Space Mirrors Spark Controversy, Hidden Space Junk Revealed, and Black Hole Energy Breakthrough
Astronomy Daily: Space News UpdatesJuly 14, 2026x
140
00:21:4419.95 MB

Space Mirrors Spark Controversy, Hidden Space Junk Revealed, and Black Hole Energy Breakthrough

Astronomy Daily — S05E140 | Tuesday 14 July 2026 | Hosts: Anna & Avery Space mirrors are officially cleared for launch — and astronomers are sounding the alarm. In today's episode, Anna and Avery unpack the FCC's approval of Reflect Orbital's Eärendil-1, the first of a proposed constellation of sunlight-reflecting satellites, and what tens of thousands of orbital mirrors could mean for the night sky. Then it's off to the geostationary belt, where astronomers using clever image-stacking — with help from Siding Spring Observatory and the ANU — have revealed a minefield of invisible debris, most of it in no public catalogue. Also on the show: physicists in New York recreate black hole energy extraction on a benchtop, validating a 50-year-old Penrose prediction with 'synthetic rotation'; the Extremely Large Telescope in Chile turns on its axis for the very first time — 3,500 tonnes floating on 80 microns of oil; and University of Sydney's Dr Manisha Caleb and colleagues lay out how the Square Kilometre Array will turn fast radio bursts into a survey tool for the invisible universe. Plus a quick Starship Flight 13 update (now NET Thursday 16 July after a full 33-engine static fire), the story of Avi Loeb's appointment to chair the White House UAP Science Advisory Council, and a skywatch built around tonight's super new Moon. Stories & sources • 01. FCC approves Reflect Orbital Eärendil-1 space mirror — SpaceNews / Space.com / Engadget • 02. Faint debris "minefield" in geosynchronous orbit (DebrisWatch II, Journal of the Astronautical Sciences) — University of Warwick / Phys.org / Space.com • 03. Penrose superradiance via synthetic rotation (Nature) — CUNY ASRC / EurekAlert / Phys.org • 04. ELT completes first full rotation of its 3,500-tonne structure — ESO Picture of the Week / Space.com • 05. Fast radio bursts as cosmological probes with the SKA (Caleb et al.) — Universe Today / arXiv • 06. Starship Flight 13 slips to NET 16 July; full 33-engine static fire complete — Space.com • 07. Avi Loeb appointed chair of White House UAP Science Advisory Council — Space.com / AP coverage Skywatch highlights • Tonight (14 July): super new Moon — darkest skies of the month; Milky Way core overhead for southern observers • Evenings: Venus blazing in the west in Leo; crescent Moon joins Regulus & Venus on 16–17 July • Pre-dawn: Saturn high with rings tilted ~9°; Mars passes 5° north of Aldebaran on 14 July Visit astronomydaily.io for all episodes and the free newsletter. Follow @AstroDailyPod. Astronomy Daily is part of the Bitesz.com Podcast Network.

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00:00:00 --> 00:00:02 Anna: Hello and welcome to Astronomy daily for

00:00:02 --> 00:00:04 Tuesday the 14th of July

00:00:05 --> 00:00:06 2026. I'm Anna.

00:00:07 --> 00:00:09 Avery: And I'm, um, Avery. Episode 140

00:00:09 --> 00:00:12 of season five. And honestly, today's rundown

00:00:12 --> 00:00:14 reads like someone dared us to pick the most

00:00:14 --> 00:00:16 argument starting stories we could find.

00:00:17 --> 00:00:19 Anna: It really does. Coming up, American

00:00:19 --> 00:00:22 regulators have just approved the launch of

00:00:22 --> 00:00:25 the first commercial space mirror, a

00:00:25 --> 00:00:27 spacecraft designed to beam sunlight down to

00:00:27 --> 00:00:30 Earth at night. And astronomers are,

00:00:30 --> 00:00:32 let's say, not thrilled.

