Jan. 23, 2026

Artemis II’s Historic Cargo, Orbital Debris Crisis, and AI Finds 7,000 New Worlds

Artemis II’s Historic Cargo, Orbital Debris Crisis, and AI Finds 7,000 New Worlds
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Artemis II’s Historic Cargo, Orbital Debris Crisis, and AI Finds 7,000 New Worlds
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Welcome to Astronomy Daily! Today we explore NASA's inspiring collection of historic keepsakes heading to the Moon on Artemis II, including fabric from the 1903 Wright Flyer. We examine an urgent warning about orbital debris—the CRASH Clock shows catastrophic collision could occur in just 5.5 days if satellites lose maneuvering capability. New analysis of Apollo lunar samples challenges our understanding of where Earth's water came from. Irish researchers solve the mystery of how supermassive black holes grew so quickly in the early universe. Plus, Blue Origin schedules its third New Glenn launch with a reused booster, and NASA's AI tool ExoMiner++ identifies 7,000 new exoplanet candidates in TESS data.

Hosts: Anna & Avery

Episode: S05E20


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WEBVTT
Kind: captions
Language: en

00:00:00.400 --> 00:00:03.590
Welcome to Astronomy Daily. I'm Anna.


00:00:03.600 --> 00:00:05.990
>> And I'm Avery. It's Friday, January


00:00:06.000 --> 00:00:08.549
23rd, and we've got an amazing lineup of


00:00:08.559 --> 00:00:10.629
space stories to close out your week.


00:00:10.639 --> 00:00:13.509
>> We certainly do. Today, we're exploring


00:00:13.519 --> 00:00:16.150
NASA's plans to send some very special


00:00:16.160 --> 00:00:19.429
keepsakes around the moon on Artemis 2,


00:00:19.439 --> 00:00:21.990
Blue Origin's latest new Glenn launch


00:00:22.000 --> 00:00:24.710
plans, and some fascinating new research


00:00:24.720 --> 00:00:27.029
about where Earth's water really came


00:00:27.039 --> 00:00:29.509
from. Plus, we'll dive into a rather


00:00:29.519 --> 00:00:31.269
urgent warning about the increasing


00:00:31.279 --> 00:00:33.670
dangers of space debris, uncover new


00:00:33.680 --> 00:00:35.830
insights about how super massive black


00:00:35.840 --> 00:00:38.869
holes grew so quickly, and learn how AI


00:00:38.879 --> 00:00:40.950
is helping scientists discover thousands


00:00:40.960 --> 00:00:43.910
of new exoplanets. Let's get started.


00:00:43.920 --> 00:00:46.549
>> Avery, as Artemis 2 preparations


00:00:46.559 --> 00:00:49.270
continue at Kennedy Space Center, NASA


00:00:49.280 --> 00:00:51.350
has revealed something really special


00:00:51.360 --> 00:00:53.430
they'll be taking along for the ride.


00:00:53.440 --> 00:00:55.830
And it's not just the four astronauts.


00:00:55.840 --> 00:00:57.510
Oh, I love when missions carry


00:00:57.520 --> 00:00:59.349
meaningful items. What are they


00:00:59.359 --> 00:01:00.069
bringing?


00:01:00.079 --> 00:01:02.630
>> This is fascinating. The official flight


00:01:02.640 --> 00:01:05.109
kit includes a piece of fabric from the


00:01:05.119 --> 00:01:08.789
original 1903 Wright flyer. It's a tiny


00:01:08.799 --> 00:01:11.670
swatch just 1 in square from the very


00:01:11.680 --> 00:01:13.670
first aircraft that made the powered


00:01:13.680 --> 00:01:16.070
flight at Kittyhawk. What's even cooler


00:01:16.080 --> 00:01:18.710
is that this same piece already flew on


00:01:18.720 --> 00:01:20.950
the space shuttle Discovery back in


00:01:20.960 --> 00:01:22.550
1985.


00:01:22.560 --> 00:01:24.550
So, it's making its second journey to


00:01:24.560 --> 00:01:26.789
space. That's a beautiful connection


00:01:26.799 --> 00:01:28.550
between the beginning of powered flight


00:01:28.560 --> 00:01:31.030
and humanity's return to the moon. What


00:01:31.040 --> 00:01:32.310
else is in the flight kit?


00:01:32.320 --> 00:01:34.230
>> Bears an American flag with an


00:01:34.240 --> 00:01:36.950
incredible history. It flew on the very


00:01:36.960 --> 00:01:40.230
first shuttle mission, STS1, and the


00:01:40.240 --> 00:01:43.670
final shuttle mission, STS135.


