Feb. 13, 2026

Black Hole Born in Silence | Crew-12 Launches | Inside-Out Planets

Black Hole Born in Silence | Crew-12 Launches | Inside-Out Planets
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Black Hole Born in Silence | Crew-12 Launches | Inside-Out Planets
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Today on Astronomy Daily: Astronomers have witnessed something extraordinary in the Andromeda Galaxy — a massive star that simply vanished, collapsing into a brand-new black hole without the usual supernova fireworks. We cover the SpaceX Crew-12 launch to the ISS, Europe's powerful Ariane 64 flying for the first time with Amazon satellites aboard, another booster anomaly for ULA's Vulcan rocket, a bizarre inside-out planetary system that defies formation models, and NASA's plan to rescue the Swift observatory from orbital decay. Timestamped Chapters 00:00 — Welcome to Astronomy Daily 01:30 — SpaceX Crew-12 launches to the ISS 04:00 — Star vanishes in Andromeda — a black hole is born 08:30 — Europe's Ariane 64 flies for the first time 10:30 — Vulcan rocket suffers repeat booster anomaly 13:00 — The bizarre inside-out planetary system of LHS 1903 15:30 — NASA's Swift observatory fights for survival 17:30 — Sign-off and how to stay connected Key Links • NASA Crew-12 Blog: nasa.gov/blogs/commercialcrew • Vanishing Star Study (Science): doi.org/10.1126/science.adt4853 • Inside-Out Planet Study (Science): doi.org/10.1126/science.adl2348 • NASA Swift Observatory: nasa.gov/swift • Show Website: astronomydaily.io • Social Media: @AstroDailyPod on all platforms


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WEBVTT
Kind: captions
Language: en

00:00:00.240 --> 00:00:02.470
Good morning, good evening, and good


00:00:02.480 --> 00:00:04.550
whenever you're listening. Welcome to


00:00:04.560 --> 00:00:07.030
Astronomy Daily, your front row seat to


00:00:07.040 --> 00:00:09.110
the cosmos. I'm Anna.


00:00:09.120 --> 00:00:11.830
>> And I'm Avery. It's Friday, the 13th,


00:00:11.840 --> 00:00:14.310
February, 2026. And if you're


00:00:14.320 --> 00:00:16.390
superstitious, well, the universe


00:00:16.400 --> 00:00:18.470
doesn't care about your calendar. It's


00:00:18.480 --> 00:00:20.550
been too busy making black holes,


00:00:20.560 --> 00:00:22.950
breaking rockets, and building planetary


00:00:22.960 --> 00:00:25.910
systems that make absolutely no sense.


00:00:25.920 --> 00:00:28.470
>> That's right. We've got an absolutely


00:00:28.480 --> 00:00:30.950
packed show for you today. Astronomers


00:00:30.960 --> 00:00:33.590
may have just watched a star quietly


00:00:33.600 --> 00:00:35.990
collapse into a brand new black hole in


00:00:36.000 --> 00:00:38.389
our neighboring Andromeda galaxy. No


00:00:38.399 --> 00:00:41.670
supernova required. SpaceX's Crew 12 is


00:00:41.680 --> 00:00:43.350
launching to the International Space


00:00:43.360 --> 00:00:45.910
Station as we speak. Europe's most


00:00:45.920 --> 00:00:48.150
powerful rocket just flew for the very


00:00:48.160 --> 00:00:49.990
first time. And that's just for


00:00:50.000 --> 00:00:50.869
starters.


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>> We've also got a Vulcan rocket that


00:00:52.879 --> 00:00:54.869
apparently didn't learn its lesson the


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first time around. a planetary system


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that's been turned completely inside out


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and NASA's Swift Observatory going into


00:01:01.920 --> 00:01:05.030
survival mode to avoid a fiery re-entry.


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Let's get into it.


00:01:06.320 --> 00:01:08.230
>> We're kicking things off with what is


00:01:08.240 --> 00:01:10.630
quite literally happening right now.


