July 28, 2026
LHS 1140b and the Quest for Habitable Atmospheres: Unveiling a Super Earth
SpaceTime Series 29 Episode 90 Discovery of an atmosphere on a planet orbiting a red dwarf Astronomers think they may have detected an atmosphere on a super-Earth exo-planet orbiting in the habitable zone of a nearby red dwarf star. How mega-dust storms and the Sun affect Martian weather A new study has found that solar storms hitting Mars at the same time as planetary wide dust storms could cause major changes in Martian weather. Approval granted for the world’s first orbital space reflector array America’s Federal Communications Commission has approved plans for the first demonstration flight of Reflect Orbital's Eärendil-1 satellite which will test the idea of reflecting sunlight back to Earth on demand. The Science Report Family socioeconomic status more important than parent smoking or drinking for kid’s future health. Ancient 3000-year-old wooden beams dating to the first Jewish temple discovered in Jerusalem. How Rottnest Island Salt Lake bacteria could make biodegradable plastic. The artery-on-a-chip technology that replicates a patient’s blood vessel structure and flow dynamics. Alex on Tech AI getting more Skynet dangerous. Our regular guests: Alex Zaharov-Reutt from techadvice.life Tim Mendham from Australian Skeptics 🌏 Get Our Exclusive NordVPN deal here ➼ www.bitesz.com/nordvpn . The discounts and bonuses are incredible! And it’s risk-free with Nord’s 30-day money-back guarantee! ✌ If you’d like to support the podcast and gain access to bonus content by becoming a SpaceTime crew member, you can do just that through The Big Bang editions on Patreon, Spotify and Apple Podcasts. Details on the Support page on our website https://www.bitesz.com/show/spacetime/support/ For more SpaceTime and show links: https://linktr.ee/biteszHQ If you love this podcast, please get someone else to listen too. Thank you…
The Astronomy, Space, Technology & Science News Podcast.
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This is Spacetime Series twenty nine, Episode ninety for broadcast
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on the twenty ninth of July twenty twenty six. Coming
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up on Spacetime, discovery of an atmosphere on the planet
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orbiting a red dwarf, how Mega Duston's in the sun effect,
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Martian weather, and approval granted for what will be the
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world's first orbital space reflector array, bringing sunshine to dark
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areas of the Earth. All that and more coming up
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on Spacetime.
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Welcome to space Time with Stuart Gary.
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Astronomers think they've detected an atmosphere on a super ef
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exo planet orbiting within the habitable zone of a nearby
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red dwarf star. The habitable zone is that area around
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the star where temperatures are not too hot or too
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cold for liquid water, a central for life as we
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know it to form on the planet's surface. The planet,
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cataloged as LHS eleven forty B, has about five point
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six times the mass of the Earth and is about
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seventy percent larger in radius. Its hostar, LHS eleven forty
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is a spectral type M red dwarf in the constellation
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of Cetus. The Whale some forty eight point eight light
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years away. It's some five billion years old, making it
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only slightly older than our Sun. It has about eighteen
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percent of the Sun's mass and around twenty one percent
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of its radius. Now importantly, no flares have ever been
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observed coming from the star, and that's exciting because red
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dwarfs are usually notorious for their violent outbursts of stellar flares,
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and that means any orbiting planets would have their atmospheres
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blown away by the host star strong stellar flare activity.
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The new findings, reported in the journal Science suggest that
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LHS eleven forty B is a rocky terrestrial world, complete
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with its turn atmosphere. One of the studies authors, Jason Dittman,
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from the University of Florida, who first discovered the planet
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back in twenty sixteen, says observations by the Magill and
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Clay telescope in Chile have detected helium escaping from the
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planet now. The planet's age suggests that it should have
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run out of helium by now, that is, unless it
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was replenishing its own supply, and that suggests the potential
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of an atmosphere. Dittman says, considering the type of star
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its orbiting, this planet's temperature should be similar to that
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of the Earth, and it's not alone. There's a second
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planet in the system, LHS eleven forty C, but that's
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located outside this starts habitable zone. LHS eleven forty B
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is also important because other rocky exoplanets discovered the past
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decade or so have all lost their atmospheres over time.
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Considering the age of LHS eleven forty B and the
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lack of atmospheres on similar exoplanets, Dittman and colleagues didn't
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expect to fight helium, but this planet was different. The
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Magill and Clay telescope's explained the rate at which the
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planet lost its helium because of the X ray radiation
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from the host star. Therefore, the X ray data proved
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this rocky world must be replenishing its own supply of helium.
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If it wasn't, there'd be no helium left by now. Now.
