China Aces Lunar Abort Test, Viking Life Debate Reignited, and Hubble’s Dying Star


In today's episode of Astronomy Daily, Anna and Avery unpack six major space stories. China has achieved a crucial milestone in its crewed lunar programme, successfully testing the Mengzhou capsule's abort system at maximum dynamic pressure while also demonstrating SpaceX-style rocket recovery with the Long March 10 first stage. ULA's Vulcan Centaur rocket is set to launch its longest mission yet, delivering GSSAP space surveillance satellites directly to geosynchronous orbit for the US Space Force. We explain why NASA's Artemis 2 Moon mission has remarkably few launch opportunities — just 11 dates across March and April — and what orbital mechanics, solar power constraints, and hydrogen leaks have to do with it. In astronomy news, NASA's Hubble Space Telescope has produced its clearest image yet of the Egg Nebula, a pre-planetary nebula offering a rare glimpse of a Sun-like star in its death throes. A provocative new study in the journal Astrobiology argues that the 1976 Viking missions may have detected signs of Martian life after all, with perchlorates masking the organic signatures. And finally, astronomers continue searching for remnants of Comet C/2019 Y4 ATLAS, which spectacularly disintegrated during the 2020 pandemic — but may not be entirely gone. Timestamps [00:00] Introduction [01:30] China's Mengzhou capsule abort test & Long March 10 rocket recovery [05:30] ULA Vulcan USSF-87 launch — GSSAP satellites for Space Force [08:30] Artemis 2 launch windows — why only 11 chances in 2 months [11:30] Hubble's stunning Egg Nebula image — a dying star's final act [14:00] Did NASA's Viking missions find life on Mars? New evidence says maybe [16:30] The mystery of 'dead' Comet ATLAS — could fragments survive? [18:00] Sign-off
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Kind: captions
Language: en
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Good day and welcome to Astronomy Daily,
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your go-to source for everything
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happening in space and astronomy. I'm
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Anna
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>> and I'm Avery. It's Thursday, February
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the 12th, 2026, and we have a packed
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show for you today.
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>> We really do. China has just pulled off
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a major milestone in its push to land
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astronauts on the moon, including a
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pretty spectacular rocket splashdown
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that should have a few people at SpaceX
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paying attention. We've also got ULA's
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Vulcan Centaur rocket launching a pair
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of space surveillance satellites for the
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US Space Force, a deep dive into why
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Artemis 2 has so few chances to actually
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get off the ground, and a stunning new
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Hubble image of a dying star. Plus, did
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NASA's Viking missions actually find
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life on Mars 50 years ago? New research
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says the answer might be yes, and
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astronomers are still hunting for the
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remains of a comet that dramatically
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fell apart during CO lockdowns.
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>> Let's get into it. Our lead story today
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takes us to Wang Chong Space launch site
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on the island of Hainan where yesterday,
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February 11th, China conducted a
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landmark test that checked off multiple
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firsts in a single mission. This was a
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lowaltitude demonstration flight of
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China's next generation Long March 10
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rocket carrying the Mangjo crew capsule.
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And what they were testing was something
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called a Max Q abort. Basically, can the
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capsule safely escape the rocket at the
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moment of maximum aerodynamic stress
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during ascent?
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>> And for context, that's the point during
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any rocket launch where the vehicle is
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experiencing the greatest combination of
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speed and atmospheric resistance. If
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something goes wrong at max Q, the crew
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needs to get away fast. This was China's
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first ever test of that scenario with a
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crude class spacecraft. The capsule
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successfully separated from the rocket,
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deployed its parachutes, and was
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recovered at sea. It was carrying lunar
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space suits and test dummies rather than
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actual tyonuts, obviously, but the abort
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system performed exactly as designed.
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>> Now, here is where it gets really
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interesting, Avery. After the capsule
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separated, the Long March 10 first stage
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didn't just tumble into the ocean. It
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performed a powered vertical landing, a
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soft splashdown at sea, very much in the
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style of SpaceX's Falcon 9 booster
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recoveries.