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NASA and SpaceX have given the final go


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for Crew 12 mission to the International


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Space Station. Liftoff was scheduled for


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5:15 a.m. Eastern time this morning from


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Space Launch Complex 40 at Cape


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Canaveral. The crew is an international


00:01:25.360 --> 00:01:27.910
squad. We've got NASA astronauts Jessica


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Mir and Jack Hathaway, European Space


00:01:30.479 --> 00:01:32.710
Agency astronauts Sophie Edino from


00:01:32.720 --> 00:01:35.590
France, and Rosscosmos cosminaut Andre


00:01:35.600 --> 00:01:37.990
Fedv from Russia. They're riding aboard


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a SpaceX Dragon capsule on a Falcon 9


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rocket. And this launch was supposed to


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happen yesterday on the 12th, but


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mission teams waved off due to weather


00:01:47.360 --> 00:01:49.429
conditions along the flight path. They


00:01:49.439 --> 00:01:51.429
completed a final weather briefing last


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night and gave the all clear to proceed


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into the countdown.


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>> If everything went according to plan


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this morning, the crew should arrive at


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the station tomorrow afternoon on


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Valentine's Day at around 3:15 p.m.


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Eastern. Romantic, right? Nothing says I


00:02:05.680 --> 00:02:07.350
love you like docking with a space


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station at 28,000 kmh.


00:02:10.479 --> 00:02:12.070
>> Once they're aboard, they'll bring the


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station back up to its full complement


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of seven crew members. The ISS has been


00:02:16.640 --> 00:02:18.630
operating with a reduced crew, so this


00:02:18.640 --> 00:02:20.710
is a welcome reinforcement. They've got


00:02:20.720 --> 00:02:22.710
a packed science agenda waiting for them


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up there.


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>> Fun stat on this one. The Falcon 9


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booster being used, B1081,


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is flying for its 22nd time. 22 flights


00:02:32.560 --> 00:02:34.710
on a single rocket booster. And this is


00:02:34.720 --> 00:02:38.070
the 19th Falcon 9 mission of 2026 alone,


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and we're only in midFebruary. SpaceX's


00:02:40.879 --> 00:02:43.509
launch cadence is just relentless. We'll


00:02:43.519 --> 00:02:45.670
keep you updated on Crew 12's progress


00:02:45.680 --> 00:02:47.589
as they make their way to the station.


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You can catch the full coverage on NASA


00:02:49.599 --> 00:02:52.150
Plus, Amazon Prime, and NASA's YouTube


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channel.


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>> All right, Anna, this next story is the


00:02:55.200 --> 00:02:57.430
kind of thing that gives astrophysicists


00:02:57.440 --> 00:02:59.830
goosebumps. Astronomers believe they've


00:02:59.840 --> 00:03:02.070
witnessed something extraordinary. A


00:03:02.080 --> 00:03:04.070
massive star in the Andromeda galaxy


00:03:04.080 --> 00:03:06.869
that didn't go out by a bang, but just


00:03:06.879 --> 00:03:09.030
quietly vanished. And what it left


00:03:09.040 --> 00:03:11.190
behind appears to be a brand new black


00:03:11.200 --> 00:03:14.550
hole. This is genuinely remarkable. The


00:03:14.560 --> 00:03:18.869
star cataloged as M31204DS1


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was a yellow super giant about 13 times


00:03:22.080 --> 00:03:24.630
the mass of our own sun, sitting roughly


00:03:24.640 --> 00:03:27.430
2.5 million lighty years away in our


00:03:27.440 --> 00:03:29.990
neighboring Andromeda galaxy. Before it


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disappeared, it was one of the brightest


00:03:31.920 --> 00:03:34.390
stars in Andromeda, shining about


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100,000 times brighter than our own sun.


00:03:37.599 --> 00:03:39.910
>> So, here's what happened. A team led by


00:03:39.920 --> 00:03:42.309
Columbia University astrophysicist Kesha


00:03:42.319 --> 00:03:44.550
Leiday was sifting through archival data


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from NASA's Neoise mission, an infrared


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space telescope that mapped the sky from


00:03:49.280 --> 00:03:52.550
2009 to 2024. They were building a map


00:03:52.560 --> 00:03:54.470
of how millions of stars change in


00:03:54.480 --> 00:03:56.869
brightness over time. And buried in that


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data, they found something stunning.