00:01:43.680 --> 00:01:46.469
It also went up on SpaceX's first crude


00:01:46.479 --> 00:01:49.109
Dragon flight. Talk about bookending an


00:01:49.119 --> 00:01:51.510
era of space flight. That flag has seen


00:01:51.520 --> 00:01:53.830
some serious history. Is there anything


00:01:53.840 --> 00:01:55.830
connecting Artemis back to the Apollo


00:01:55.840 --> 00:01:56.630
program?


00:01:56.640 --> 00:01:58.870
>> Absolutely. They're flying a flag that


00:01:58.880 --> 00:02:01.910
was originally meant for Apollo 18, a


00:02:01.920 --> 00:02:04.069
mission that never happened. This will


00:02:04.079 --> 00:02:06.630
be its very first space flight, finally


00:02:06.640 --> 00:02:08.869
fulfilling its original destiny after


00:02:08.879 --> 00:02:11.350
all these years. There's also a photo


00:02:11.360 --> 00:02:13.589
negative from the Ranger 7 mission,


00:02:13.599 --> 00:02:16.150
which was the US first spacecraft to


00:02:16.160 --> 00:02:18.229
successfully reach the lunar surface


00:02:18.239 --> 00:02:20.150
back in the 1960s.


00:02:20.160 --> 00:02:21.830
>> It's like they're weaving together the


00:02:21.840 --> 00:02:24.470
entire story of American exploration.


00:02:24.480 --> 00:02:26.150
And knowing NASA, I bet they're


00:02:26.160 --> 00:02:27.830
including the public somehow.


00:02:27.840 --> 00:02:30.869
>> Of course, an SD card carrying millions


00:02:30.879 --> 00:02:33.670
of names, including ours, from the send


00:02:33.680 --> 00:02:35.670
your name to space campaign, will be


00:02:35.680 --> 00:02:38.229
aboard. NASA administrator Jared


00:02:38.239 --> 00:02:40.550
Isaacman put it beautifully when he


00:02:40.560 --> 00:02:42.790
said, "These artifacts reflect the long


00:02:42.800 --> 00:02:45.509
arc of American exploration and the


00:02:45.519 --> 00:02:47.750
generations of innovators who made this


00:02:47.760 --> 00:02:50.470
moment possible." With about 10 lbs of


00:02:50.480 --> 00:02:53.670
momentos in total, Artemis 2 will truly


00:02:53.680 --> 00:02:56.150
be carrying our collective history and


00:02:56.160 --> 00:02:58.630
dreams forward into the next chapter


00:02:58.640 --> 00:02:59.670
beyond Earth.


00:02:59.680 --> 00:03:01.670
>> What a perfect way to mark America's


00:03:01.680 --> 00:03:04.790
250th anniversary. Now, speaking of


00:03:04.800 --> 00:03:06.869
missions and launches, let's shift gears


00:03:06.879 --> 00:03:08.869
to Blue Origin and their New Glenn


00:03:08.879 --> 00:03:09.509
rocket.


00:03:09.519 --> 00:03:11.750
>> Blue Origin has announced their third


00:03:11.760 --> 00:03:13.910
New Glenn launch is scheduled for late


00:03:13.920 --> 00:03:15.990
February. And there's an interesting


00:03:16.000 --> 00:03:17.430
twist to this one.


00:03:17.440 --> 00:03:19.270
>> Let me guess, everyone expected them to


00:03:19.280 --> 00:03:21.589
fly their Blue Moon lunar lander next.


00:03:21.599 --> 00:03:22.309
Right.


00:03:22.319 --> 00:03:24.710
>> Exactly. But instead, they're launching


00:03:24.720 --> 00:03:27.990
a satellite for AS Space Mobile, making


00:03:28.000 --> 00:03:30.309
it the second commercial payload to fly


00:03:30.319 --> 00:03:33.430
on New Glenn. The Blue Moon Mark1 lander


00:03:33.440 --> 00:03:35.430
is currently being shipped to NASA's


00:03:35.440 --> 00:03:37.670
Johnson Space Center for vacuum chamber


00:03:37.680 --> 00:03:39.589
testing, and they haven't announced a


00:03:39.599 --> 00:03:41.350
launch date for that mission yet.


00:03:41.360 --> 00:03:43.430
>> So, what makes this particular launch


00:03:43.440 --> 00:03:44.229
notable?


00:03:44.239 --> 00:03:46.630
>> This will be the third new Glenn launch


00:03:46.640 --> 00:03:49.190
in just over a year, which is impressive


00:03:49.200 --> 00:03:51.589
considering the rocket spent a decade in


00:03:51.599 --> 00:03:53.750
development. But here's the really


00:03:53.760 --> 00:03:55.910
exciting part. They're reusing the


00:03:55.920 --> 00:03:58.550
booster from November's second flight.