00:00:32 --> 00:00:35 Avery: We've also got a newly revealed minefield of

00:00:35 --> 00:00:37 invisible space junk in one of the most

00:00:37 --> 00:00:39 valuable orbits around Earth with an

00:00:39 --> 00:00:41 Australian telescope right in the middle of

00:00:41 --> 00:00:44 the detective work. Plus, physicists and

00:00:44 --> 00:00:46 Manhattan have recreated black hole energy

00:00:46 --> 00:00:49 extraction in a lab. The biggest telescope

00:00:49 --> 00:00:52 ever built just moved for the very first

00:00:52 --> 00:00:54 time. And a new paper explains how the Square

00:00:54 --> 00:00:57 Kilometer Array is about to turn cosmic

00:00:57 --> 00:00:59 lightning flashes into a map of the invisible

00:00:59 --> 00:01:00 universe.

00:01:01 --> 00:01:03 Anna: And later, a quick update on Starship

00:01:03 --> 00:01:06 Flight 13 and the story of the Harvard

00:01:06 --> 00:01:09 astronomer who's just been handed the keys to

00:01:09 --> 00:01:11 the White House's new UFO

00:01:11 --> 00:01:14 Avery: Science Council told you argument

00:01:14 --> 00:01:15 starting. Let's get into it.

00:01:16 --> 00:01:18 Anna: Our lead story today. On 9 July,

00:01:18 --> 00:01:21 the US Federal Communications Commission

00:01:21 --> 00:01:24 formally authorized the launch of Earendil

00:01:24 --> 00:01:27 1, a demonstration satellite from

00:01:27 --> 00:01:29 California startup Reflect Orbital.

00:01:30 --> 00:01:32 Once in orbit around 600 kilometers up,

00:01:32 --> 00:01:35 it will unfurl a thin film reflector

00:01:35 --> 00:01:38 18 meters on a side that's roughly

00:01:38 --> 00:01:41 60ft and use it to bounce sunlight

00:01:41 --> 00:01:44 down to specific spots on the ground for

00:01:44 --> 00:01:45 several minutes at a time.

00:01:45 --> 00:01:48 Avery: So to be clear for everyone, a giant

00:01:48 --> 00:01:51 steerable mirror in space whose entire

00:01:51 --> 00:01:53 job is to shine daylight onto the night side

00:01:53 --> 00:01:54 of Earth.

00:01:54 --> 00:01:57 Anna: That's exactly it. The company calls itself

00:01:57 --> 00:01:59 the Sunlight Company and the pitch is

00:01:59 --> 00:02:02 sunlight on demand. Lighting construction

00:02:02 --> 00:02:04 sites so crews can work through the night,

00:02:05 --> 00:02:07 illuminating search and rescue operations,

00:02:07 --> 00:02:10 and boosting solar farms by extending their

00:02:10 --> 00:02:12 generating hours past sunset.

00:02:12 --> 00:02:14 Avery: The demonstration satellite weighs about

00:02:14 --> 00:02:17 142kg and is due to launch

00:02:17 --> 00:02:19 later this year. And here's the number that

00:02:19 --> 00:02:21 makes this a much bigger story than one test

00:02:21 --> 00:02:24 satellite. ReflectorBital has talked about

00:02:24 --> 00:02:27 operating 50 or more of these

00:02:27 --> 00:02:30 mirror craft in low Earth orbit by 2035,

00:02:30 --> 00:02:31 which is why

00:02:31 --> 00:02:34 Anna: the astronomy community has reacted the way

00:02:34 --> 00:02:36 it has. The FCC application drew

00:02:36 --> 00:02:39 nearly 1900 public comments, the

00:02:39 --> 00:02:42 overwhelming majority critical. For

00:02:42 --> 00:02:45 comparison, SpaceX's application for up to

00:02:45 --> 00:02:48 a million orbital data center satellites drew

00:02:48 --> 00:02:51 about 1500. The European southern

00:02:51 --> 00:02:53 Observatory has described plans like these as

00:02:53 --> 00:02:56 an existential threat to optical astronomy.

00:02:56 --> 00:02:58 Avery: And it's not just professional observatories.

00:02:58 --> 00:03:01 The American Astronomical Society Raised the

00:03:01 --> 00:03:03 prospect of eye damage for amateur

00:03:03 --> 00:03:05 astronomers. The company itself has

00:03:05 --> 00:03:07 acknowledged there's a risk if someone

00:03:07 --> 00:03:09 happened to catch the reflected beam through

00:03:09 --> 00:03:12 a telescope with a large enough aperture.