00:03:59.280 --> 00:04:02.470
>> Starting around 2014, this star began to


00:04:02.480 --> 00:04:05.110
brighten in infrared light. Then it


00:04:05.120 --> 00:04:07.350
started fading dramatically in visible


00:04:07.360 --> 00:04:10.470
light. And by 2022, it had vanished


00:04:10.480 --> 00:04:13.509
entirely from Neoise's view. Even with


00:04:13.519 --> 00:04:15.910
the most sensitive telescopes available


00:04:15.920 --> 00:04:18.870
today, there's nothing there. As Depos


00:04:18.880 --> 00:04:21.509
put it, imagine if Betal Juice just


00:04:21.519 --> 00:04:24.230
suddenly disappeared. That's essentially


00:04:24.240 --> 00:04:26.469
what happened here, just in the galaxy


00:04:26.479 --> 00:04:27.430
next door.


00:04:27.440 --> 00:04:30.310
>> Now, normally when a massive star dies,


00:04:30.320 --> 00:04:32.550
it goes out spectacularly as a


00:04:32.560 --> 00:04:35.909
supernova. The core collapses, nutrinos


00:04:35.919 --> 00:04:38.070
erupt outward, and the resulting shock


00:04:38.080 --> 00:04:40.550
wave blasts the stars outer layers into


00:04:40.560 --> 00:04:43.110
space in an explosion that can outshine


00:04:43.120 --> 00:04:46.390
an entire galaxy. But this star didn't


00:04:46.400 --> 00:04:48.710
do any of that. It appears to be what


00:04:48.720 --> 00:04:51.749
astronomers call a failed supernova. The


00:04:51.759 --> 00:04:54.310
theory is that the core collapsed as


00:04:54.320 --> 00:04:57.670
expected, forming a dense neutron star,


00:04:57.680 --> 00:04:59.830
but the shock wave that was supposed to


00:04:59.840 --> 00:05:02.710
blow the star apart just wasn't strong


00:05:02.720 --> 00:05:05.670
enough. Instead of exploding outward,


00:05:05.680 --> 00:05:08.390
most of the stars material fell back


00:05:08.400 --> 00:05:11.350
inward, overwhelming the neutron star


00:05:11.360 --> 00:05:14.710
and creating a black hole. It's death by


00:05:14.720 --> 00:05:17.430
implosion rather than explosion.


00:05:17.440 --> 00:05:19.189
>> And what's really interesting is the


00:05:19.199 --> 00:05:21.749
role of convection. The team realized


00:05:21.759 --> 00:05:24.070
that previous models hadn't properly


00:05:24.080 --> 00:05:26.310
accounted for the churning turbulent


00:05:26.320 --> 00:05:28.790
motions in the stars outer layers. When


00:05:28.800 --> 00:05:30.790
they factored that in, they found the


00:05:30.800 --> 00:05:33.029
convection actually helps sap energy


00:05:33.039 --> 00:05:35.110
from the shock wave, making it more


00:05:35.120 --> 00:05:37.749
likely to fail. That's a significant new


00:05:37.759 --> 00:05:40.550
insight. The material that didn't fall


00:05:40.560 --> 00:05:43.510
straight in is now forming a rotating


00:05:43.520 --> 00:05:46.070
accretion disc around the newborn black


00:05:46.080 --> 00:05:49.510
hole, slowly spiraling inward, much like


00:05:49.520 --> 00:05:52.150
water circling a drain. The infrared


00:05:52.160 --> 00:05:54.310
glow from that debris should remain


00:05:54.320 --> 00:05:57.029
visible to the James Web Space Telescope


00:05:57.039 --> 00:05:59.830
for decades as it gradually fades.


00:05:59.840 --> 00:06:01.830
>> The study was published yesterday in the


00:06:01.840 --> 00:06:04.150
journal Science and the implications are


00:06:04.160 --> 00:06:06.950
huge. If relatively lightweight stars


00:06:06.960 --> 00:06:10.070
like this one at just 13 solar masses


00:06:10.080 --> 00:06:12.790
can collapse directly into black holes,


00:06:12.800 --> 00:06:14.870
then there could be far more black holes


00:06:14.880 --> 00:06:16.309
out there than we've previously


00:06:16.319 --> 00:06:18.710
estimated. This could be a very common


00:06:18.720 --> 00:06:21.029
way for stars to die, and we've just


00:06:21.039 --> 00:06:22.629
been missing it because there's no


00:06:22.639 --> 00:06:23.909
explosion to see.