00:03:58.560 --> 00:04:00.630
They successfully landed it on a drone


00:04:00.640 --> 00:04:02.949
ship in the ocean just like SpaceX does


00:04:02.959 --> 00:04:04.949
with Falcon 9.


00:04:04.959 --> 00:04:07.350
>> So, this demonstrates their reusability


00:04:07.360 --> 00:04:09.750
program is working. That's crucial for


00:04:09.760 --> 00:04:12.309
reducing launch costs. What else is Blue


00:04:12.319 --> 00:04:13.750
Origin working on?


00:04:13.760 --> 00:04:16.310
>> They've got some ambitious plans. In


00:04:16.320 --> 00:04:18.710
November, they revealed a Superheavy


00:04:18.720 --> 00:04:21.270
variant of New Glenn that will be taller


00:04:21.280 --> 00:04:24.150
than a Saturn 5 rocket on par with


00:04:24.160 --> 00:04:26.790
SpaceX's Starship. And just this week,


00:04:26.800 --> 00:04:28.629
they announced a satellite internet


00:04:28.639 --> 00:04:31.110
constellation called Terrowave that they


00:04:31.120 --> 00:04:34.710
plan to start deploying in late 2027.


00:04:34.720 --> 00:04:36.870
>> February is shaping up to be a busy


00:04:36.880 --> 00:04:38.950
month for space flight. NASA might


00:04:38.960 --> 00:04:41.430
launch Artemis 2 as early as February


00:04:41.440 --> 00:04:43.990
6th. SpaceX is testing the third version


00:04:44.000 --> 00:04:46.150
of Starship and Crew 12 to the


00:04:46.160 --> 00:04:47.990
International Space Station is also


00:04:48.000 --> 00:04:50.390
scheduled. Speaking of busy orbital


00:04:50.400 --> 00:04:52.550
environments, that brings us to our next


00:04:52.560 --> 00:04:55.590
story about space debris. Avery, this


00:04:55.600 --> 00:04:58.629
next story is both fascinating and a bit


00:04:58.639 --> 00:05:01.189
alarming. A new study has introduced


00:05:01.199 --> 00:05:03.430
something called the crash clock. And


00:05:03.440 --> 00:05:05.590
according to their calculations, if


00:05:05.600 --> 00:05:08.070
satellite operators suddenly lost the


00:05:08.080 --> 00:05:10.469
ability to maneuver their spacecraft, we


00:05:10.479 --> 00:05:12.950
could see a catastrophic collision in


00:05:12.960 --> 00:05:15.430
just 5.5 days.


00:05:15.440 --> 00:05:19.350
>> Wait, 5.5 days? That's incredibly short.


00:05:19.360 --> 00:05:21.029
What's driving this?


00:05:21.039 --> 00:05:23.350
>> Mega constellations. The researchers


00:05:23.360 --> 00:05:25.189
found that close approaches between


00:05:25.199 --> 00:05:27.670
satellites, defined as two satellites


00:05:27.680 --> 00:05:29.590
passing within 1 kilometer of each


00:05:29.600 --> 00:05:32.710
other, now happen every 22 seconds


00:05:32.720 --> 00:05:35.029
across all low Earth orbit mega


00:05:35.039 --> 00:05:37.749
constellations. For Starlink alone, it's


00:05:37.759 --> 00:05:40.629
once every 11 minutes. Each Starling


00:05:40.639 --> 00:05:43.270
satellite performs an average of 41


00:05:43.280 --> 00:05:45.670
avoidance maneuvers per year.


00:05:45.680 --> 00:05:48.310
>> Those numbers are staggering. And you


00:05:48.320 --> 00:05:51.189
said 5.5 days. I thought I'd heard this


00:05:51.199 --> 00:05:53.510
was originally 2.8 days.


00:05:53.520 --> 00:05:56.070
>> Good catch. The team updated their model


00:05:56.080 --> 00:05:58.150
based on community feedback. The


00:05:58.160 --> 00:06:00.870
original calculation was 2.8 days, but


00:06:00.880 --> 00:06:03.350
after incorporating expert input, they


00:06:03.360 --> 00:06:07.430
revised it to 5.5 days for 2025 data. By


00:06:07.440 --> 00:06:10.070
comparison, back in 2018, before the


00:06:10.080 --> 00:06:12.629
mega constellation era really took off,


00:06:12.639 --> 00:06:15.990
it would have taken 164 days before a


00:06:16.000 --> 00:06:19.749
collision. So, we've gone from 164 days


00:06:19.759 --> 00:06:23.510
down to 5.5 days in just 7 years. What


00:06:23.520 --> 00:06:25.350
could cause operators to lose control


00:06:25.360 --> 00:06:26.469
like that?