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The authors were looking for helium because it's easy to spark,
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but now that there is the potential proof of an atmosphere,
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they're looking for other chemicals such as come to the
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oxide and water the further test of planet's conditions. Dipman says,
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because this helium there, and because the helium's escaping, the
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question is is it a bare rock world with no
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atmosphere that sometimes burbs up some gas that then immediately escapes,
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or is there a steady state atmosphere there, one that
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from time to time will leak out stuff like the
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Earth does. He says, the next move will involve getting
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data from the web Space Telescope over the next four
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to five years. It'll be studying this world, and if
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it finds water in the atmosphere, then it's probable that
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LHS eleven forty B has a stable atmosphere that will persist.
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This is spaced time. Still the calm, how megadustorms in
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the Sun affect Martian weather, and approval granted for the
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world's first orbital space reflect or array, shining extra light
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on those areas of the planet that only don't get
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much sunlight. All that and more, still the calm on
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space time. A new study is found that solar storms
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heading Mars at the same time as planetary white dust
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storms in cause major changes in Martian weather. The findings
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reported to the Royal Astronomical Society's National Conference in Birmingham,
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based on observations of rising temperatures in the red planet's
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lower atmosphere when the two events coincide, hinting that Mars
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may have a more complex atmospheric environment and weather system
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than previously thought. Scientists examined five solar energetic particle events
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on Mars in order to determine whether they could warm
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the lower Martian atmosphere, where weather occurs. Solar energetic particle
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events occur wh all of flares and chronal mass ejections
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from the Sun released high energy charged particles in the space,
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and Mars is especially exposed to these particles because it
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has a thin atmosphere and no strong global magnetic field
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to shield the planet, such as the os magnetosphere. As
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the authors took their readings, they found four of the
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events showed no clear effect on the planet, but the fifth,
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which occurred in June twenty eighteen, unexpectedly coincided with an
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expanding Martian global dust storm. It was the same event
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which shut down and ended the mission of NASA's Mars
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Opportunity Rover, and it was during this event that signs
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of lower atmospheric heating were detected. The studies lead author
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Lana Williams from Lancaster University says she expected that these
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highly energetic particles would have some effect on temperatures in
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the planet's lower atmosphere, but in four of the five
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events studied, there was no clear evidence of any heating.
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The one exception occurred while a global dust storm was
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expanding across the planet's surface. To reach their conclusion, the
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authors use data from this as MAYVEN, Mars Atmosphere and
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Volatile Evolution spacecraft, and the European Space agencies Mars Trace
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Gas Orbiter MAVEN. The studies interactions between the Sun and
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the Martian upper atmosphere or trace gas orbitter measures the
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composition and structure of the entire Martian atmosphere. The observations
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were then compared with expected temperature profiles from the Mars
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climate database. Williams and colleagues examined temperatures before, during, and
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after the five long lasting solar energetic particle events. Now,
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the authors admit that a single observation really isn't enough
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to prove cause and effect, but the findings do raise
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the possibility that space weather in Martian dust storms might
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combine to affect the red planet's lower atmosphere in ways
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that have not previously been studied. Previous research has shown
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that solar energetic particles can affect Mars's upper atmosphere because
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the ionization effuse auroral activity and disruption to radio signals,
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but their possible effect on the lower at the sphere
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of Mars but weather takes place is not well understood.
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Dust Storms naturally heat parts of the Martian atmosphere by
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absorbing sunlight. However, the authors found that this pattern of
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heating observed during the combined event was unusual for a
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dust storm and could not be explained by the storm alone.
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They identified the global storm only after noticing that heat
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appeared during only one of the observed solar energetic particle events,
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but not the others, and so set out to investigate
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what was going on. Understanding these combined effects could improve
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models of the Martian atmosphere and help scientists interpret future
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temperature observations during periods of intense solar and dust storm activity.
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Of course, the twenty eighteen Martian global dustorm wasn't unique.
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The red planets hit by dust storms blanketing the entire
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globe on a regular basis. Another dust storm in twenty
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twenty two ended NASAs Mar's Insight mission after it too
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was covered in the thick red dust layer, preventing its
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solar panels from charging the land its battery.
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This report from January twenty twenty two, a dust storm
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nearly twice the size of the United States, blankets Mars's
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southern hemisphere, reducing sunlight and uniting NASA's spacecraft to help
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one another through the storm. NASA's Curiosity Rover captured images
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as the dust rolled in, obscuring the horizon. Also in
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the storm's path was NASA's Insight lander, which had to
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stop its science work after dust prevented sunlight from reaching
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the solar panels. Insight hunkered down for eleven days to
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conserve battery power, but didn't weather the storm alone. A
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fleet of NASA orbiters monitored dust storms from above and
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serves as a lifeline to Earth, relaying data from Mars's
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explorers back to the team. Dust Storms like this recent
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one start close to the ground and are spread by
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wind as they rise, warming the cold Martian atmosphere. Storms
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are detected by mro's Mars Color Imager or MARSI, which
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produces a daily global weather map. As dust rises in
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the atmosphere, mro's Mars Climate Sounder instrument measures temperature to
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determine how fast the storm could spread. MAVEN studies the
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upper atmosphere, including how dust affects the escape of water
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and other gases from the atmosphere, and for twenty years,
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Odyssey's Thermal Emission Imaging System or THEMIS, has helped measure
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global dust activity over time. The orbiter sends most of
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INSIGHT's data to Earth, but as Odyssey went to check
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in on Insight, it experienced a software issue. The Odyssey
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team swung into action, recovering quickly so engineers could send
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new instructions to Insight. The dust even grounded NASA's Ingenuity
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Mars helicopter, postponing flights until conditions improved. Dust Storms formed
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during all margiancy pas, since some can balloon in a
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matter of days, like the twenty eighteen global dust storm,
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which led to the end of NASA's Opportunity Rover. Despite
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the challenges dust creates for spacecraft, studying storms is critical
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for creating future weather forecasts and preparing for a potential
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human mission to Mars.
