June 3, 2026

From Rocket Ruins to Cosmic Discoveries: Blue Origin’s Resilience and New Magnetic Insights

From Rocket Ruins to Cosmic Discoveries: Blue Origin’s Resilience and New Magnetic Insights
From Rocket Ruins to Cosmic Discoveries: Blue Origin’s Resilience and New Magnetic Insights
Space News Today
From Rocket Ruins to Cosmic Discoveries: Blue Origin’s Resilience and New Magnetic Insights

In today's Astronomy Daily, Anna and Avery cover six major stories: Blue Origin CEO Dave Limp pledges New Glenn will fly again before year's end despite last week's launchpad explosion; astronomers announce the first direct evidence of magnetic fields on exoplanets using Hot Jupiter wind data; NASA's Roman Space Telescope clears its final mirror inspection ahead of a September 2026 launch; SpaceX wins a $4.16 billion Space Force contract for an airborne threat-tracking satellite constellation; a reflection on the lasting scientific legacy of interstellar comet 3I/ATLAS; and Hungarian researchers publish the definitive mass boundary between neutron stars and black holes at 2.2–2.3 solar masses. Stories Covered • Blue Origin New Glenn explosion aftermath — CEO Dave Limp confirms damage is less severe than feared, pledges return to flight before end of 2026 • First direct evidence of exoplanet magnetic fields — Nature Astronomy, June 2, 2026 — ESO VLT and Gemini North study of seven Hot Jupiter wind speeds • NASA Roman Space Telescope primary mirror passes final Earth-side inspection — September 2026 launch target confirmed • SpaceX $4.16 billion US Space Force SB-AMTI contract — threat-tracking satellite constellation targeting 2028 operational capability • 3I/ATLAS scientific legacy — new analysis on what the interstellar comet reveals about solar system formation across the Milky Way • Neutron star mass limit defined at 2.2–2.3 solar masses — HUN-REN Wigner Research Centre for Physics, Hungary Key Terms Explained • Hot Jupiter: A gas giant exoplanet similar in size to Jupiter, orbiting very close to its host star, typically tidally locked • Magnetic field: An invisible force field generated by electrically conducting material moving inside a planet, critical for atmospheric protection • Lagrange point 2 (L2): A gravitationally stable point in space approximately 1.5 million kilometres from Earth, opposite the Sun — home to both JWST and (soon) Roman • SB-AMTI: Space-Based Airborne Moving Target Indicator — a satellite constellation for tracking airborne threats from orbit • Neutron star: The ultra-dense remnant of a collapsed massive star, composed almost entirely of neutrons • 3I/ATLAS: Third confirmed interstellar object, discovered July 2025; an active comet from outside our solar system • Deuterium: A heavy isotope of hydrogen containing one neutron; its abundance in 3I/ATLAS water suggests formation in an extremely cold environment


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WEBVTT
Kind: captions
Language: en

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Last week, a rocket exploded on its


00:00:02.480 --> 00:00:04.470
launch pad in Cape Canaveral. The


00:00:04.480 --> 00:00:07.190
fireball could be seen from miles. This


00:00:07.200 --> 00:00:09.910
week, the CEO of Blue Origin looked at


00:00:09.920 --> 00:00:12.549
the wreckage and said five words, "We


00:00:12.559 --> 00:00:15.589
will fly again this year." That story,


00:00:15.599 --> 00:00:17.830
plus magnetic fields discovered on


00:00:17.840 --> 00:00:20.310
distant worlds, a space telescope


00:00:20.320 --> 00:00:22.870
moments from launch, and the definitive


00:00:22.880 --> 00:00:25.269
answer to one of astronomy's oldest


00:00:25.279 --> 00:00:28.630
questions. This is Astronomy Daily.


00:00:28.640 --> 00:00:31.109
Hello and welcome to Astronomy Daily,


00:00:31.119 --> 00:00:32.950
your daily guide to the universe and


00:00:32.960 --> 00:00:34.790
everything in it. I'm Avery.


00:00:34.800 --> 00:00:37.190
>> And I'm Anna. It is Wednesday, the 4th


00:00:37.200 --> 00:00:40.310
of June, 2026. And we have an


00:00:40.320 --> 00:00:42.630
exceptional episode lined up today.