00:06:26.479 --> 00:06:28.870
>> Solar storms are the main threat. When a


00:06:28.880 --> 00:06:31.029
coronal mass ejection hits Earth, it


00:06:31.039 --> 00:06:33.270
heats up the upper atmosphere, creating


00:06:33.280 --> 00:06:35.510
more drag on satellites and making their


00:06:35.520 --> 00:06:37.990
trajectories harder to predict. During


00:06:38.000 --> 00:06:41.430
the Ganon storm in May 2024, over half


00:06:41.440 --> 00:06:43.830
of all satellites in low Earth orbit had


00:06:43.840 --> 00:06:46.629
to use fuel for repositioning maneuvers.


00:06:46.639 --> 00:06:49.029
More seriously, solar storms can knock


00:06:49.039 --> 00:06:50.870
out satellites navigational and


00:06:50.880 --> 00:06:52.870
communication systems, leaving them


00:06:52.880 --> 00:06:55.029
unable to maneuver at all.


00:06:55.039 --> 00:06:57.029
>> And solar storms don't give us much


00:06:57.039 --> 00:06:58.469
warning, do they?


00:06:58.479 --> 00:07:01.029
>> Typically, just a day or two at most.


00:07:01.039 --> 00:07:03.670
The study found that within 24 hours of


00:07:03.680 --> 00:07:05.990
losing maneuvering capability, there's a


00:07:06.000 --> 00:07:08.150
30% chance of a collision between


00:07:08.160 --> 00:07:11.189
tracked objects and a 26% chance of a


00:07:11.199 --> 00:07:13.430
collision involving a Starlink satellite


00:07:13.440 --> 00:07:15.830
specifically. Such collisions would be


00:07:15.840 --> 00:07:18.390
catastrophic, creating major debris


00:07:18.400 --> 00:07:20.710
generating events with high likelihood


00:07:20.720 --> 00:07:23.830
of secondary and tertiary collisions.


00:07:23.840 --> 00:07:26.150
That sounds like Kesler syndrome. The


00:07:26.160 --> 00:07:28.309
cascade effect where collisions create


00:07:28.319 --> 00:07:30.950
debris that causes more collisions.


00:07:30.960 --> 00:07:33.270
>> Exactly. Though the researchers want to


00:07:33.280 --> 00:07:35.589
be clear about something important. Lead


00:07:35.599 --> 00:07:37.909
author Sarah Theal emphasized they're


00:07:37.919 --> 00:07:40.629
not saying Kesler syndrome is days away.


00:07:40.639 --> 00:07:42.790
The crash clock only measures time to


00:07:42.800 --> 00:07:45.029
the first collision, not a runaway


00:07:45.039 --> 00:07:47.510
cascade. Bull Kesler syndrome would take


00:07:47.520 --> 00:07:50.150
decades or even centuries to develop.


00:07:50.160 --> 00:07:52.309
But the clock does show how reliant we


00:07:52.319 --> 00:07:55.029
are on errorless operations every single


00:07:55.039 --> 00:07:56.070
day.


00:07:56.080 --> 00:07:58.230
>> So it's more of a stress indicator for


00:07:58.240 --> 00:07:59.990
the orbital environment.


00:08:00.000 --> 00:08:03.350
>> Right. The team suggests the crash clock


00:08:03.360 --> 00:08:05.510
could serve as a key environmental


00:08:05.520 --> 00:08:07.909
indicator similar to how we use carbon


00:08:07.919 --> 00:08:10.309
emissions metrics for climate change.


00:08:10.319 --> 00:08:12.390
They're calling for improved debris


00:08:12.400 --> 00:08:14.469
mitigation, coordinated traffic


00:08:14.479 --> 00:08:16.869
management, and stronger space weather


00:08:16.879 --> 00:08:18.790
resilience measures to protect the


00:08:18.800 --> 00:08:22.230
technology modern society depends on.


00:08:22.240 --> 00:08:24.869
Now, let's shift from orbital concerns


00:08:24.879 --> 00:08:27.110
to lunar mysteries.


00:08:27.120 --> 00:08:29.029
>> For decades, Anna, scientists have


00:08:29.039 --> 00:08:31.110
assumed that Earth's water was delivered


00:08:31.120 --> 00:08:33.110
by asteroids and comets during the late


00:08:33.120 --> 00:08:35.509
heavy bombardment about 4 billion years


00:08:35.519 --> 00:08:38.149
ago. But new research from lunar samples


00:08:38.159 --> 00:08:39.909
is challenging that assumption.


00:08:39.919 --> 00:08:42.469
>> The Apollo samples are still teaching us


00:08:42.479 --> 00:08:45.110
new things after all these years. What


00:08:45.120 --> 00:08:46.470
did they find?