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>> And that's a huge deal because until now
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only the United States has had
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operational reusable orbital class
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rockets. This was China's first
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successful rocket recovery attempt and
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it worked on the very first powered
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flight of the Long March 10 prototype.
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And they even had a dedicated autonomous
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recovery vessel called the Ling Hangzer
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standing by which is essentially China's
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answer to SpaceX's drone ships. The full
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Long March 10 is going to be an absolute
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beast when it's complete. A Tririccore
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rocket standing around 90 m tall with
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about 2700 tons of liftoff thrust. It's
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designed to be China's largest launch
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vehicle and the only one capable of
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sending both a crew spacecraft and a
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lunar lander to the moon in a single
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launch. If things continue at this pace,
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China is projecting a full orbital
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flight of the long march 10 by 2027 with
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tyonauts on the lunar surface before the
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end of the decade. That puts them in a
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very real race with NASA's Aremis
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program, which is targeting its own
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crude landing with Artemis 3 no earlier
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than 2028.
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>> And this test was conducted from the
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brand new launchpad number three in
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Wangchang, which was built specifically
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for these lunar missions. So, the
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infrastructure is going in alongside the
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hardware. A genuinely significant day
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for the Chinese space program and one
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that adds real momentum to what's
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shaping up to be the most exciting moon
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race since Apollo.
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>> Sticking with rockets, but moving to
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Cape Canaveral, ULA's Vulcan Centaur
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rocket is set to launch early this
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morning, February 12, with the window
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opening at 3:30 a.m. Eastern time.
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>> This is the fourth Vulcan mission
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overall and the first of 2026. The
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payload is a pair of GSSAP satellites.
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That's the geocynchronous space
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situational awareness program built by
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Northrop Grumman for the US Space Force.
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>> Think of GSSAP as a neighborhood watch
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program for geocynchronous orbit. These
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satellites monitor other spacecraft at
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that critical 35,000 km altitude,
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improving flight safety and giving Space
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Force operators better situational
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awareness about what's happening up
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there. There's also a secondary payload
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called Propulsive ESPA. Essentially, a
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training spacecraft that Space Force
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Guardians will use to practice precision
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orbital maneuvers and validate
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techniques for protecting assets in
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orbit. What's notable about this
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particular mission is that it's the
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longest Vulcan flight to date, nearly 10
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hours, because the Centaur upper stage
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is performing a direct insertion all the
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way to geocynchronous orbit rather than
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just dropping the satellites into a
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transfer orbit. ULA is under some
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pressure this year. They've got interm
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CEO John Elbon at the helm after Tory
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Bruno departed to join Blue Origin late
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last year and they're targeting 18 to 22
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launches in 2026 after falling short of
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their targets in 2025.
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>> They've invested heavily in
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infrastructure, a second mobile launch
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platform and a second integration
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facility at the Cape. So, the capacity
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is there. The question is whether Vulcan
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can deliver on the reliability and
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cadence that their roughly 80 mission
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backlog demands.
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>> We should note that ULA's webcast
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coverage will end at fairing separation
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about 5 minutes after launch because the
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classified nature of the payload means
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the rest of the mission is conducted in
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silence. Now, speaking of getting
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rockets off the ground, let's talk about
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Artemis 2. Because if you've been
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following the countdown to the first
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crude moon mission in over 50 years, you
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might have noticed something surprising
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about how few chances there actually are
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to launch. NASA has published the
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available launch dates and there are
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just 11 opportunities across March and
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April combined. Five dates in March, the
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6th through the 9th, plus March 11th,
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and six in April. Each window is about 2
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hours long. 11 chances in 61 days.
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That's it. And some of those could be
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lost to weather or the need to replace
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consumables like rocket fuel. So why so
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few?
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>> It all comes down to orbital mechanics
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and the specific requirements of this
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mission. Artemis 2 doesn't fly straight
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to the moon. The SLS rocket first
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delivers the Orion capsule to high Earth
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orbit where the crew and ground teams
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run through a series of checkouts. Then
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comes a trans lunar injection burn to
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send Orion on its way.