00:06:23.919 --> 00:06:26.309
>> Not everyone's convinced yet, though.


00:06:26.319 --> 00:06:28.950
Some astronomers suggest this could be a


00:06:28.960 --> 00:06:31.670
case of merging stars whose combined


00:06:31.680 --> 00:06:34.550
light got obscured by dust. But as one


00:06:34.560 --> 00:06:36.950
researcher put it, the definitive test


00:06:36.960 --> 00:06:39.990
is simple. Death is forever. If it's


00:06:40.000 --> 00:06:43.110
truly a black hole, that star is never


00:06:43.120 --> 00:06:45.909
coming back. Future observations with


00:06:45.919 --> 00:06:49.270
JWST will help settle the debate.


00:06:49.280 --> 00:06:51.270
>> Sticking with the launch theme, Europe


00:06:51.280 --> 00:06:53.990
had a huge milestone yesterday. The most


00:06:54.000 --> 00:06:56.469
powerful version of the Aron 6 rocket


00:06:56.479 --> 00:06:58.550
flew for the first time, and it was


00:06:58.560 --> 00:07:00.950
carrying cargo for one of SpaceX's


00:07:00.960 --> 00:07:02.309
biggest competitors.


00:07:02.319 --> 00:07:04.870
>> That's right. Aryan Space launched the


00:07:04.880 --> 00:07:08.309
Arion 64, the four booster configuration


00:07:08.319 --> 00:07:11.189
of Europe's new flagship rocket. It


00:07:11.199 --> 00:07:13.350
lifted off from the Guyana Space Center


00:07:13.360 --> 00:07:18.230
in Kuru, French Guyana at 1645 UTC on


00:07:18.240 --> 00:07:21.749
February 12th. And riding on top were 32


00:07:21.759 --> 00:07:23.990
satellites for Amazon's Internet


00:07:24.000 --> 00:07:26.950
Constellation, now officially branded as


00:07:26.960 --> 00:07:28.469
Amazon LEO.


00:07:28.479 --> 00:07:30.390
>> So, let's break down the naming. The


00:07:30.400 --> 00:07:33.589
Aron 6 comes in two versions. the 62


00:07:33.599 --> 00:07:36.309
with two strap-on solid rocket boosters


00:07:36.319 --> 00:07:39.670
and the 64 with four. This was the first


00:07:39.680 --> 00:07:42.629
time the 64 has ever flown, and it's


00:07:42.639 --> 00:07:45.350
significantly more powerful. Those four


00:07:45.360 --> 00:07:48.390
P120 Seolid boosters give it the extra


00:07:48.400 --> 00:07:51.029
punch needed to loft heavier payloads.


00:07:51.039 --> 00:07:53.830
And Amazon Leo, formerly known as


00:07:53.840 --> 00:07:56.710
Project Kyper, is Amazon's answer to


00:07:56.720 --> 00:07:59.670
SpaceX's Starlink. The plan is to build


00:07:59.680 --> 00:08:03.830
a constellation of 3,236


00:08:03.840 --> 00:08:06.469
satellites providing broadband internet


00:08:06.479 --> 00:08:09.430
from low Earth orbit. So these 32


00:08:09.440 --> 00:08:11.909
satellites are an early batch to start


00:08:11.919 --> 00:08:14.230
building out that network. It's a big


00:08:14.240 --> 00:08:17.189
deal on two fronts. For Europe, the Aron


00:08:17.199 --> 00:08:19.909
64 flying successfully means they now


00:08:19.919 --> 00:08:21.749
have a heavy lift option that can


00:08:21.759 --> 00:08:23.670
compete for larger commercial and


00:08:23.680 --> 00:08:26.309
government payloads. And for Amazon,


00:08:26.319 --> 00:08:28.790
getting satellites up on a non-SP SpaceX


00:08:28.800 --> 00:08:31.430
rocket is strategically important. You


00:08:31.440 --> 00:08:33.269
don't want your main competitor also


00:08:33.279 --> 00:08:35.190
being your sole ride to orbit.