00:03:12 --> 00:03:14 Plus concerns about momentarily dazzling

00:03:14 --> 00:03:17 pilots and about what artificial daylight

00:03:17 --> 00:03:20 does to wildlife. Circadian rhythms are not

00:03:20 --> 00:03:22 optional extras for most living things.

00:03:22 --> 00:03:25 Anna: The FCC's answer to all of that was

00:03:25 --> 00:03:28 essentially not our department. The

00:03:28 --> 00:03:30 commission said concerns about optical

00:03:30 --> 00:03:32 astronomy and the environment fall outside

00:03:32 --> 00:03:35 its review, which is limited to radio

00:03:35 --> 00:03:37 spectrum. It found the risks with a single

00:03:37 --> 00:03:40 satellite unlikely to materialize, and said

00:03:40 --> 00:03:43 testing novel technology is in the public

00:03:43 --> 00:03:43 interest.

00:03:44 --> 00:03:46 Avery: Which might be true for one satellite. One

00:03:46 --> 00:03:48 mirror tested carefully with the light

00:03:48 --> 00:03:51 contained, switchable and steered away from

00:03:51 --> 00:03:53 observatories. That's a technology

00:03:53 --> 00:03:56 demonstration. 50 of them is a

00:03:56 --> 00:03:58 different planet to live on. And the

00:03:58 --> 00:04:01 regulatory gap is the real story here. If the

00:04:01 --> 00:04:03 agency licensing these satellites says

00:04:03 --> 00:04:06 impacts on the sky aren't their job, then,

00:04:06 --> 00:04:07 uh, whose job are they?

00:04:07 --> 00:04:10 Anna: To be fair to the company, they say they're

00:04:10 --> 00:04:13 trying to earn trust. The light is

00:04:13 --> 00:04:15 contained within the target spot. It can be

00:04:15 --> 00:04:18 switched off at any moment. And they'll avoid

00:04:18 --> 00:04:21 sensitive areas like research

00:04:21 --> 00:04:24 observatories and protected habitats.

00:04:24 --> 00:04:27 Their co founders said this license is the

00:04:27 --> 00:04:30 first step toward rigorously testing

00:04:30 --> 00:04:32 both the technology and the safeguards.

00:04:33 --> 00:04:36 Avery: And that test data, uh, will matter. But I

00:04:36 --> 00:04:38 suspect this is one we'll be covering again

00:04:38 --> 00:04:39 and again.

00:04:40 --> 00:04:42 Anna: The satellites, named Earendil, by the way.

00:04:43 --> 00:04:46 Tulkin fans, will recognize the mariner, who

00:04:46 --> 00:04:48 sails the sky with a shining star on his

00:04:48 --> 00:04:49 brow.

00:04:49 --> 00:04:51 Avery: At least they've got good taste in names.

00:04:51 --> 00:04:53 Whether the night sky agrees is another

00:04:53 --> 00:04:54 matter. Okay.

00:04:54 --> 00:04:57 From mirrors we can see, to junk

00:04:57 --> 00:05:00 we can't. A new study led by the

00:05:00 --> 00:05:02 University of Warwick has uncovered some of

00:05:02 --> 00:05:05 the faintest space debris ever detected in

00:05:05 --> 00:05:08 geosynchronous orbit. Fragments down to

00:05:08 --> 00:05:11 about five centimeters across. That's

00:05:11 --> 00:05:13 two inches. And here's the kicker.

00:05:14 --> 00:05:17 Nearly 80% of the faint objects

00:05:17 --> 00:05:19 they found don't appear in any publicly

00:05:19 --> 00:05:20 available catalog.

00:05:20 --> 00:05:23 Anna: Let's set the scene for anyone new to this

00:05:23 --> 00:05:26 geosynchronous orbit is that special

00:05:26 --> 00:05:27 band about

00:05:27 --> 00:05:30 36km up where a

00:05:30 --> 00:05:33 satellite circles the Earth, exactly in

00:05:33 --> 00:05:36 step with our planet's rotation so it

00:05:36 --> 00:05:39 hangs over the same spot. It's home

00:05:39 --> 00:05:41 to the big, expensive workhorses.