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>> So the launch time on any given day has
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to thread the needle. SLS needs to reach
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the right orbit. Orion needs to be in
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the correct alignment with both Earth
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and the moon for that trans lunar
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injection burn. And the whole trajectory
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has to work as a free return loop using
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the moon's gravity to sling the capsule
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home.
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>> And then there's a power constraint.
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Orion's solar arrays can't be in
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darkness for more than 90 minutes at a
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stretch. So NASA has to rule out any
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trajectory that would put the spacecraft
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in an extended eclipse. That alone
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eliminates a lot of potential dates.
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>> The return profile matters too. Orion
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needs a specific entry angle and
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conditions for splashdown. So that
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further narrows the field. Now, the
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reason we're talking about March and
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April specifically, is that the first
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wet dress rehearsal, that's the full
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practice run of fueling and countdown
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procedures, ended early on February 2nd,
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because of a liquid hydrogen leak that
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took February off the table entirely. A
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second wet dress attempt is expected
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soon, possibly this weekend. And NASA
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officials have been reassuring everyone
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that there are launch opportunities in
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every month beyond April as well. They
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just haven't published those dates yet.
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>> And it's worth remembering that Artemis
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1 had similar hydrogen leak issues and
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still flew successfully in late 2022. So
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this isn't uncharted territory.
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>> Whenever it flies, it'll be historic. No
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astronaut has been beyond low Earth
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orbit since Apollo 17 in December 1972.
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That's over 53 years.
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>> Moving on to our next story, and it's
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time for some pure cosmic beauty. NASA
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has released a breathtaking new image
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from the Hubble Space Telescope showing
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the Egg Nebula in extraordinary detail.
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The Egg Nebula is about a thousand
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lighty years away in the constellation
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Signis and it's what astronomers call a
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pre-planetary nebula which despite the
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name has nothing to do with planets
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forming. It's the early stage of a dying
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sunlike star shedding its outer layers.
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And NASA describes it as the first,
00:09:26.800 --> 00:09:28.949
youngest, and closest pre-planetary
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nebula ever discovered, which makes it
00:09:31.440 --> 00:09:33.430
incredibly valuable for studying how
00:09:33.440 --> 00:09:35.990
stars like our sun eventually meet their
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end. What makes this image so striking
00:09:38.959 --> 00:09:41.269
is the structure. At the center, you
00:09:41.279 --> 00:09:43.509
have the dying star, the yolk of the
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egg, hidden behind a dense cloud of
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dust. Quinn beams of light punch outward
00:09:49.200 --> 00:09:51.430
through gaps in that dusty shell,
00:09:51.440 --> 00:09:53.829
illuminating a series of concentric arcs
00:09:53.839 --> 00:09:56.790
of gas that ripple outward like waves.
00:09:56.800 --> 00:09:59.350
And unlike most nebula, which glow
00:09:59.360 --> 00:10:01.750
because their gas has been ionized, the
00:10:01.760 --> 00:10:04.470
Egg Nebula shines purely by reflected
00:10:04.480 --> 00:10:07.030
light from the central star. The star
00:10:07.040 --> 00:10:09.269
hasn't heated up enough yet to ionize
00:10:09.279 --> 00:10:11.430
its surroundings. That's what makes this
00:10:11.440 --> 00:10:14.230
a pre-planetary nebula rather than a
00:10:14.240 --> 00:10:16.949
full planetary nebula. The symmetry is
00:10:16.959 --> 00:10:19.269
remarkable, too. Scientists say the
00:10:19.279 --> 00:10:21.190
patterns are far too orderly to have
00:10:21.200 --> 00:10:22.870
come from a violent event like a
00:10:22.880 --> 00:10:25.509
supernova. Instead, they point to
00:10:25.519 --> 00:10:27.509
coordinated sputtering events in the
00:10:27.519 --> 00:10:30.150
carbonenenriched core of the dying star.