00:08:35.200 --> 00:08:37.029
>> The launch went smoothly with the


00:08:37.039 --> 00:08:39.509
satellites successfully deployed into


00:08:39.519 --> 00:08:42.149
low Earth orbit. It's a promising start


00:08:42.159 --> 00:08:45.110
for the Aron 64 configuration.


00:08:45.120 --> 00:08:47.350
>> Now, speaking of rockets that had a


00:08:47.360 --> 00:08:49.670
slightly less smooth day, we need to


00:08:49.680 --> 00:08:51.990
talk about the Vulcan Centaur. This is


00:08:52.000 --> 00:08:53.670
an update to the story we covered


00:08:53.680 --> 00:08:56.150
yesterday. United Launch Alliance flew


00:08:56.160 --> 00:08:57.990
the USSF87


00:08:58.000 --> 00:09:00.389
mission for the US Space Force early on


00:09:00.399 --> 00:09:02.949
February 12th, and there was a very


00:09:02.959 --> 00:09:06.470
familiar problem. About 30 seconds after


00:09:06.480 --> 00:09:09.190
liftoff from Cape Canaveral, observers


00:09:09.200 --> 00:09:11.590
noticed a bright glow and a shower of


00:09:11.600 --> 00:09:13.910
sparks pouring from the aft end of one


00:09:13.920 --> 00:09:17.190
of the four GEM 63 XL solid rocket


00:09:17.200 --> 00:09:19.590
boosters. Video and tracking footage


00:09:19.600 --> 00:09:22.389
showed what appears to be a nozzle burn


00:09:22.399 --> 00:09:24.710
through where hot exhaust gas


00:09:24.720 --> 00:09:26.389
essentially melts its way through the


00:09:26.399 --> 00:09:27.829
nozzle casing.


00:09:27.839 --> 00:09:30.310
>> And here's the thing, this has happened


00:09:30.320 --> 00:09:33.030
before. The exact same type of anomaly


00:09:33.040 --> 00:09:34.630
occurred during Vulcan's second


00:09:34.640 --> 00:09:36.710
certification flight back in October


00:09:36.720 --> 00:09:39.990
2024. ULA and booster manufacturer


00:09:40.000 --> 00:09:41.750
Northrup Grumman spent months


00:09:41.760 --> 00:09:43.990
investigating that incident, identified


00:09:44.000 --> 00:09:46.150
a manufacturing defect, and said they'd


00:09:46.160 --> 00:09:48.310
fixed it. The third flight in August


00:09:48.320 --> 00:09:50.630
2025 went cleanly.


00:09:50.640 --> 00:09:52.710
>> But now on just the fourth flight


00:09:52.720 --> 00:09:55.590
overall, the problem is back. ULA


00:09:55.600 --> 00:09:58.470
acknowledged it had quote an observation


00:09:58.480 --> 00:10:00.630
early during flight on one of the four


00:10:00.640 --> 00:10:03.190
solid rocket motors and said the team is


00:10:03.200 --> 00:10:04.550
reviewing the data.