00:05:41 --> 00:05:44 Communications, broadcasting, weather,

00:05:44 --> 00:05:47 monitoring, some of the most valuable real

00:05:47 --> 00:05:48 estate in space.

00:05:49 --> 00:05:51 Avery: And unlike low Earth orbit, there's no

00:05:51 --> 00:05:54 cleanup service. Down low, the wisps of

00:05:54 --> 00:05:57 atmosphere gradually drag debris down until

00:05:57 --> 00:06:00 it burns up. At, uh, geo altitude, there

00:06:00 --> 00:06:02 is essentially nothing. Whatever ends up

00:06:02 --> 00:06:05 there, a dead satellite, a, uh, fragment from

00:06:05 --> 00:06:08 a breakup stays there effectively

00:06:08 --> 00:06:08 forever.

00:06:09 --> 00:06:12 Anna: So how did they find pieces this small

00:06:12 --> 00:06:13 at that distance?

00:06:13 --> 00:06:16 Avery: Clever image processing rather than new

00:06:16 --> 00:06:18 hardware. The team went back to archival

00:06:18 --> 00:06:20 survey data from the Isaacman Newton

00:06:20 --> 00:06:23 Telescope in the Canary Islands and applied a

00:06:23 --> 00:06:25 technique called blind stacking, layering

00:06:25 --> 00:06:27 many images along different possible

00:06:28 --> 00:06:30 trajectories so that incredibly faint moving

00:06:30 --> 00:06:33 objects rise up out of the noise. That

00:06:33 --> 00:06:36 reprocessing revealed 25 debris track

00:06:36 --> 00:06:39 lips the original analysis had completely

00:06:39 --> 00:06:41 missed. And the brightness flickering of many

00:06:41 --> 00:06:44 of these fragments shows their tumbling as a

00:06:44 --> 00:06:45 drift.

00:06:45 --> 00:06:47 Anna: And um, there's a lovely local connection in

00:06:47 --> 00:06:50 this one. The follow up observing campaign

00:06:50 --> 00:06:53 extended the survey to Siding Spring

00:06:53 --> 00:06:55 Observatory here in Australia. Working with

00:06:55 --> 00:06:58 the Australian National University plus

00:06:58 --> 00:07:01 Japan's Bisei Space Guard center with

00:07:01 --> 00:07:03 jaxa. Genuinely international

00:07:04 --> 00:07:07 detective work, which makes sense because the

00:07:07 --> 00:07:09 Geo Belt is a shared resource.

00:07:10 --> 00:07:12 Avery: The study's lead author, Dr. James Blake,

00:07:13 --> 00:07:15 pointed out that pieces of junk up there can

00:07:15 --> 00:07:18 be moving at kilometers per second relative

00:07:18 --> 00:07:20 to each other. So even a 5 centimeter

00:07:20 --> 00:07:23 fragment carries enough energy to do serious

00:07:23 --> 00:07:26 damage to a very expensive satellite. And

00:07:26 --> 00:07:29 his co author, Dr. Stuart Eaves had the line

00:07:29 --> 00:07:32 of the week. The debris in geosynchronous

00:07:32 --> 00:07:35 orbit is a potential minefield. And

00:07:35 --> 00:07:37 nobody in their right mind walks into a

00:07:37 --> 00:07:39 minefield without a mine detector.

00:07:39 --> 00:07:42 Anna: The constructive takeaway being we now

00:07:42 --> 00:07:45 have the detection techniques. Beeper's

00:07:45 --> 00:07:48 systematic surveys of the Geo Belt need

00:07:48 --> 00:07:51 to become routine because there are

00:07:51 --> 00:07:54 only so many orbital slots up there and

00:07:54 --> 00:07:57 one bad debris event could poison a

00:07:57 --> 00:07:59 chunk of that belt for generations.