00:10:30.160 --> 00:10:32.389
Though the exact mechanism is still
00:10:32.399 --> 00:10:35.030
poorly understood, there's also evidence
00:10:35.040 --> 00:10:37.509
of gravitational interactions with one
00:10:37.519 --> 00:10:40.230
or more hidden companion stars buried
00:10:40.240 --> 00:10:42.389
deep within the dust, which may be
00:10:42.399 --> 00:10:43.990
helping to shape those dramatic
00:10:44.000 --> 00:10:47.430
outflows. This pre-planetary phase only
00:10:47.440 --> 00:10:50.389
lasts a few thousand years, an absolute
00:10:50.399 --> 00:10:52.949
blink in cosmic terms. So catching a
00:10:52.959 --> 00:10:55.110
nebula at this stage is like catching
00:10:55.120 --> 00:10:57.350
lightning in a bottle. And the material
00:10:57.360 --> 00:10:59.590
being shed here is the same kind of
00:10:59.600 --> 00:11:02.069
carbonri stardust that seated our own
00:11:02.079 --> 00:11:04.630
solar system 4 and a half billion years
00:11:04.640 --> 00:11:07.350
ago. Hubble has observed the Egg Nebula
00:11:07.360 --> 00:11:09.750
before, but this new image taken with
00:11:09.760 --> 00:11:12.389
the wide field camera 3 combines
00:11:12.399 --> 00:11:14.550
multiple data sets to produce the most
00:11:14.560 --> 00:11:17.750
detailed portrait yet. 35 years in orbit
00:11:17.760 --> 00:11:20.470
and Hubble is still delivering. Now for
00:11:20.480 --> 00:11:22.710
a story that could fundamentally change
00:11:22.720 --> 00:11:25.430
how we think about Mars. New research
00:11:25.440 --> 00:11:28.150
published in the journal Astrobiology is
00:11:28.160 --> 00:11:30.230
making the case that NASA's Viking
00:11:30.240 --> 00:11:32.470
missions may have actually detected
00:11:32.480 --> 00:11:35.990
signs of life on Mars back in 1976.
00:11:36.000 --> 00:11:37.750
We just didn't know how to read the
00:11:37.760 --> 00:11:38.710
data.
00:11:38.720 --> 00:11:41.350
>> This is a big claim, so let's unpack it.
00:11:41.360 --> 00:11:43.430
The Viking landers carried an instrument
00:11:43.440 --> 00:11:45.670
called the GCMS,
00:11:45.680 --> 00:11:47.750
the gas chromatography mass
00:11:47.760 --> 00:11:49.829
spectrometer, which was designed to
00:11:49.839 --> 00:11:52.069
detect organic molecules in the Martian
00:11:52.079 --> 00:11:54.710
soil. At the time, it returned what was
00:11:54.720 --> 00:11:57.030
interpreted as a negative result. No
00:11:57.040 --> 00:11:59.350
organics found. Case closed.
00:11:59.360 --> 00:12:01.350
>> And that conclusion essentially shut
00:12:01.360 --> 00:12:03.910
down the debate for decades. The Viking
00:12:03.920 --> 00:12:06.790
project scientist Gerald Soffen famously
00:12:06.800 --> 00:12:09.590
said, "No bodies, no life." And that
00:12:09.600 --> 00:12:11.590
became the textbook answer.
00:12:11.600 --> 00:12:15.030
>> But here's the twist. In 2008, NASA's
00:12:15.040 --> 00:12:17.350
Phoenix Lander discovered perchlorates
00:12:17.360 --> 00:12:19.990
in the Martian soil. Perchlorates are
00:12:20.000 --> 00:12:22.470
powerful oxidizing chemicals. And it
00:12:22.480 --> 00:12:24.470
turns out they break down organic
00:12:24.480 --> 00:12:26.870
molecules when heated, which is exactly
00:12:26.880 --> 00:12:29.829
what the Viking GCMS did to its soil
00:12:29.839 --> 00:12:33.430
samples. Though in 2010, astrobiologist
00:12:33.440 --> 00:12:36.389
Raphael Navaro Gonzalez showed that if
00:12:36.399 --> 00:12:38.790
you take organic material and heat it in
00:12:38.800 --> 00:12:40.790
the presence of perchlorate, you get
00:12:40.800 --> 00:12:43.350
methyl chloride and carbon dioxide,
00:12:43.360 --> 00:12:45.269
which is precisely the chemical
00:12:45.279 --> 00:12:47.509
signature that Viking detected and
00:12:47.519 --> 00:12:50.230
dismissed as either contamination or an
00:12:50.240 --> 00:12:52.069
unknown chemical process.