00:10:04.560 --> 00:10:06.389
>> The silver lining is that the mission


00:10:06.399 --> 00:10:09.350
still succeeded. The Falcon 9, sorry,


00:10:09.360 --> 00:10:12.070
the Vulcan's twin BE4 main engines


00:10:12.080 --> 00:10:14.630
compensated and the Centaur upper stage


00:10:14.640 --> 00:10:17.190
completed all its planned burns. About


00:10:17.200 --> 00:10:19.430
eight hours after launch, ULA confirmed


00:10:19.440 --> 00:10:21.350
the payloads were successfully delivered


00:10:21.360 --> 00:10:24.790
to geocynchronous orbit more than 22,000


00:10:24.800 --> 00:10:28.150
m above Earth. The primary payload was a


00:10:28.160 --> 00:10:31.110
pair of GSSAP satellites for the Space


00:10:31.120 --> 00:10:33.829
Force. These are maneuverable spacecraft


00:10:33.839 --> 00:10:35.750
that serve as a sort of neighborhood


00:10:35.760 --> 00:10:37.990
watch for geocynchronous orbit,


00:10:38.000 --> 00:10:40.630
monitoring activity near US and Allied


00:10:40.640 --> 00:10:42.870
assets. There were also some research


00:10:42.880 --> 00:10:45.509
and development payloads aboard. But the


00:10:45.519 --> 00:10:47.509
bigger question now is what this means


00:10:47.519 --> 00:10:50.630
for Vulcan's future. ULA had ambitious


00:10:50.640 --> 00:10:53.509
plans to fly 16 to 18 missions this


00:10:53.519 --> 00:10:56.310
year, including launches for Amazon GPS


00:10:56.320 --> 00:10:58.150
satellites and more Space Force


00:10:58.160 --> 00:11:00.870
payloads. A recurring booster issue on a


00:11:00.880 --> 00:11:03.509
rocket that's only flown four times is a


00:11:03.519 --> 00:11:05.829
serious concern. The Space Force has


00:11:05.839 --> 00:11:07.430
already said it will work closely with


00:11:07.440 --> 00:11:09.670
ULA on flightw worthiness before the


00:11:09.680 --> 00:11:11.829
next national security mission.


00:11:11.839 --> 00:11:13.829
>> We'll be watching this one closely.


00:11:13.839 --> 00:11:16.550
Vulcan is supposed to be ULA's flagship


00:11:16.560 --> 00:11:18.710
for the future, replacing the venerable


00:11:18.720 --> 00:11:21.670
Atlas 5. It needs to prove it can fly


00:11:21.680 --> 00:11:23.829
reliably, and a pattern of booster


00:11:23.839 --> 00:11:26.470
issues isn't helping that case.


00:11:26.480 --> 00:11:28.470
All right, time for some planetary


00:11:28.480 --> 00:11:31.110
weirdness. Astronomers have found a star


00:11:31.120 --> 00:11:33.110
system that looks like someone assembled


00:11:33.120 --> 00:11:35.350
the planets in the wrong order. Think of


00:11:35.360 --> 00:11:38.949
it as a cosmic double stuffed Oreo.


00:11:38.959 --> 00:11:41.269
That's actually a great analogy. The


00:11:41.279 --> 00:11:44.949
star is called LHS1903.


00:11:44.959 --> 00:11:47.110
It's a red dwarf about half the mass of


00:11:47.120 --> 00:11:50.630
our sun, located about 116 light years


00:11:50.640 --> 00:11:53.430
away. It has four planets, all orbiting


00:11:53.440 --> 00:11:56.230
in less than 30 days. So it's a very


00:11:56.240 --> 00:11:59.190
compact system and from the star outward


00:11:59.200 --> 00:12:01.750
the arrangement goes rocky gaseous


00:12:01.760 --> 00:12:03.509
gaseous rocky


00:12:03.519 --> 00:12:05.670
>> which is the exact opposite of what


00:12:05.680 --> 00:12:08.069
models predict. In standard planetary


00:12:08.079 --> 00:12:10.310
formation theory rocky planets form


00:12:10.320 --> 00:12:12.150
closer to the star where intense


00:12:12.160 --> 00:12:14.629
starlight strips away atmospheres and


00:12:14.639 --> 00:12:16.629
gas giants form farther out where


00:12:16.639 --> 00:12:18.230
there's more gas available in the


00:12:18.240 --> 00:12:20.949
protolanetary disc. You'd expect rocky


00:12:20.959 --> 00:12:23.910
on the inside, gassy on the outside. But


00:12:23.920 --> 00:12:25.670
LHS1903


00:12:25.680 --> 00:12:27.590
follows the rules beautifully for the


00:12:27.600 --> 00:12:29.910
first three planets. A rocky one closest


00:12:29.920 --> 00:12:32.629
in, then two gaseous ones, and then the


00:12:32.639 --> 00:12:34.790
fourth planet, the one furthest out, is


00:12:34.800 --> 00:12:37.190
rocky again. It's like finding a


00:12:37.200 --> 00:12:39.750
Venuslike world out past Neptune's


00:12:39.760 --> 00:12:42.389
orbit. It just shouldn't be there. The


00:12:42.399 --> 00:12:44.389
system was first discovered by NASA's


00:12:44.399 --> 00:12:47.030
test mission back in 2019. And this


00:12:47.040 --> 00:12:49.350
latest study published February 12th in


00:12:49.360 --> 00:12:52.069
Science used a suite of groundbased and


00:12:52.079 --> 00:12:54.150
space-based instruments to precisely


00:12:54.160 --> 00:12:55.829
determine the planet's masses and


00:12:55.839 --> 00:12:57.670
densities. That's how they could tell


00:12:57.680 --> 00:12:59.430
which ones are rocky and which have


00:12:59.440 --> 00:13:01.590
thick gaseous envelopes.