00:00:42.640 --> 00:00:45.270
>> We do. Six stories ranging from a


00:00:45.280 --> 00:00:47.270
dramatic comeback story in the world of


00:00:47.280 --> 00:00:49.670
commercial space flight to a scientific


00:00:49.680 --> 00:00:51.670
first that reshapes what we know about


00:00:51.680 --> 00:00:54.389
planets beyond our solar system. If


00:00:54.399 --> 00:00:55.990
you've been listening this week, you'll


00:00:56.000 --> 00:00:57.910
know Blue Origin had a very bad


00:00:57.920 --> 00:00:59.830
Thursday. We'll have a full update on


00:00:59.840 --> 00:01:02.389
what comes next, but let's get into it.


00:01:02.399 --> 00:01:04.789
>> Last Thursday night at Cape Canaveral,


00:01:04.799 --> 00:01:07.670
Blue Origin's New Glenn rocket exploded


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on its launchpad during a routine


00:01:09.600 --> 00:01:12.310
pre-launch hotfire test. The fireball


00:01:12.320 --> 00:01:15.510
engulfed launch complex 36. Debris was


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found up to half a mile away. It was the


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biggest and most public failure in the


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company's history. And many observers


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feared the road back could take years.


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>> But as of this week, Blue Origin CEO


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Dave Limp is pushing back hard on that


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narrative. He's saying that damage is


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far less catastrophic than it looked.


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>> Limp posted a detailed update on X in


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which he said that now that teams have


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gained full access to the pad, there's


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actually some good news. The propellant


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storage infrastructure, the oxygen


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tanks, the liquid hydrogen storage, and


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the cryogenic methane tanks all came


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through the blast in good shape. He


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called that extremely fortunate because


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those are very long lead items to


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replace. The water tower also survived.


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The main support gantry is damaged, but


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crucially limp says it can be repaired


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in place. It doesn't need to be torn


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down and rebuilt from scratch. Perhaps


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most importantly, there are spare


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assets. The previously flown New Glenn


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booster, nicknamed Never Tell Me the


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Odds, along with three upper stages


00:02:20.319 --> 00:02:21.990
stored in a neighboring integration


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facility, all appear undamaged.


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>> As for the cause of the explosion,


00:02:26.800 --> 00:02:29.030
there's still no official word. The test


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was not within the scope of FAA license


00:02:31.360 --> 00:02:33.589
activities, so the FAA won't be leading


00:02:33.599 --> 00:02:35.750
the investigation. Blue Origin is


00:02:35.760 --> 00:02:38.470
conducting its own assessment. LIMP also


00:02:38.480 --> 00:02:40.550
used the moment to announce a strategic


00:02:40.560 --> 00:02:42.710
pivot. The company had already been


00:02:42.720 --> 00:02:44.790
working on eliminating the need for a


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transporter erector, the massive


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structure used to move and stand the


00:02:49.040 --> 00:02:51.670
rocket upright. He said Blue Origin will


00:02:51.680 --> 00:02:53.830
now skip straight to an alternative


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vertical launch concept, which means


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they don't need to build a replacement


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for the one destroyed during the


00:02:59.040 --> 00:03:01.589
explosion. And he closed his statement


00:03:01.599 --> 00:03:05.270
with Blue Origins motto gradum feroc


00:03:05.280 --> 00:03:08.710
which means stepby step ferociously and


00:03:08.720 --> 00:03:11.509
the declaration we will fly again before


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the end of this year.


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>> That's an aggressive timeline by any


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measure. But it's the kind of defiant


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pledge investors, customers, and the


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broader space industry needed to hear.


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Patrick Space Force Base has cleared


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Blue Origin to begin its full damage


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assessment of launch complex 36. Though


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the formal rebuilding process is now


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underway,


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>> we will of course keep tracking the


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story as it develops.


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>> Now, let's move from the dramatic to the


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extraordinary. Scientists have just


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published what they're calling the first


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direct evidence that planets beyond our


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solar system possess magnetic fields,


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and they found it by studying the wind.


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>> This is a remarkable piece of science. A


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team of astronomers used two of the


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world's most powerful groundbased


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telescopes, the ESO's Very Large


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Telescope in Chile and the Gemini North


00:04:01.519 --> 00:04:03.589
telescope in Hawaii to measure wind


00:04:03.599 --> 00:04:06.070
speeds on seven so-called hot Jupiter


00:04:06.080 --> 00:04:09.670
exoplanets. Hot Jupiters are gas giants


00:04:09.680 --> 00:04:11.830
roughly the size of Jupiter, but


00:04:11.840 --> 00:04:14.149
orbiting extremely close to their host


00:04:14.159 --> 00:04:17.110
stars, far closer than Mercury is to our


00:04:17.120 --> 00:04:19.830
sun. Because they're tidily locked,


00:04:19.840 --> 00:04:21.830
always showing the same face to their


00:04:21.840 --> 00:04:24.950
star. One side is perpetually scorching


00:04:24.960 --> 00:04:28.310
hot and the other is freezing cold. That


00:04:28.320 --> 00:04:30.469
temperature difference creates powerful


00:04:30.479 --> 00:04:32.950
winds that howl from the day side to the


00:04:32.960 --> 00:04:34.070
night side.