00:12:52.079 --> 00:12:54.550
>> Lead author Dr. Benner puts it very
00:12:54.560 --> 00:12:58.230
directly. The GCMS didn't fail to
00:12:58.240 --> 00:13:01.110
discover organics. It did discover them
00:13:01.120 --> 00:13:03.670
through their degradation products. We
00:13:03.680 --> 00:13:05.509
just didn't understand what we were
00:13:05.519 --> 00:13:06.230
looking at.
00:13:06.240 --> 00:13:08.310
>> The team has even developed a model for
00:13:08.320 --> 00:13:10.629
what Martian microbes might look like.
00:13:10.639 --> 00:13:13.590
They call it Barum. That's bacterial
00:13:13.600 --> 00:13:16.310
autoroes that respire with stored oxygen
00:13:16.320 --> 00:13:18.550
on Mars. The idea is that these
00:13:18.560 --> 00:13:20.629
organisms could photosynthesize during
00:13:20.639 --> 00:13:23.030
the Martian day, produce and store
00:13:23.040 --> 00:13:25.430
oxygen, then use it to survive the
00:13:25.440 --> 00:13:27.590
freezing Martian nights. I should
00:13:27.600 --> 00:13:30.069
emphasize this doesn't prove there's
00:13:30.079 --> 00:13:32.790
life on Mars, but it does reopen a door
00:13:32.800 --> 00:13:35.829
that was closed 50 years ago and makes a
00:13:35.839 --> 00:13:37.829
compelling case that the evidence was
00:13:37.839 --> 00:13:40.710
there all along hiding in plain sight.
00:13:40.720 --> 00:13:43.509
>> And it raises a fascinating question. If
00:13:43.519 --> 00:13:45.190
we go back to Mars with modern
00:13:45.200 --> 00:13:47.190
instruments designed with perchlorates
00:13:47.200 --> 00:13:49.829
in mind, what else might we find?
00:13:49.839 --> 00:13:52.069
>> Our final story today is a bit of a
00:13:52.079 --> 00:13:56.790
cosmic cold case. Remember comet C209 Y4
00:13:56.800 --> 00:13:57.910
Atlas?
00:13:57.920 --> 00:13:59.990
>> Oh, the pandemic comet. It was
00:14:00.000 --> 00:14:02.710
discovered in December 2019. And as it
00:14:02.720 --> 00:14:04.629
flew toward the inner solar system in
00:14:04.639 --> 00:14:07.670
early 2020, it brightened so rapidly
00:14:07.680 --> 00:14:09.509
that astronomers predicted it could
00:14:09.519 --> 00:14:11.910
become visible to the naked eye, a real
00:14:11.920 --> 00:14:13.509
lockdown spectacle.
00:14:13.519 --> 00:14:16.949
>> And then, like so many plans in 2020, it
00:14:16.959 --> 00:14:19.990
fell apart, literally. In late April
00:14:20.000 --> 00:14:22.069
2020, the comet dramatically
00:14:22.079 --> 00:14:24.870
disintegrated into dozens of pieces.
00:14:24.880 --> 00:14:26.949
Hubble tracked about 30 fragments
00:14:26.959 --> 00:14:29.110
grouped into a few clusters of icy
00:14:29.120 --> 00:14:31.990
debris. But here's the thing. A new
00:14:32.000 --> 00:14:34.230
study in the Astronomical Journal by a
00:14:34.240 --> 00:14:37.110
team led by Salvatore Cordova Kihano at
00:14:37.120 --> 00:14:39.509
Boston University has been asking if
00:14:39.519 --> 00:14:41.829
anything is still out there. Did the
00:14:41.839 --> 00:14:44.470
comet completely destroy itself or could
00:14:44.480 --> 00:14:47.030
a chunk have survived? The team scanned
00:14:47.040 --> 00:14:50.069
the skies in August and October of 2020
00:14:50.079 --> 00:14:52.310
using the Lowel Discovery Telescope in
00:14:52.320 --> 00:14:54.550
Arizona and the Zwicki Transient
00:14:54.560 --> 00:14:56.870
Facility, which surveys the entire
00:14:56.880 --> 00:14:59.430
northern sky every two nights. They
00:14:59.440 --> 00:15:02.790
found nothing. But, and this is the
00:15:02.800 --> 00:15:04.310
intriguing part, that doesn't
00:15:04.320 --> 00:15:06.710
necessarily mean there's nothing left.