00:13:01.600 --> 00:13:04.550
>> The leading explanation is planetary


00:13:04.560 --> 00:13:07.590
migration. Sometime early in the systems


00:13:07.600 --> 00:13:09.910
history, the inner planets may have


00:13:09.920 --> 00:13:12.150
shuffled around, similar to what


00:13:12.160 --> 00:13:14.629
happened in our own solar system during


00:13:14.639 --> 00:13:17.110
the late heavy bombardment. A


00:13:17.120 --> 00:13:19.670
gravitational reshuffle could have sent


00:13:19.680 --> 00:13:22.389
a large body crashing into the fourth


00:13:22.399 --> 00:13:25.190
planet, stripping away its atmosphere,


00:13:25.200 --> 00:13:27.829
or the planet may have formed late after


00:13:27.839 --> 00:13:30.230
the system had run out of gas.


00:13:30.240 --> 00:13:32.389
>> As astronomer Andrew Cameron from the


00:13:32.399 --> 00:13:35.190
University of St. Andrews put it, that


00:13:35.200 --> 00:13:37.350
stuff does happen in young planetary


00:13:37.360 --> 00:13:39.590
systems. This one has the look of


00:13:39.600 --> 00:13:42.069
something that's been turned inside out.


00:13:42.079 --> 00:13:44.310
It's a fantastic reminder that for all


00:13:44.320 --> 00:13:46.629
our models and theories, the universe


00:13:46.639 --> 00:13:49.110
keeps finding ways to surprise us.


00:13:49.120 --> 00:13:52.150
>> Our final story today is about a veteran


00:13:52.160 --> 00:13:54.470
space telescope that's fighting for its


00:13:54.480 --> 00:13:57.350
life and NASA's creative plan to save


00:13:57.360 --> 00:14:00.389
it. The Neil Gerald Swift Observatory


00:14:00.399 --> 00:14:02.550
has been one of NASA's workh horses for


00:14:02.560 --> 00:14:04.949
high energy astrophysics. It's been in


00:14:04.959 --> 00:14:08.389
orbit for about 21 years, rapidly sooing


00:14:08.399 --> 00:14:10.389
to observe gammaray births and other


00:14:10.399 --> 00:14:13.269
transient cosmic events. But time and


00:14:13.279 --> 00:14:15.430
physics are catching up with it.


00:14:15.440 --> 00:14:18.310
>> The problem is atmospheric drag.


00:14:18.320 --> 00:14:21.269
Enhanced solar activity, and we're right


00:14:21.279 --> 00:14:24.150
around solar maximum heats Earth's upper


00:14:24.160 --> 00:14:27.509
atmosphere and causes it to expand. That


00:14:27.519 --> 00:14:30.470
expanded atmosphere creates more drag on


00:14:30.480 --> 00:14:33.509
satellites in low orbit, slowly pulling


00:14:33.519 --> 00:14:36.629
them down. Swift's average altitude has


00:14:36.639 --> 00:14:39.189
been steadily declining, and it's now


00:14:39.199 --> 00:14:44.629
dropped below about 250 m or 400 km.


00:14:44.639 --> 00:14:47.670
>> So on February 11th, NASA's Swift team


00:14:47.680 --> 00:14:49.990
made a tough call. They've temporarily


00:14:50.000 --> 00:14:52.710
suspended most science operations. The


00:14:52.720 --> 00:14:54.470
burst alert telescope will keep


00:14:54.480 --> 00:14:56.470
detecting gammaray bursts, but the


00:14:56.480 --> 00:14:58.949
spacecraft will no longer slew to follow


00:14:58.959 --> 00:15:00.710
up on those detections with its other


00:15:00.720 --> 00:15:03.110
instruments. Instead, controllers are


00:15:03.120 --> 00:15:05.110
keeping Swift in a fixed orientation


00:15:05.120 --> 00:15:07.990
that minimizes atmospheric drag. Think


00:15:08.000 --> 00:15:10.790
of it like a swimmer turning sideways to


00:15:10.800 --> 00:15:12.949
cut through a current instead of facing


00:15:12.959 --> 00:15:15.990
it headon. By reducing how much surface


00:15:16.000 --> 00:15:18.949
area Swift presents to the thin wisps of


00:15:18.959 --> 00:15:21.430
atmosphere at that altitude, they can


00:15:21.440 --> 00:15:23.509
slow the orbital decay.