00:04:34.080 --> 00:04:35.990
>> The researchers measured those wind


00:04:36.000 --> 00:04:37.909
speeds and found something totally


00:04:37.919 --> 00:04:40.469
counterintuitive. On the hotter planets,


00:04:40.479 --> 00:04:42.870
the winds were actually slower. And that


00:04:42.880 --> 00:04:44.710
is the opposite of what standard physics


00:04:44.720 --> 00:04:45.830
would predict.


00:04:45.840 --> 00:04:48.390
>> If you have more thermal energy, you'd


00:04:48.400 --> 00:04:51.189
expect stronger winds. But these planets


00:04:51.199 --> 00:04:53.430
are pumping the brakes. And the best


00:04:53.440 --> 00:04:55.670
explanation, the one that actually fits


00:04:55.680 --> 00:04:58.310
the data, is magnetic fields.


00:04:58.320 --> 00:05:00.390
>> A magnetic field can interact with the


00:05:00.400 --> 00:05:02.469
electrically charged gas in a planet's


00:05:02.479 --> 00:05:04.710
upper atmosphere and slow those winds


00:05:04.720 --> 00:05:07.110
down. The stronger the magnetic field,


00:05:07.120 --> 00:05:09.430
the greater the breaking effect. The


00:05:09.440 --> 00:05:11.430
team inferred magnetic field strengths


00:05:11.440 --> 00:05:14.390
ranging up to four times that of Saturn


00:05:14.400 --> 00:05:16.390
and up to about half the strength of


00:05:16.400 --> 00:05:18.790
Jupiter's field. The wind speeds


00:05:18.800 --> 00:05:21.430
themselves were extraordinary. They


00:05:21.440 --> 00:05:25.110
ranged from around 7,000 km hour up to


00:05:25.120 --> 00:05:28.310
more than 25,000 kmh.


00:05:28.320 --> 00:05:30.629
For context, the fastest winds measured


00:05:30.639 --> 00:05:34.950
on Jupiter reach about 1,500 kmh.


00:05:34.960 --> 00:05:37.189
These are winds on a scale we simply


00:05:37.199 --> 00:05:39.830
don't see in our own solar system. The


00:05:39.840 --> 00:05:41.510
results were published in the journal


00:05:41.520 --> 00:05:44.469
Nature Astronomy on June 2nd, and the


00:05:44.479 --> 00:05:46.469
implications go well beyond just knowing


00:05:46.479 --> 00:05:49.029
that other planets have magnetic fields.


00:05:49.039 --> 00:05:50.950
Magnetic fields are thought to play a


00:05:50.960 --> 00:05:52.950
critical role in protecting planetary


00:05:52.960 --> 00:05:54.870
atmospheres from being stripped away by


00:05:54.880 --> 00:05:57.270
stellar radiation, which is one of the


00:05:57.280 --> 00:05:59.270
key factors in whether a planet could


00:05:59.280 --> 00:06:01.749
over billions of years potentially


00:06:01.759 --> 00:06:04.469
remain habitable. As the lead researcher


00:06:04.479 --> 00:06:07.029
put it, this is a key step toward


00:06:07.039 --> 00:06:09.270
ultimately understanding which planets


00:06:09.280 --> 00:06:11.990
can stay alive, keep their water, and


00:06:12.000 --> 00:06:14.870
perhaps even one day host life as we


00:06:14.880 --> 00:06:15.909
know it.


00:06:15.919 --> 00:06:19.029
>> A genuinely landmark result. Our next


00:06:19.039 --> 00:06:21.510
story takes us to NASA's Gddard Space


00:06:21.520 --> 00:06:23.830
Flight Center in Greenb Belt, Maryland,


00:06:23.840 --> 00:06:26.070
where engineers have completed what they


00:06:26.080 --> 00:06:29.029
describe as the last look humanity will


00:06:29.039 --> 00:06:31.270
ever take on a critical piece of


00:06:31.280 --> 00:06:33.830
hardware before it becomes the eyes of


00:06:33.840 --> 00:06:35.990
humanity on the universe.