00:08:00 --> 00:08:02 M Now to a story that's been making headlines

00:08:02 --> 00:08:05 this week, and it's a proper piece of physics

00:08:05 --> 00:08:08 history. Researchers at the Advanced

00:08:08 --> 00:08:10 Science Research center at the City

00:08:10 --> 00:08:13 University of New York have recreated in

00:08:13 --> 00:08:16 a laboratory the mechanism by which energy

00:08:16 --> 00:08:18 can be extracted from a spinning black hole.

00:08:19 --> 00:08:20 The papers in Nature.

00:08:20 --> 00:08:23 Avery: Okay, walk me through the black hole part

00:08:23 --> 00:08:25 first, because it's one of the great ideas of

00:08:25 --> 00:08:26 20th century physics.

00:08:27 --> 00:08:29 Anna: It goes back more than half a century. To Sir

00:08:29 --> 00:08:32 Roger Penrose, A, uh, spinning black hole

00:08:32 --> 00:08:35 drags the very fabric of space around with it

00:08:35 --> 00:08:38 in a region called the Ergosphere.

00:08:38 --> 00:08:41 Penrose realized that if a particle ventured

00:08:41 --> 00:08:43 in there and split in two, one piece could

00:08:43 --> 00:08:46 fall in while the other escaped, carrying

00:08:46 --> 00:08:49 more energy than the original particle

00:08:49 --> 00:08:51 arrived with energy stolen from the black

00:08:51 --> 00:08:54 hole's rotation. The physicist

00:08:54 --> 00:08:57 Yakov Zeldowicz then extended the

00:08:57 --> 00:09:00 idea to bounce a wave off a, uh,

00:09:00 --> 00:09:02 sufficiently fast rotating object and the

00:09:02 --> 00:09:05 wave can come away amplified. That effect

00:09:05 --> 00:09:07 is called super radiance.

00:09:08 --> 00:09:10 Avery: And the problem for 50 odd years has been the

00:09:10 --> 00:09:13 words sufficiently fast. You can't

00:09:13 --> 00:09:15 mechanically spin anything quickly enough.

00:09:15 --> 00:09:17 There were beautiful experiments with water

00:09:17 --> 00:09:20 vortices in 2017 and a rotating

00:09:20 --> 00:09:23 acoustic disc in 2020. But physically

00:09:23 --> 00:09:24 spinning objects hit a heart

00:09:24 --> 00:09:27 Anna: ceiling, which is where the New York team's

00:09:27 --> 00:09:30 trick comes in. They call it synthetic

00:09:30 --> 00:09:33 rotation. Instead of spinning anything at

00:09:33 --> 00:09:35 all, they built a ring of electronic

00:09:35 --> 00:09:38 resonators and rapidly modulated their

00:09:38 --> 00:09:40 electrical properties in a timed sequence

00:09:40 --> 00:09:43 running around the ring to an incoming

00:09:43 --> 00:09:46 radio wave. The stationary device is

00:09:46 --> 00:09:48 indistinguishable from something rotating

00:09:48 --> 00:09:51 impossibly fast. The synthetic rotation

00:09:51 --> 00:09:54 can even mimic motion faster than light,

00:09:54 --> 00:09:57 which no physical object could ever achieve.

00:09:57 --> 00:10:00 Avery: And it worked. The waves actually came out

00:10:00 --> 00:10:00 stronger.

00:10:01 --> 00:10:03 Anna: They did. The team measured genuine

00:10:03 --> 00:10:06 amplification with waves extracting energy

00:10:06 --> 00:10:08 from the synthetic rotation, exactly as

00:10:08 --> 00:10:11 Penrose and Zeldewicz predicted. Nothing

00:10:11 --> 00:10:14 moves. Yet the wave leaves with more energy

00:10:14 --> 00:10:15 than it arrived with.

00:10:16 --> 00:10:18 Avery: What I love about this one is that it cuts

00:10:18 --> 00:10:20 both ways. It's a fundamental physics

00:10:20 --> 00:10:22 validation, a 50 year old prediction about

00:10:22 --> 00:10:24 black holes confirmed on a benchtop in

00:10:24 --> 00:10:27 Manhattan. But it's also a brand new kind of

00:10:27 --> 00:10:29 amplifier. With a team talking about

00:10:29 --> 00:10:31 applications in wireless communications,

00:10:31 --> 00:10:33 optics and quantum technologies.