00:15:23.519 --> 00:15:26.150
>> And here's the creative part. NASA has


00:15:26.160 --> 00:15:28.150
contracted a company called Catalyst


00:15:28.160 --> 00:15:30.550
Space Technologies based in Flagstaff,


00:15:30.560 --> 00:15:33.430
Arizona to actually go up and give Swift


00:15:33.440 --> 00:15:35.670
a push. They're planning a servicing


00:15:35.680 --> 00:15:37.590
mission that will boost the observatory


00:15:37.600 --> 00:15:39.990
into a higher orbit, extending its


00:15:40.000 --> 00:15:42.310
scientific lifetime. The reboost


00:15:42.320 --> 00:15:44.629
spacecraft is expected to launch in the


00:15:44.639 --> 00:15:47.189
summer, but for that to work, Swift


00:15:47.199 --> 00:15:51.910
needs to stay above about 185 m, roughly


00:15:51.920 --> 00:15:55.110
300 km. So everything they're doing now


00:15:55.120 --> 00:15:57.990
is about preserving enough altitude to


00:15:58.000 --> 00:16:00.310
make the rescue mission possible.


00:16:00.320 --> 00:16:02.389
>> It's a fascinating case study in


00:16:02.399 --> 00:16:04.790
satellite servicing. If it works, it


00:16:04.800 --> 00:16:06.629
demonstrates a capability that could be


00:16:06.639 --> 00:16:08.629
applied to all sorts of aging


00:16:08.639 --> 00:16:11.030
spacecraft. Rather than letting valuable


00:16:11.040 --> 00:16:13.430
observatories burn up, you send a little


00:16:13.440 --> 00:16:15.749
tugboat to push them back up. The


00:16:15.759 --> 00:16:17.189
economics of that could be


00:16:17.199 --> 00:16:19.509
transformative for space science.


00:16:19.519 --> 00:16:22.150
>> We're rooting for Swift. 21 years of


00:16:22.160 --> 00:16:24.949
service and still going. Fingers crossed


00:16:24.959 --> 00:16:27.030
the reboost mission comes together in


00:16:27.040 --> 00:16:27.990
time.


00:16:28.000 --> 00:16:30.150
>> And that wraps up another packed edition


00:16:30.160 --> 00:16:32.870
of Astronomy Daily. What a Friday the


00:16:32.880 --> 00:16:35.269
13th it's been. From a star silently


00:16:35.279 --> 00:16:37.590
becoming a black hole to rockets that


00:16:37.600 --> 00:16:40.150
keep surprising us, the universe never


00:16:40.160 --> 00:16:42.710
takes a day off. If you enjoyed today's


00:16:42.720 --> 00:16:45.110
episode, please hit subscribe wherever


00:16:45.120 --> 00:16:47.189
you're listening and leave us a review


00:16:47.199 --> 00:16:49.509
if you can. It really does help new


00:16:49.519 --> 00:16:51.990
listeners find us. You can also follow


00:16:52.000 --> 00:16:55.350
us on social media at astroaily pod on


00:16:55.360 --> 00:16:57.110
all the major platforms.


00:16:57.120 --> 00:16:59.189
>> Head over to astronomyaily.io


00:16:59.199 --> 00:17:01.430
io for full show notes and links to all


00:17:01.440 --> 00:17:03.590
the stories we covered today. And if


00:17:03.600 --> 00:17:05.590
you've got questions, story tips, or


00:17:05.600 --> 00:17:07.510
just want to say hi, we'd love to hear


00:17:07.520 --> 00:17:08.390
from you.


00:17:08.400 --> 00:17:10.789
>> Until next time, keep looking up.


00:17:10.799 --> 00:17:15.270
>> Clear skies, everyone. Astronomy day.


00:17:15.280 --> 00:17:23.270
Stories be told.


00:17:23.280 --> 00:17:27.000
Stories to tell.