00:06:36.000 --> 00:06:37.990
>> We're talking about the Nancy Grace


00:06:38.000 --> 00:06:40.629
Roman Space Telescope and specifically


00:06:40.639 --> 00:06:45.430
its primary mirror, a 2.4 4 meter 7.9 ft


00:06:45.440 --> 00:06:47.590
reflector that will be the heart of the


00:06:47.600 --> 00:06:50.070
instrument once it launches into space.


00:06:50.080 --> 00:06:53.189
>> On May 20th and 21st, engineers


00:06:53.199 --> 00:06:55.990
performed a meticulous final inspection.


00:06:56.000 --> 00:06:58.710
They tilted the entire observatory onto


00:06:58.720 --> 00:07:01.110
its side, deployed the protective hood


00:07:01.120 --> 00:07:03.270
that will be stowed during launch, and


00:07:03.280 --> 00:07:05.749
used a highresolution camera with a


00:07:05.759 --> 00:07:08.150
powerful zoom lens to do a thorough


00:07:08.160 --> 00:07:10.550
multi-purpose check, looking for any


00:07:10.560 --> 00:07:12.469
particles that may have settled on the


00:07:12.479 --> 00:07:14.710
mirror surface during testing and


00:07:14.720 --> 00:07:16.629
confirming that the optical alignment


00:07:16.639 --> 00:07:18.150
hadn't shifted.


00:07:18.160 --> 00:07:21.189
>> It passed with flying colors, no specks,


00:07:21.199 --> 00:07:23.749
no misalignment. The mirror silver


00:07:23.759 --> 00:07:27.270
coating, which is just 400 nanome thick,


00:07:27.280 --> 00:07:29.110
hundreds of times thinner than a human


00:07:29.120 --> 00:07:31.270
hair, is perfect.


00:07:31.280 --> 00:07:33.830
>> The Roman telescope manager at Goddard,


00:07:33.840 --> 00:07:36.230
J. Scott Smith, marked the moment


00:07:36.240 --> 00:07:38.550
beautifully. He said, "The Roman


00:07:38.560 --> 00:07:40.629
engineering team laid eyes on the


00:07:40.639 --> 00:07:43.350
telescope for the final time before it


00:07:43.360 --> 00:07:46.309
in turn becomes the eyes of humanity,


00:07:46.319 --> 00:07:48.950
revealing the wonders of the cosmos."


00:07:48.960 --> 00:07:51.510
That's a sentence worth sitting with.


00:07:51.520 --> 00:07:53.749
With this milestone complete, Roman will


00:07:53.759 --> 00:07:55.589
now be shipped to Kennedy Space Center


00:07:55.599 --> 00:07:57.430
in Florida in preparation for its


00:07:57.440 --> 00:07:59.510
planned launch, currently scheduled for


00:07:59.520 --> 00:08:02.150
as early as September 2026.


00:08:02.160 --> 00:08:04.710
>> Once in space, Roman will travel to the


00:08:04.720 --> 00:08:08.469
Sun Earth Lrange point 2, known as L2,


00:08:08.479 --> 00:08:10.390
the same orbital neighborhood where the


00:08:10.400 --> 00:08:12.950
James Web Space Telescope operates. It


00:08:12.960 --> 00:08:15.270
will join the most exclusive telescope


00:08:15.280 --> 00:08:17.350
real estate in the solar system.


00:08:17.360 --> 00:08:19.749
>> And Roman's scientific ambitions are


00:08:19.759 --> 00:08:22.070
extraordinary. It will have a field of


00:08:22.080 --> 00:08:24.710
view at least 100 times larger than the


00:08:24.720 --> 00:08:26.790
Hubble Space Telescope, potentially


00:08:26.800 --> 00:08:28.950
measuring light from a billion galaxies


00:08:28.960 --> 00:08:31.270
over its lifetime. It will also be


00:08:31.280 --> 00:08:33.750
capable of directly imaging exoplanets


00:08:33.760 --> 00:08:36.389
by blocking out starlight and conducting


00:08:36.399 --> 00:08:38.790
a comprehensive statistical census of


00:08:38.800 --> 00:08:41.430
planetary systems across our galaxy.


00:08:41.440 --> 00:08:43.750
>> We are getting very close to launch.


00:08:43.760 --> 00:08:45.829
September can't come soon enough.