00:10:34 --> 00:10:36 Astrophysics as an engineering department.

00:10:36 --> 00:10:39 Anna: Black holes inspiring better radios since

00:10:39 --> 00:10:41 1969, who knew?

00:10:42 --> 00:10:44 Avery: Next to a mountaintop in Chile's Atacama

00:10:44 --> 00:10:46 Desert, where the biggest optical telescope

00:10:46 --> 00:10:49 humanity has ever attempted just did

00:10:49 --> 00:10:52 something for the very first time, it moved.

00:10:52 --> 00:10:55 Anna: This is the European Southern Observatory's

00:10:55 --> 00:10:57 Extremely Large Telescope, the

00:10:57 --> 00:11:00 elt, under construction on Cerro

00:11:00 --> 00:11:02 Armazonis. Crews rotated the

00:11:02 --> 00:11:05 telescope's entire structure around its

00:11:05 --> 00:11:08 vertical axis for the first time. And in the

00:11:08 --> 00:11:10 most charming detail of the week, they

00:11:10 --> 00:11:12 started by pushing it by hand a few

00:11:12 --> 00:11:15 centimeters before completing a full

00:11:15 --> 00:11:18 rotation with auxiliary motors. Eso

00:11:18 --> 00:11:21 captioned the release. And yet it moves,

00:11:21 --> 00:11:23 which Galileo would surely have appreciated.

00:11:24 --> 00:11:26 Avery: Now, let's put numbers on why hand pushing

00:11:26 --> 00:11:29 this thing is remarkable. The structure

00:11:29 --> 00:11:30 currently weighs about three and a half

00:11:30 --> 00:11:33 thousand tons. Once the mirrors and

00:11:33 --> 00:11:35 instruments go in, it climbs to around 4

00:11:36 --> 00:11:38 tons. And the whole assembly floats on a film

00:11:38 --> 00:11:41 of oil just 80 microns thin,

00:11:41 --> 00:11:44 roughly the width of a human hair. That's how

00:11:44 --> 00:11:46 a handful of people can start 10 million

00:11:46 --> 00:11:48 pounds of telescope turning.

00:11:48 --> 00:11:51 Anna: And this wasn't ceremony. It was a critical

00:11:51 --> 00:11:54 engineering test. That rotation is how the

00:11:54 --> 00:11:57 ELT will point anywhere in the southern

00:11:57 --> 00:12:00 sky. So proving the motion is smooth is a

00:12:00 --> 00:12:02 genuine milestone on the road to first light.

00:12:03 --> 00:12:05 When it's complete, the ELT's segmented

00:12:05 --> 00:12:08 primary mirror will stretch 39 meters

00:12:08 --> 00:12:11 across, built from 798

00:12:11 --> 00:12:14 hexagonal segments. Working as one,

00:12:14 --> 00:12:17 it'll gather more light than any optical

00:12:17 --> 00:12:18 telescope in history.

00:12:18 --> 00:12:21 Avery: ESO's program manager, Roberto Damai, said

00:12:21 --> 00:12:23 it beautifully that it's a reminder of what

00:12:23 --> 00:12:25 can be achieved when people push in the same

00:12:25 --> 00:12:28 direction, literally and figuratively.

00:12:28 --> 00:12:31 Anna: And for our listeners. Remember, this giant

00:12:31 --> 00:12:34 lives under southern skies, the Magellanic

00:12:34 --> 00:12:37 Clouds, the galactic center overhead. The

00:12:37 --> 00:12:40 ELT will see the same sky you do from

00:12:40 --> 00:12:42 your backyard, just 40 million times

00:12:42 --> 00:12:43 better.

00:12:43 --> 00:12:45 Avery: Rude, frankly, but we'll allow it.

00:12:45 --> 00:12:48 Anna: Sticking with giant instruments and southern

00:12:48 --> 00:12:51 skies. A new paper doing the rounds this

00:12:51 --> 00:12:54 week lays out how the Square Kilometer

00:12:54 --> 00:12:56 Array is going to use one of the most

00:12:57 --> 00:12:59 violent phenomena in the cosmos to

00:12:59 --> 00:13:02 map things, things no telescope can see.