00:08:46.480 --> 00:08:48.470
>> Dr. Tony Gargano at the Lunar and


00:08:48.480 --> 00:08:50.389
Planetary Institute led a team that


00:08:50.399 --> 00:08:52.870
analyzed lunar rocks and regalith using


00:08:52.880 --> 00:08:55.670
high precision triple oxygen isotopes.


00:08:55.680 --> 00:08:57.350
They found that meteorites could only


00:08:57.360 --> 00:08:58.949
have supplied a small fraction of


00:08:58.959 --> 00:09:01.430
Earth's water, even by the most generous


00:09:01.440 --> 00:09:03.990
estimates. The lunar surface record sets


00:09:04.000 --> 00:09:06.630
a hard limit on volatile delivery.


00:09:06.640 --> 00:09:08.949
>> Why is the moon such a good record


00:09:08.959 --> 00:09:10.230
keeper for this?


00:09:10.240 --> 00:09:12.470
>> On Earth, tectonic plates constantly


00:09:12.480 --> 00:09:14.550
renew the surface, erasing traces of


00:09:14.560 --> 00:09:16.949
ancient impacts. But the moon is airless


00:09:16.959 --> 00:09:19.110
and hasn't had geological activity for


00:09:19.120 --> 00:09:21.430
billions of years. So, its geological


00:09:21.440 --> 00:09:23.430
records since the late heavy bombardment


00:09:23.440 --> 00:09:25.509
has been carefully preserved. It's like


00:09:25.519 --> 00:09:27.430
a cosmic history book that hasn't been


00:09:27.440 --> 00:09:29.670
edited. How did they approach the


00:09:29.680 --> 00:09:31.670
analysis differently from previous


00:09:31.680 --> 00:09:32.630
studies?


00:09:32.640 --> 00:09:34.630
>> Instead of focusing on metal loving


00:09:34.640 --> 00:09:36.630
elements like previous researchers,


00:09:36.640 --> 00:09:39.590
Gargano's team analyzed oxygen isotopes


00:09:39.600 --> 00:09:41.509
which make up the largest mass fraction


00:09:41.519 --> 00:09:44.150
of rocks. The oxygen triple isotope


00:09:44.160 --> 00:09:46.230
signature can separate two things that


00:09:46.240 --> 00:09:48.630
are often confused in lunar regalith.


00:09:48.640 --> 00:09:50.630
The addition of impactor material and


00:09:50.640 --> 00:09:52.230
the effects of impact induced


00:09:52.240 --> 00:09:55.030
vaporization on isotopic composition.


00:09:55.040 --> 00:09:57.269
And what did the oxygen isotopes tell


00:09:57.279 --> 00:09:57.990
them?


00:09:58.000 --> 00:09:59.829
>> They found that at least 1% of the


00:09:59.839 --> 00:10:02.150
moon's mass consists of impact related


00:10:02.160 --> 00:10:04.389
material, likely from carbonatous


00:10:04.399 --> 00:10:06.470
meteorites that partially vaporized on


00:10:06.480 --> 00:10:09.110
impact. From this, they calculated that


00:10:09.120 --> 00:10:11.110
only a tiny amount of water has been


00:10:11.120 --> 00:10:13.030
delivered to the Earth moon system since


00:10:13.040 --> 00:10:15.030
the late heavy bombardment compared to


00:10:15.040 --> 00:10:16.550
Earth's existing water.


00:10:16.560 --> 00:10:18.710
>> To put that in perspective, how much


00:10:18.720 --> 00:10:21.750
water does Earth have? Water covers over


00:10:21.760 --> 00:10:24.470
71% of Earth's surface, but it only


00:10:24.480 --> 00:10:27.430
accounts for about 0.023%


00:10:27.440 --> 00:10:30.069
of Earth's total mass. That still works


00:10:30.079 --> 00:10:33.030
out to roughly 1.466


00:10:33.040 --> 00:10:38.069
kg. That's 1.46 followed by 21.


00:10:38.079 --> 00:10:39.990
So even a tiny fraction of that is


00:10:40.000 --> 00:10:40.949
significant.


00:10:40.959 --> 00:10:43.990
>> Co-author Dr. Justin Simon from NASA


00:10:44.000 --> 00:10:46.470
summed it up well. The results don't say


00:10:46.480 --> 00:10:49.350
meteorites delivered no water, but they


00:10:49.360 --> 00:10:51.910
do make it very hard for late meteorite


00:10:51.920 --> 00:10:54.150
delivery to be the dominant source of


00:10:54.160 --> 00:10:55.750
Earth's oceans.


00:10:55.760 --> 00:10:57.430
>> This has interesting implications for


00:10:57.440 --> 00:10:59.430
lunar exploration, doesn't it?