00:08:45.839 --> 00:08:47.350
>> We'll be right back after this short


00:08:47.360 --> 00:08:49.350
break for a word from our sponsors. Stay


00:08:49.360 --> 00:08:51.750
with us. And we're back. Three more


00:08:51.760 --> 00:08:53.590
stories to go and they are all


00:08:53.600 --> 00:08:54.710
fascinating.


00:08:54.720 --> 00:08:56.949
>> Space Force has made a very large


00:08:56.959 --> 00:08:59.990
investment in SpaceX. On May 29th, the


00:09:00.000 --> 00:09:02.230
US Space Force announced it had awarded


00:09:02.240 --> 00:09:06.230
Elon Musk's company a $4.16 billion


00:09:06.240 --> 00:09:08.230
contract for a program called the


00:09:08.240 --> 00:09:10.790
Spacebased Airborne Moving Target


00:09:10.800 --> 00:09:13.750
Indicator, or SBMTI.


00:09:13.760 --> 00:09:15.829
In plain language, the goal is to build


00:09:15.839 --> 00:09:17.829
a constellation of satellites that can


00:09:17.839 --> 00:09:19.829
track and target airborne threats from


00:09:19.839 --> 00:09:22.070
orbit. Things like aircraft, cruise


00:09:22.080 --> 00:09:24.389
missiles, and other fast-moving threats


00:09:24.399 --> 00:09:26.710
anywhere on Earth at any time. The


00:09:26.720 --> 00:09:28.550
satellites are designed to fill a gap


00:09:28.560 --> 00:09:30.389
that currently exists in military


00:09:30.399 --> 00:09:32.870
surveillance. Traditionally, the US


00:09:32.880 --> 00:09:35.190
military uses aircraft, particularly


00:09:35.200 --> 00:09:37.910
Awoks planes, to track airborne targets,


00:09:37.920 --> 00:09:39.829
but satellites can reach areas where


00:09:39.839 --> 00:09:42.310
it's too dangerous to fly, and they can


00:09:42.320 --> 00:09:44.070
maintain persistent coverage that


00:09:44.080 --> 00:09:46.389
aircraft simply can't match. The


00:09:46.399 --> 00:09:47.829
contract is part of the Trump


00:09:47.839 --> 00:09:49.910
administration's broader Golden Dome


00:09:49.920 --> 00:09:51.910
missile defense initiative, which aims


00:09:51.920 --> 00:09:53.750
to build a layered national defense


00:09:53.760 --> 00:09:55.590
system, including groundbased


00:09:55.600 --> 00:09:58.070
interceptors, enhanced radar networks,


00:09:58.080 --> 00:10:01.030
and now this space-based tracking layer.


00:10:01.040 --> 00:10:03.590
>> SpaceX isn't the only company involved.


00:10:03.600 --> 00:10:05.509
Base Force confirmed there are nine


00:10:05.519 --> 00:10:08.389
companies in the SBA MTI vendor pool,


00:10:08.399 --> 00:10:10.230
though the identities of the other eight


00:10:10.240 --> 00:10:12.070
have not been made public for national


00:10:12.080 --> 00:10:14.310
security reasons. More contracts are


00:10:14.320 --> 00:10:16.069
expected to be issued over the coming


00:10:16.079 --> 00:10:16.630
year.


00:10:16.640 --> 00:10:18.389
>> The goal is to have an initial


00:10:18.399 --> 00:10:20.069
operational constellation of these


00:10:20.079 --> 00:10:23.269
satellites in place by 2028. This


00:10:23.279 --> 00:10:25.350
contract was also accompanied by a


00:10:25.360 --> 00:10:28.949
separate $2.29 billion Space Force award


00:10:28.959 --> 00:10:31.590
to SpaceX earlier in the week for a


00:10:31.600 --> 00:10:34.150
space data network backbone, a secure


00:10:34.160 --> 00:10:35.990
high-speed military communication


00:10:36.000 --> 00:10:38.790
system. In total, SpaceX received over


00:10:38.800 --> 00:10:41.990
$6.5 billion in Space Force contracts in


00:10:42.000 --> 00:10:44.230
a single week. For a company that is


00:10:44.240 --> 00:10:45.910
also preparing for what could be the


00:10:45.920 --> 00:10:48.630
largest IPO in stock market history,


00:10:48.640 --> 00:10:50.389
it's been quite a week in Hawthorne,


00:10:50.399 --> 00:10:51.269
California.