00:13:02 --> 00:13:05 And the lead author is Dr. Manisha Caleb

00:13:05 --> 00:13:08 of the University of Sydney Home, UM team.

00:13:08 --> 00:13:11 Avery: All right. The violent phenomenon in

00:13:11 --> 00:13:14 question being fast radio bursts.

00:13:14 --> 00:13:17 Anna: Fast radio bursts. Flashes of radio

00:13:17 --> 00:13:20 energy from other galaxies that last about

00:13:20 --> 00:13:23 a millisecond, a hundred times quicker than a

00:13:23 --> 00:13:25 blink, yet carry enormous energy.

00:13:26 --> 00:13:28 And they're useful precisely because of what

00:13:28 --> 00:13:31 happens to them on the way here. As a

00:13:31 --> 00:13:34 burst crosses billions of light years, the

00:13:34 --> 00:13:37 plasma it passes through disperses it,

00:13:37 --> 00:13:40 stretching the signal out by frequency. And

00:13:40 --> 00:13:42 magnetic fields twist its polarization

00:13:43 --> 00:13:45 through an effect called Faraday rotation.

00:13:46 --> 00:13:49 Every burst arrives carrying a record of

00:13:49 --> 00:13:50 everything it traveled through.

00:13:51 --> 00:13:53 Avery: So each one is like a core sample drilled

00:13:53 --> 00:13:55 through the universe. The gas between

00:13:55 --> 00:13:58 galaxies barely emits any light, and

00:13:58 --> 00:14:01 magnetic fields emit none at all. But you can

00:14:01 --> 00:14:03 read both from what they've done to the burst

00:14:03 --> 00:14:03 along the way.

00:14:04 --> 00:14:07 Anna: Exactly. And the paper's argument is

00:14:07 --> 00:14:10 about scale. We've caught FRBs by

00:14:10 --> 00:14:12 the hundreds so far. The SKA, with

00:14:12 --> 00:14:15 SKA low being commissioned right now

00:14:15 --> 00:14:18 in Western Australia alongside the Dish

00:14:18 --> 00:14:21 Array in South Africa, is expected to

00:14:21 --> 00:14:24 detect them in the thousands upon thousands.

00:14:24 --> 00:14:27 At those numbers, the team argues, frbs

00:14:27 --> 00:14:30 graduate from curiosities into a

00:14:30 --> 00:14:32 genuine cosmological survey tool,

00:14:32 --> 00:14:35 tracing where the universe's missing ordinary

00:14:35 --> 00:14:38 matter is hiding, mapping cosmic

00:14:38 --> 00:14:40 magnetic fields, probing the universe's

00:14:40 --> 00:14:43 expansion, even testing fundamental

00:14:43 --> 00:14:46 physics, like whether photons have any

00:14:46 --> 00:14:47 mass at all.

00:14:47 --> 00:14:50 Avery: And the poetry of it is that we still don't

00:14:50 --> 00:14:52 fully know what makes a fast radio burst.

00:14:53 --> 00:14:55 Magnetars are the leading suspects, but the

00:14:55 --> 00:14:58 case is enclosed. So the SKA

00:14:58 --> 00:15:01 gets to work the mystery from both ends,

00:15:01 --> 00:15:03 using the bursts as tools while

00:15:03 --> 00:15:06 simultaneously figuring out what they are.

00:15:06 --> 00:15:08 Anna: A telescope, partly in our own backyard,

00:15:09 --> 00:15:11 using millisecond flashes from across the

00:15:11 --> 00:15:14 universe to weigh the invisible. The next

00:15:14 --> 00:15:17 few years of this are going to be something

00:15:17 --> 00:15:18 special Next up

00:15:18 --> 00:15:21 Avery: a, uh, quick update on Starship Flight 13. We

00:15:21 --> 00:15:23 gave you the full preview in yesterday's

00:15:23 --> 00:15:26 episode. So just the new developments today.