00:10:59.440 --> 00:11:02.150
>> Absolutely. While meteorites may have


00:11:02.160 --> 00:11:04.150
delivered only a tiny fraction of


00:11:04.160 --> 00:11:06.630
Earth's water, their contribution could


00:11:06.640 --> 00:11:09.350
be crucial for the moon. Water ice in


00:11:09.360 --> 00:11:11.430
permanently shadowed regions is


00:11:11.440 --> 00:11:13.590
essential for establishing a sustained


00:11:13.600 --> 00:11:15.670
human presence, providing drinking


00:11:15.680 --> 00:11:18.790
water, irrigation, radiation shielding,


00:11:18.800 --> 00:11:21.350
and the means to make rocket propellant.


00:11:21.360 --> 00:11:23.829
As the researchers noted, that small


00:11:23.839 --> 00:11:26.310
amount of water delivered by impacts


00:11:26.320 --> 00:11:28.550
could be the single most important


00:11:28.560 --> 00:11:31.350
factor enabling humanity's expansion


00:11:31.360 --> 00:11:34.230
into space. From water on the moon to


00:11:34.240 --> 00:11:36.389
mysteries in the early universe, let's


00:11:36.399 --> 00:11:38.949
talk about super massive black holes.


00:11:38.959 --> 00:11:42.470
>> How did black holes get so big so fast?


00:11:42.480 --> 00:11:44.389
That's been one of astronomy's great


00:11:44.399 --> 00:11:46.710
mysteries, Avery. And researchers at


00:11:46.720 --> 00:11:49.430
Ireland's May University have found an


00:11:49.440 --> 00:11:50.230
answer.


00:11:50.240 --> 00:11:52.389
>> The James Webb Space Telescope has been


00:11:52.399 --> 00:11:54.230
finding these massive black holes in the


00:11:54.240 --> 00:11:55.990
early universe that shouldn't exist


00:11:56.000 --> 00:11:58.310
according to our previous models. Right.


00:11:58.320 --> 00:12:01.430
>> Exactly. These super massive black holes


00:12:01.440 --> 00:12:03.990
existed just a few hundred million years


00:12:04.000 --> 00:12:06.230
after the big bang and conventional


00:12:06.240 --> 00:12:08.150
theories said there wasn't enough time


00:12:08.160 --> 00:12:11.430
for them to grow so large. The May team


00:12:11.440 --> 00:12:14.949
led by PhD candidate Daxel Ma used


00:12:14.959 --> 00:12:17.430
state-of-the-art computer simulations to


00:12:17.440 --> 00:12:18.949
reveal what happened


00:12:18.959 --> 00:12:21.509
>> and what did they discover? The chaotic


00:12:21.519 --> 00:12:23.350
conditions in the early universe


00:12:23.360 --> 00:12:25.670
triggered these smaller black holes to


00:12:25.680 --> 00:12:28.550
undergo what they call a feeding frenzy,


00:12:28.560 --> 00:12:31.430
devouring material all around them. The


00:12:31.440 --> 00:12:33.910
dense gas-rich environments in early


00:12:33.920 --> 00:12:36.389
galaxies enabled something called


00:12:36.399 --> 00:12:38.790
superdington accretion.


00:12:38.800 --> 00:12:41.190
>> Super Edington accretion. That sounds


00:12:41.200 --> 00:12:42.389
intense. What is it?


00:12:42.399 --> 00:12:45.030
>> It's when a black hole eats matter


00:12:45.040 --> 00:12:47.590
faster than what's considered normal or


00:12:47.600 --> 00:12:50.790
safe. Normally, when matter falls into a


00:12:50.800 --> 00:12:53.110
black hole that quickly, it should blow


00:12:53.120 --> 00:12:55.910
the food away with radiation pressure.


00:12:55.920 --> 00:12:58.550
But somehow, in these early dense


00:12:58.560 --> 00:13:00.949
environments, the black holes kept


00:13:00.959 --> 00:13:04.470
eating anyway, growing incredibly fast


00:13:04.480 --> 00:13:07.509
into tens of thousands of times the mass


00:13:07.519 --> 00:13:08.629
of our sun.


00:13:08.639 --> 00:13:10.470
>> So, they found the missing link between


00:13:10.480 --> 00:13:12.790
the first stars and later super massive


00:13:12.800 --> 00:13:13.990
black holes.


00:13:14.000 --> 00:13:17.269
>> Yes, black holes come in two main seed


00:13:17.279 --> 00:13:19.750
types. light seeds, which start at only


00:13:19.760 --> 00:13:22.150
about 10 to a few hundred times the mass


00:13:22.160 --> 00:13:24.870
of our sun, and heavy seeds, which can


00:13:24.880 --> 00:13:28.389
start at up to 100,000 solar masses.


