket, currently in development

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along with other spacecraft projects. The company proposes a simplified

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mission architecture, targeting a total cost to NASA of less

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than two billion dollars. Their aggressive timeline suggests a twenty

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twenty eight launch window, potentially returning samples as early as

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September twenty thirty one or no later than September twenty

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thirty three. This would significantly reduce the risks associated with

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the Perseverance Rovers lifetime on Mars. Other companies involved in

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the study contracts include Blue Origin, which is leveraging its

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commercial capabilities and NASA support for its Blue Moon Lunar Lander.

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Aerojet Rocketdyne is focusing on reducing the mass of both

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the Mars ascent vehicle and its lander, potentially allowing for

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the use of existing skycrane landing technology. Space X, unsurprisingly,

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is a exploring how its starship vehicle could be utilized

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for the mission, though details remain scarce. These industry studies,

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along with internal assessments by NASA's Jet Propulsion Laboratory and

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the Applied Physics Lab, are expected to be completed this fall.

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The agency will use the findings to determine how to

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modify the current Mars sample return architecture to achieve its

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cost reduction and timeline acceleration goals. NASA Administrator Bill Nelson

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has expressed optimism about these efforts, stating that the prospects

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for a much cheaper and quicker Mars sample return mission

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are looking very promising. As the studies conclude and NASA

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evaluates the proposals, we may soon see a reimagined approach

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to bringing the first samples from Mars back to Earth,

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potentially revolutionizing our understanding of the Red planet. When more

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people venture into space, experts are raising concerns about our

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ability to rescue astronauts in distress. The United States currently

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lacks a dedicated, go get them capability for in space

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rescue missions, a worrying reality as commercial spaceflight continues to expand.

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Grant Kates, a senior project leader at the Aerospace Corporation,

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emphasizes that we need to address this gap before an

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emergency occurs, not after. He argues that the US has

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the technology and resources to establish space rescue capabilities, but

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lacks the planning and urgency to make it happen. The

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recent issues with Boeing's Starliner spacecraft highlight the potential risks

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even for relatively simple missions to the International Space Station.

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As private crews take on more ambitious endeavors like high

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altitude spacewalks and lunar missions, the need for rescue capabilities

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becomes even more critical. Experts suggest that a modest investment

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could get the ball rolling on developing these capabilities. A

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small study office to scope out the details of in

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space rescue could be a feasible first step. Some believe

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that industry could take voluntary actions to put at least

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a partial rescue capability in place. Ultimately, congressional legislation may

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be needed to authorize a lead agency and appropriate funding

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for a comprehensive space rescue program. While not all emergencies

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can be resolved with a rescue, having these capabilities in

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place could mitigate risks and potentially save lives as we

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continue to push the boundaries of human spaceflight. In exciting

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news for the search for habitable worlds beyond our Solar system,

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researchers have developed a new method to detect atmospheres on

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distant exoplanets using the James Web space telescope. This breakthrough

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could significantly advance our ability to identify potentially life supporting planets.

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The technique, demonstrated by University of Chicago researchers, compares an

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exoplanet's actual temperature to its theoretical maximum temperature. Since atmospheres

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distribute heat around a planet, worlds with atmospheres tend to

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have cooler hot sides than those without. Using the Web

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telescopes enhanced infrared capabilities, scientists can now measure exoplanet temperatures

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with unprecedented precision. By observing how a planet's heat signature

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changes as it orbits its star, researchers can deduce whether

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an atmosphere is present. This method offers several advantages of

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previous techniques. It's simpler, more efficient, and less prone to

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false results that can be caused by factors like stellar

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activity or cloud cover. The team applied this approach to

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the exoplanet gj Oney one hundred and thirty two B,

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concluding it likely lacks an atmosphere. While this particular world

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isn't a candidate for life, the technique opens up new

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possibilities for surveying other rocky planets. As we gather data

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on more exoplanets, scientists hope to uncover patterns in atmosphere

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formation and retention. This knowledge will be crucial in our

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quest to understand what makes a planet truly habitable and

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where we might find potential cradles for life in the cosmos.

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And that brings us to the end of today's episode

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of Astronomy Daily. I hope you've enjoyed this journey through

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the latest developments in space exploration in astronomy, from SpaceX's

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upcoming starship launch to groundbreaking discoveries about ancient galaxies, it's

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been an exciting roundup of cosmic news. Remember, the universe

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is vast and full of wonders, and we're here to

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keep you informed about all the latest findings and missions.

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If you want to stay up to date with the

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most recent Space in Astronomy news, head over to our

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This is Anna signing off and reminding you to keep

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looking up at the stars until next time. Clear skies

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and happy stargazing Sunday. Star Starz