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This is space time still to calm. Approval given for
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a new test to look at the idea of affecting
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sunlight back to Earth to increase light in darkened areas
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of the planet, and later in the science report. A
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yet study has found that a family socioeconomic status is
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more important and whether or not parents smoke and drink
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in terms of its impact on children's future health. All
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that is more still to calm on space time. America's
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Federal Communications Commission as approved plans for the first demonstration
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flight of reflect Orbital's a Rendel one satellite, which will
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test the idea of reflecting sunlight back to Earth on demand.
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The name of Rendel comes from a character in the
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Lord of the Rings trilogy who carried the light of
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the morning Star on his brow. The spacecraft, which is
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expected to launch later this year, will unfurl a giant
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eighteen by eighteen meter diameter reflector designed to shine the
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light down to Earth. Reflect Orbital plans to launch three
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test reflectors three months apart. The approval will see the
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first deray launch on the six hundred and twenty five
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kilometa high knee polar orbit at an inclination of eighty
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eight degrees, a trajectory which suggests Vandenberg would be the
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best launch sight. Ultimately, the company envisages a constellation of
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over fifty thousand reflectors circling the planet by twenty thirty five.
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Back in nineteen ninety two, Russia deployed the twenty meter
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Zamnia two space Mira from the space station. It created
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a five kilometer wide patch of light as bright as
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a full moon that traversed Europe early in the morning
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of February fourth, nineteen ninety three. Reflect Orbital says it
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wants to provide undermanded solar power to meet regional peak demands,
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as well as providing additional light for disaster relief and
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increasing agricultural production. Of course, this new project is just
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the latest assault on ground based astronomical research, and it
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comes in the wake of Starlink's ever expanding constellation of
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broadband communication satellites, as well as China's rival Quinn Fan
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thousand Cells, Mega Constellation and ast space mobiles Blue Walker
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and blue Bird satellites, all of which are disrupting the
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important scientific research being carried out by astronomers. Beyond its
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impact on astronomy, they are also safety concerns for the
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public and aviation, as well as the likely impact this
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will have on wildlife. This is space time and time
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that I take another brief look at some of the
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other stories making news and science this week with a
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science report. A new study claims a family socioeconomic status
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may be more important than parental behaviors such as smirking
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or drinking when it comes to children's future health. The findings,
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reported in the journal plus one, analyzed data from more
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than two hundred and thirty thousand parents and children in
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the UK and Norway, including details on parental health behaviors
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and their sachioeconomic status. The authors link these variables at
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seventy two different child health outcomes at six time points,
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including size of delivery, weight, hyperactivity, social communication, aggression, and
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depressive symptoms, and they found no difference between the behaviors
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of mothers and fathers when it came to child health outcomes,
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but they did determine that sayioeconomic status had the biggest
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overall effect. In fact, fifteen percent of a child's health
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effects were linked with family affluence. That compares with six
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percent for smoking and three percent for alcohol. Archaeologists of
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uncovered burnt wooden beams dating back more than two and
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a half thousand years to the time of the destruction
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of the First Jewish Temple in Jerusalem around five eighty
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six BCE. The artifacts who were discovered during excavations that
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had dig sited the city of David by scientists from
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the Israel Antiquities Authority and Tel Aviv University. The authors
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say the beams were likely part of a roof of
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an inner courtyard and were originally sealed under plaster that
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melted during the fire. During their destruction, they collapsed onto
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the floor, with a melted plaster acted as a preservative
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to keep them safe until now. The authors say the
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unusually large number of growth rings in the timbers could
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allow dating with unprecented precision, narrowing the timeframe to as
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little as ten years. The First Jewish Temple the original
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biblical temple described in the Old Testament, the one built
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by King Solomon, the son of King David, three thousand
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years ago on what is now known as the Temple Mount.
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It was built to house the Ark of the Covenant
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in the Holy of Hollies, a windowless in the sanctum
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within the building. It was destroyed four hundred and seventy
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years later by the Babylonians during the Siege of Jerusalem
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