00:15:06.720 --> 00:15:08.870
Their analysis suggests that a fragment
00:15:08.880 --> 00:15:11.269
up to about half a kilometer wide could
00:15:11.279 --> 00:15:13.750
still exist, but would be too small and
00:15:13.760 --> 00:15:15.590
too faint for those telescopes to
00:15:15.600 --> 00:15:18.470
detect. It could be out there right now,
00:15:18.480 --> 00:15:20.550
quietly tracing the comet's original
00:15:20.560 --> 00:15:22.470
orbit back toward the outer solar
00:15:22.480 --> 00:15:23.269
system.
00:15:23.279 --> 00:15:25.110
>> The researchers pose a really
00:15:25.120 --> 00:15:27.509
thoughtprovoking question. How many
00:15:27.519 --> 00:15:29.189
comets that we've assumed were
00:15:29.199 --> 00:15:31.829
completely destroyed might actually have
00:15:31.839 --> 00:15:34.069
surviving remnants still orbiting the
00:15:34.079 --> 00:15:36.550
sun? And there's a wonderful historical
00:15:36.560 --> 00:15:38.870
footnote here. Comet Atlas is believed
00:15:38.880 --> 00:15:41.189
to be a fragment of the same parent body
00:15:41.199 --> 00:15:44.629
as the great comet of 1844, which itself
00:15:44.639 --> 00:15:46.310
may have been visible to stone age
00:15:46.320 --> 00:15:49.110
civilizations about 5,000 years ago when
00:15:49.120 --> 00:15:51.030
it swept past the sun.
00:15:51.040 --> 00:15:53.829
>> So somewhere out there, a tiny piece of
00:15:53.839 --> 00:15:57.030
a 5,000-year-old cosmic traveler might
00:15:57.040 --> 00:15:58.949
still be making its lonely journey
00:15:58.959 --> 00:16:01.670
through the darkness. I find that oddly
00:16:01.680 --> 00:16:02.550
beautiful.
00:16:02.560 --> 00:16:05.110
>> Me, too. And the study serves as a heads
00:16:05.120 --> 00:16:07.350
up to astronomers. Next time a comet
00:16:07.360 --> 00:16:09.829
breaks apart, be ready to keep watching
00:16:09.839 --> 00:16:12.230
because the story might not be over.
00:16:12.240 --> 00:16:14.470
>> And that is your Astronomy Daily for
00:16:14.480 --> 00:16:18.310
Thursday, February 12th, 2026. What a
00:16:18.320 --> 00:16:21.110
lineup. From China's moon ambitions to
00:16:21.120 --> 00:16:23.749
Vikings longlost life clues. If you
00:16:23.759 --> 00:16:25.670
enjoyed the show, please do leave us a
00:16:25.680 --> 00:16:27.590
review on your podcast platform of
00:16:27.600 --> 00:16:29.430
choice. It really does help new
00:16:29.440 --> 00:16:31.829
listeners find us. And you can find full
00:16:31.839 --> 00:16:33.990
show notes, links to all our sources,
00:16:34.000 --> 00:16:37.189
and more at astronomyaily.io.
00:16:37.199 --> 00:16:39.509
>> For Avery and the whole Astronomy Daily
00:16:39.519 --> 00:16:41.749
team, I'm Anna. Keep looking up, and
00:16:41.759 --> 00:16:54.069
we'll see you tomorrow.
00:16:54.079 --> 00:16:57.880
Stories told.