00:13:28.399 --> 00:13:30.310
Previously, astronomers thought you


00:13:30.320 --> 00:13:33.430
needed those rare heavy seeds to explain


00:13:33.440 --> 00:13:35.750
super massive black holes. But this


00:13:35.760 --> 00:13:37.990
research shows that common light seed


00:13:38.000 --> 00:13:40.710
black holes can grow at extreme rates


00:13:40.720 --> 00:13:42.389
under the right conditions.


00:13:42.399 --> 00:13:44.389
>> Dr. John Regan from the team put it


00:13:44.399 --> 00:13:46.550
perfectly when he said, "Heavy seeds are


00:13:46.560 --> 00:13:48.790
somewhat exotic and may need rare


00:13:48.800 --> 00:13:50.389
conditions to form, but their


00:13:50.399 --> 00:13:52.550
simulations show that garden variety


00:13:52.560 --> 00:13:54.550
stellar mass black holes can grow at


00:13:54.560 --> 00:13:56.949
extreme rates in the early universe."


00:13:56.959 --> 00:13:59.350
>> This has implications beyond just


00:13:59.360 --> 00:14:01.509
understanding the past. The research


00:14:01.519 --> 00:14:03.829
team noted that future gravitational


00:14:03.839 --> 00:14:06.470
wave observations from the LISA mission


00:14:06.480 --> 00:14:09.590
scheduled to launch in 2035 may be able


00:14:09.600 --> 00:14:12.230
to detect the mergers of these tiny


00:14:12.240 --> 00:14:15.509
early rapidly growing baby black holes.


00:14:15.519 --> 00:14:17.750
It's exciting to think we might actually


00:14:17.760 --> 00:14:20.310
observe these processes directly. From


00:14:20.320 --> 00:14:22.710
black holes to exoplanets, let's close


00:14:22.720 --> 00:14:24.949
with our final story about AI hunting


00:14:24.959 --> 00:14:27.829
for new worlds. Anna, we found over


00:14:27.839 --> 00:14:30.389
6,000 exoplanets so far with more than


00:14:30.399 --> 00:14:32.550
half discovered using data from NASA's


00:14:32.560 --> 00:14:34.710
Kepler and test missions, but there's


00:14:34.720 --> 00:14:36.550
still a treasure trove of data waiting


00:14:36.560 --> 00:14:38.230
to be analyzed. And that's where


00:14:38.240 --> 00:14:40.310
artificial intelligence comes in.


00:14:40.320 --> 00:14:42.710
>> I remember hearing about Exomminer back


00:14:42.720 --> 00:14:45.910
in 2021. Is that what this is about?


00:14:45.920 --> 00:14:48.870
>> Exactly. The team at NASA's AS research


00:14:48.880 --> 00:14:51.829
center created exomminer, which used AI


00:14:51.839 --> 00:14:55.189
to validate 370 new exoplanets from


00:14:55.199 --> 00:14:57.350
Kepler data. Now, they've released


00:14:57.360 --> 00:15:00.470
Exomminer Plus+ trained on both Kepler


00:15:00.480 --> 00:15:02.710
and test data, and the results are


00:15:02.720 --> 00:15:03.750
impressive.


00:15:03.760 --> 00:15:05.509
>> What can the new version do?


00:15:05.519 --> 00:15:07.990
>> On its initial run of test data, Exom


00:15:08.000 --> 00:15:11.269
Miner++ identified 7,000 targets as


00:15:11.279 --> 00:15:13.670
exoplanet candidates. These are signals


00:15:13.680 --> 00:15:15.509
that are likely to be planets, but


00:15:15.519 --> 00:15:17.269
require follow-up observations to


00:15:17.279 --> 00:15:19.430
confirm. The software sifts through


00:15:19.440 --> 00:15:22.150
observations of possible transits, those


00:15:22.160 --> 00:15:24.310
tiny dips in starlight when a planet


00:15:24.320 --> 00:15:26.310
passes in front of its host star, and


00:15:26.320 --> 00:15:28.310
predicts which ones are real planets


00:15:28.320 --> 00:15:30.550
versus other phenomena like eclipsing


00:15:30.560 --> 00:15:31.750
binary stars.


00:15:31.760 --> 00:15:34.389
>> And this is all open-source software.


00:15:34.399 --> 00:15:36.710
>> Yes, anyone can download it from GitHub


00:15:36.720 --> 00:15:38.870
and use it to hunt for planets in TESS's


00:15:38.880 --> 00:15:41.110
growing public data archive. Kevin


00:15:41.120 --> 00:15:43.110
Murphy, NASA's chief science data


00:15:43.120 --> 00:15:45.189
officer, emphasized that open-source


00:15:45.199 --> 00:15:47.590
software like Exom Minor accelerates


00:15:47.600 --> 00:15:49.829
scientific discovery. When researchers


00:15:49.839 --> 00:15:52.310
freely share their tools, it lets others


00:15:52.320 --> 00:15:54.310
replicate results and dig deeper into


00:15:54.320 --> 00:15:55.110
the data.