00:10:51.279 --> 00:10:53.509
>> Now, an update about a visitor that has


00:10:53.519 --> 00:10:55.750
already left, but whose influence is


00:10:55.760 --> 00:10:57.910
still being felt across the astronomy


00:10:57.920 --> 00:11:00.550
community. 3i/Atlas,


00:11:00.560 --> 00:11:02.630
the third interstellar object ever


00:11:02.640 --> 00:11:04.470
confirmed to pass through our solar


00:11:04.480 --> 00:11:07.670
system. Discovered on July 1st, 2025 by


00:11:07.680 --> 00:11:10.069
the Atlas telescope network in Chile, it


00:11:10.079 --> 00:11:11.990
is now heading back out into the deep


00:11:12.000 --> 00:11:14.069
galaxy, never to return.


00:11:14.079 --> 00:11:15.910
>> But the scientific conversation it


00:11:15.920 --> 00:11:18.389
sparked is very much alive. A new


00:11:18.399 --> 00:11:20.470
analysis published this week explores


00:11:20.480 --> 00:11:22.710
the way that 3II/Atlas


00:11:22.720 --> 00:11:24.230
has prompted astronomers to


00:11:24.240 --> 00:11:26.150
fundamentally update what they


00:11:26.160 --> 00:11:28.630
understand, not just about foreign solar


00:11:28.640 --> 00:11:31.110
systems, but about our own. Let's do a


00:11:31.120 --> 00:11:32.790
quick recap for listeners who may have


00:11:32.800 --> 00:11:35.269
joined us since the main three/atlas


00:11:35.279 --> 00:11:37.509
coverage last year. This was an


00:11:37.519 --> 00:11:39.910
extraordinary object. It was only the


00:11:39.920 --> 00:11:41.750
third interstellar visitor ever


00:11:41.760 --> 00:11:44.870
confirmed after 1/uamua


00:11:44.880 --> 00:11:49.430
in 2017 and 2i/ Boris in 2019. But


00:11:49.440 --> 00:11:52.870
unlike those two, 3/ Atlas was clearly


00:11:52.880 --> 00:11:55.670
an active comet, releasing dust and gas


00:11:55.680 --> 00:11:57.990
with multiple tails and a nucleus


00:11:58.000 --> 00:11:59.910
estimated at somewhere between a few


00:11:59.920 --> 00:12:02.150
hundred meters and several kilome


00:12:02.160 --> 00:12:04.870
across. It passed closest to the sun in


00:12:04.880 --> 00:12:07.990
late October 2025, then flew by Mars,


00:12:08.000 --> 00:12:10.949
then Jupiter in March 2026, and is now


00:12:10.959 --> 00:12:13.269
departing. But even as it fades, the


00:12:13.279 --> 00:12:15.190
data it generated continues to be


00:12:15.200 --> 00:12:17.590
analyzed. One of the most striking


00:12:17.600 --> 00:12:19.509
findings came from a University of


00:12:19.519 --> 00:12:21.509
Michigan study that examined the water


00:12:21.519 --> 00:12:24.550
ice in three ice/ Atlas and found it


00:12:24.560 --> 00:12:26.710
contained an extraordinarily high


00:12:26.720 --> 00:12:29.590
concentration of dutyium, heavy isotope


00:12:29.600 --> 00:12:31.829
of hydrogen that is far less common in


00:12:31.839 --> 00:12:34.310
comets from our own solar system. That


00:12:34.320 --> 00:12:36.629
suggests three/las


00:12:36.639 --> 00:12:38.310
formed in an environment that was


00:12:38.320 --> 00:12:40.790
dramatically colder and more isolated


00:12:40.800 --> 00:12:42.550
than the conditions that shaped our


00:12:42.560 --> 00:12:45.430
solar systems comets. Researchers have


00:12:45.440 --> 00:12:47.829
since traced its likely origin to a


00:12:47.839 --> 00:12:50.389
cold, dark corner of the Milky Way that


00:12:50.399 --> 00:12:52.310
had not yet fully assembled into a


00:12:52.320 --> 00:12:54.629
planetary system when this object


00:12:54.639 --> 00:12:57.509
formed, potentially making it up to 11


00:12:57.519 --> 00:12:59.910
billion years old, more than twice the


00:12:59.920 --> 00:13:01.350
age of our sun.