00:15:55.120 --> 00:15:58.310
>> What makes Exomminer Plus+ particularly


00:15:58.320 --> 00:15:59.350
effective?


00:15:59.360 --> 00:16:01.749
>> Miguel Martinho, the co-investigator,


00:16:01.759 --> 00:16:03.749
explains that when you have hundreds of


00:16:03.759 --> 00:16:05.749
thousands of signals like this, it's the


00:16:05.759 --> 00:16:07.670
ideal place to deploy deep learning


00:16:07.680 --> 00:16:10.470
technologies. Despite Kepler and TESS


00:16:10.480 --> 00:16:12.550
operating differently, TESS surveys


00:16:12.560 --> 00:16:14.710
nearly the whole sky looking for planets


00:16:14.720 --> 00:16:17.030
around nearby stars, while Kepler looked


00:16:17.040 --> 00:16:19.350
at a small patch of sky more deeply. The


00:16:19.360 --> 00:16:21.269
two missions produce compatible data


00:16:21.279 --> 00:16:24.069
sets. This allows Exomminer Plus+ to


00:16:24.079 --> 00:16:25.990
train on both and deliver strong


00:16:26.000 --> 00:16:27.030
results.


00:16:27.040 --> 00:16:29.509
>> Project lead Jameid again said it


00:16:29.519 --> 00:16:32.069
perfectly. With not many resources, they


00:16:32.079 --> 00:16:34.389
can make a lot of returns. What's next


00:16:34.399 --> 00:16:36.550
for the program? The team is working on


00:16:36.560 --> 00:16:38.710
giving the model the ability to identify


00:16:38.720 --> 00:16:41.350
transit signals themselves from raw data


00:16:41.360 --> 00:16:42.949
rather than just evaluating


00:16:42.959 --> 00:16:45.269
pre-identified candidates. And looking


00:16:45.279 --> 00:16:47.910
ahead, NASA's Nancy Grace Roman Space


00:16:47.920 --> 00:16:50.069
Telescope will capture tens of thousands


00:16:50.079 --> 00:16:52.470
of exoplanet transits starting in a few


00:16:52.480 --> 00:16:54.629
years. And all that data will be freely


00:16:54.639 --> 00:16:56.870
available, too. The advances made with


00:16:56.880 --> 00:16:58.949
Exomminer could help hunt for planets in


00:16:58.959 --> 00:17:00.470
Roman data as well.


00:17:00.480 --> 00:17:02.949
>> Exoplanet scientist John Jenkins summed


00:17:02.959 --> 00:17:05.350
it up beautifully. Open source science


00:17:05.360 --> 00:17:07.429
and open-source software are why the


00:17:07.439 --> 00:17:09.750
exoplanet field is advancing as quickly


00:17:09.760 --> 00:17:12.150
as it is. It's a great reminder of how


00:17:12.160 --> 00:17:14.870
collaboration and shared resources drive


00:17:14.880 --> 00:17:15.829
discovery.


00:17:15.839 --> 00:17:18.069
>> And that's all we have time for today.


00:17:18.079 --> 00:17:20.230
What a day of space news, Anna. From


00:17:20.240 --> 00:17:22.870
legacy keepsakes heading to the moon to


00:17:22.880 --> 00:17:25.110
urgent warnings about orbital debris to


00:17:25.120 --> 00:17:27.909
AI discovering thousands of new worlds


00:17:27.919 --> 00:17:30.470
>> and everything in between. New insights


00:17:30.480 --> 00:17:32.950
about Earth's water, the rapid growth of


00:17:32.960 --> 00:17:35.190
super massive black holes, and Blue


00:17:35.200 --> 00:17:37.430
Origin's expanding launch manifest.


00:17:37.440 --> 00:17:39.270
Space exploration continues to


00:17:39.280 --> 00:17:41.350
accelerate on multiple fronts.


00:17:41.360 --> 00:17:42.789
>> That's it for today's episode of


00:17:42.799 --> 00:17:44.710
Astronomy Daily. Thanks for joining us,


00:17:44.720 --> 00:17:46.789
and we'll see you tomorrow. Keep looking


00:17:46.799 --> 00:17:47.510
up.


00:17:47.520 --> 00:17:51.830
>> Clear skies, everyone. Astronomy day.


00:17:51.840 --> 00:18:00.070
The stories be told.


00:18:00.080 --> 00:18:03.799
Stories told.