00:13:01.360 --> 00:13:03.670
>> What does all of this teach us? Quite a


00:13:03.680 --> 00:13:05.670
lot, as it turns out. It tells us that


00:13:05.680 --> 00:13:07.990
the chemical signatures of comets vary


00:13:08.000 --> 00:13:10.710
dramatically across the galaxy, meaning


00:13:10.720 --> 00:13:12.470
the building blocks of planetary


00:13:12.480 --> 00:13:14.310
systems, including the water and


00:13:14.320 --> 00:13:16.790
organics that may seed life, differ


00:13:16.800 --> 00:13:18.550
significantly from one stellar


00:13:18.560 --> 00:13:20.069
neighborhood to another.


00:13:20.079 --> 00:13:22.230
>> It also demonstrates how much we can


00:13:22.240 --> 00:13:24.629
learn from fleeting cosmic visitors if


00:13:24.639 --> 00:13:26.310
we have the tools to observe them


00:13:26.320 --> 00:13:28.550
quickly. The Veraracruz Reuben


00:13:28.560 --> 00:13:30.949
Observatory in Chile, which released its


00:13:30.959 --> 00:13:33.350
first images in June, is expected to


00:13:33.360 --> 00:13:35.350
dramatically increase the rate at which


00:13:35.360 --> 00:13:38.150
we detect future interstellar objects,


00:13:38.160 --> 00:13:39.990
which could let astronomers determine


00:13:40.000 --> 00:13:42.150
whether three/Atlas's


00:13:42.160 --> 00:13:44.710
unusual properties are rare or


00:13:44.720 --> 00:13:45.829
commonplace.


00:13:45.839 --> 00:13:47.750
>> A visitor that has left the building,


00:13:47.760 --> 00:13:49.750
but whose lessons will be with us for


00:13:49.760 --> 00:13:50.949
years to come.


00:13:50.959 --> 00:13:53.190
>> Our final story today answers a question


00:13:53.200 --> 00:13:55.269
that astrophysicists have been wrestling


00:13:55.279 --> 00:13:58.069
with for decades. At what exact mass


00:13:58.079 --> 00:14:00.230
does a neutron star collapse into a


00:14:00.240 --> 00:14:01.350
black hole?


00:14:01.360 --> 00:14:03.110
>> This is one of those wonderfully


00:14:03.120 --> 00:14:05.269
fundamental questions in physics. We


00:14:05.279 --> 00:14:07.430
know that when a massive star dies, it


00:14:07.440 --> 00:14:09.509
can leave behind either a neutron star


00:14:09.519 --> 00:14:12.069
or a black hole depending on how massive


00:14:12.079 --> 00:14:14.710
the original star was. But the precise


00:14:14.720 --> 00:14:17.110
boundary between those two fates has


00:14:17.120 --> 00:14:19.590
never been definitively pinned down.


00:14:19.600 --> 00:14:22.550
Until now, researchers at the Hunren


00:14:22.560 --> 00:14:24.710
Wigner Research Center for Physics in


00:14:24.720 --> 00:14:26.550
Hungary have published what they


00:14:26.560 --> 00:14:28.949
describe as a definitive answer. The


00:14:28.959 --> 00:14:32.550
boundary falls between 2.2 and 2.3 solar


00:14:32.560 --> 00:14:35.829
masses. To unpack that, a neutron star


00:14:35.839 --> 00:14:38.150
is one of the most extreme objects in


00:14:38.160 --> 00:14:40.710
the universe. Imagine taking the mass of


00:14:40.720 --> 00:14:43.110
two suns and compressing it into a


00:14:43.120 --> 00:14:45.590
sphere about the size of a city. A


00:14:45.600 --> 00:14:47.670
teaspoon of its material would weigh


00:14:47.680 --> 00:14:50.550
billions of tons. These are objects so


00:14:50.560 --> 00:14:52.949
dense that the neutrons themselves are


00:14:52.959 --> 00:14:55.350
packed together like one giant atomic


00:14:55.360 --> 00:14:57.990
nucleus. But there's a limit to how much


00:14:58.000 --> 00:15:00.470
mass a neutron star can hold before


00:15:00.480 --> 00:15:02.389
gravity wins and the whole thing


00:15:02.399 --> 00:15:05.110
collapses inward to form a black hole.


00:15:05.120 --> 00:15:07.910
That limit the Tolman Oppenheimer voloff


00:15:07.920 --> 00:15:10.150
limit has previously been estimated to


00:15:10.160 --> 00:15:12.870
be somewhere between two and three solar


00:15:12.880 --> 00:15:14.870
masses depending on the assumptions


00:15:14.880 --> 00:15:17.910
used. This new work narrows that window


00:15:17.920 --> 00:15:19.910
considerably, placing the critical


00:15:19.920 --> 00:15:23.590
threshold between 2.2 and 2.3 solar


00:15:23.600 --> 00:15:26.389
masses. Beyond that, a neutron star


00:15:26.399 --> 00:15:28.389
simply cannot support itself against


00:15:28.399 --> 00:15:31.189
gravity, and the black hole is born. Why


00:15:31.199 --> 00:15:33.110
does this matter? Because it gives


00:15:33.120 --> 00:15:35.750
astronomers a clearer tool to classify


00:15:35.760 --> 00:15:38.150
compact objects they observe. When we


00:15:38.160 --> 00:15:40.470
detect something via gravitational waves


00:15:40.480 --> 00:15:42.870
or X-ray observations, knowing the


00:15:42.880 --> 00:15:44.949
precise mass boundary between neutron


00:15:44.959 --> 00:15:47.670
stars and black holes helps us identify


00:15:47.680 --> 00:15:49.430
what we're actually looking at.


00:15:49.440 --> 00:15:51.509
>> It also feeds into our understanding of


00:15:51.519 --> 00:15:53.990
what happens in neutron star mergers,


00:15:54.000 --> 00:15:56.230
the cataclysmic collisions that produce


00:15:56.240 --> 00:15:58.389
gravitational wave signals, and some of


00:15:58.399 --> 00:16:00.550
the most energetic explosions in the


00:16:00.560 --> 00:16:01.430
universe.


00:16:01.440 --> 00:16:03.829
>> A beautifully precise answer to one of


00:16:03.839 --> 00:16:06.710
the universe's most extreme questions.


00:16:06.720 --> 00:16:09.030
Before we go, a quick look at the June


00:16:09.040 --> 00:16:11.269
sky for our listeners in Australia, New


00:16:11.279 --> 00:16:12.790
Zealand, and across the Southern


00:16:12.800 --> 00:16:13.829
Hemisphere.


00:16:13.839 --> 00:16:16.069
>> June is a wonderful month for southern


00:16:16.079 --> 00:16:17.829
observers. We're heading toward the


00:16:17.839 --> 00:16:20.389
winter solstice on June 21st, which


00:16:20.399 --> 00:16:22.710
means longer nights, prime time for


00:16:22.720 --> 00:16:25.269
stargazing. Jupiter and Venus are


00:16:25.279 --> 00:16:27.350
currently visible in the western sky


00:16:27.360 --> 00:16:29.990
after sunset. And on June 9th, they'll


00:16:30.000 --> 00:16:32.389
appear at their closest to each other. A


00:16:32.399 --> 00:16:34.389
spectacular conjunction worth getting


00:16:34.399 --> 00:16:37.590
outside for. The Milky Way core is also


00:16:37.600 --> 00:16:39.350
rising in the evening sky from the


00:16:39.360 --> 00:16:41.030
southern hemisphere right now.


00:16:41.040 --> 00:16:42.870
Beautifully positioned for photography


00:16:42.880 --> 00:16:45.269
and naked eye observation in dark sky


00:16:45.279 --> 00:16:47.910
locations away from city lights.


00:16:47.920 --> 00:16:50.389
>> That is all from us for today. Six


00:16:50.399 --> 00:16:52.629
stories and every one of them a reminder


00:16:52.639 --> 00:16:54.710
that the universe is never standing


00:16:54.720 --> 00:16:57.509
still. From Blue Origin's defiant pledge


00:16:57.519 --> 00:17:00.069
to rise from the ashes to magnetic


00:17:00.079 --> 00:17:02.629
fields discovered on distant worlds, it


00:17:02.639 --> 00:17:04.710
has been a remarkable day to cover


00:17:04.720 --> 00:17:07.350
space. If you enjoyed today's episode,


00:17:07.360 --> 00:17:09.990
please subscribe, leave us a review, and


00:17:10.000 --> 00:17:11.909
tell a fellow space lover about the


00:17:11.919 --> 00:17:14.390
show. Find us on Instagram, Facebook,


00:17:14.400 --> 00:17:17.350
and x at astroaily pod and at


00:17:17.360 --> 00:17:19.429
astronomyaily.io.


00:17:19.439 --> 00:17:20.470
>> I'm Avery.


00:17:20.480 --> 00:17:22.789
>> And I'm Anna. We'll see you tomorrow.


00:17:22.799 --> 00:17:36.470
And until then, keep looking up.


00:17:36.480 --> 00:17:40.200
Stories told.