00:15:26 --> 00:15:29 First, the launch date has slipped. SpaceX

00:15:29 --> 00:15:31 is now targeting no earlier than Thursday

00:15:31 --> 00:15:34 16th July at 6:45

00:15:34 --> 00:15:37 in the evening US Eastern Time. That's

00:15:37 --> 00:15:40 8:45 Friday morning for those of us on

00:15:40 --> 00:15:41 Australia's east coast.

00:15:41 --> 00:15:44 Anna: And second, the good news that came with the

00:15:44 --> 00:15:47 slip. Basex has completed a, uh, full

00:15:47 --> 00:15:49 static fire of the super heavy Booster,

00:15:49 --> 00:15:52 lighting all 33 Raptor engines on the

00:15:52 --> 00:15:55 pad. That's the final major test before

00:15:55 --> 00:15:56 flight.

00:15:56 --> 00:15:58 Avery: The mission itself is unchanged from what we

00:15:58 --> 00:16:00 covered yesterday. The second flight of the

00:16:00 --> 00:16:03 version 3 vehicle carrying the first

00:16:03 --> 00:16:05 genuinely functional Starlink V3

00:16:05 --> 00:16:08 satellites rather than mass simulators.

00:16:08 --> 00:16:10 If the schedule holds, we'll have the full

00:16:10 --> 00:16:11 story in Friday's episode.

00:16:12 --> 00:16:14 Anna: Set those alarms, Australia. A Friday

00:16:14 --> 00:16:17 breakfast launch is the civilized way to

00:16:17 --> 00:16:18 watch Starship fly.

00:16:19 --> 00:16:21 Now, in case you missed it over the past

00:16:21 --> 00:16:23 couple of weeks, and because it's simply too

00:16:23 --> 00:16:26 interesting to leave on the shelf, Harvard

00:16:26 --> 00:16:29 astrophysicist Avi Loeb has been

00:16:29 --> 00:16:31 appointed to chair a brand new White House

00:16:31 --> 00:16:34 UAP Science Advisory Council, a

00:16:34 --> 00:16:37 scientific panel tasked with investigating

00:16:37 --> 00:16:39 unidentified anomalous phenomena.

00:16:40 --> 00:16:42 That's the current official term for what

00:16:42 --> 00:16:45 everyone still calls UFOs, covering

00:16:45 --> 00:16:48 objects in the air, in space or even

00:16:48 --> 00:16:49 underwater.

00:16:49 --> 00:16:52 Avery: And for listeners who know the name, yes,

00:16:52 --> 00:16:55 that Avi Loeb, former chair of

00:16:55 --> 00:16:57 Harvard's Astronomy Department, hundreds of

00:16:57 --> 00:16:59 papers on black holes and the early universe,

00:17:00 --> 00:17:02 and in recent years, the most famous or

00:17:02 --> 00:17:05 infamous advocate for taking the possibility

00:17:05 --> 00:17:08 of alien technology seriously. He's the one

00:17:08 --> 00:17:10 who suggested the interstellar object

00:17:10 --> 00:17:13 Oumuamua might have been an artificial light

00:17:13 --> 00:17:15 sail back in 2017.

00:17:15 --> 00:17:18 Anna: The setup the council was established under

00:17:18 --> 00:17:21 the Trump administration's transparency push

00:17:21 --> 00:17:23 on uap alongside agencies

00:17:23 --> 00:17:26 including the Pentagon's Anomaly Resolution

00:17:26 --> 00:17:29 Office, Office of the Director of National

00:17:29 --> 00:17:31 Intelligence and the FBI.

00:17:31 --> 00:17:34 Loeb's team reports to a new UAP

00:17:34 --> 00:17:37 governance board overseen by the intelligence

00:17:37 --> 00:17:39 community. And after its first meeting, the

00:17:39 --> 00:17:42 council requested more than 50 videos,

00:17:42 --> 00:17:45 images and documents from the Pentagon tied

00:17:45 --> 00:17:48 to known incidents, including the so called

00:17:48 --> 00:17:51 orb sightings reported by military personnel.

00:17:52 --> 00:17:54 Avery: Now the scientific community's reaction has

00:17:54 --> 00:17:57 been divided is the polite word.

00:17:57 --> 00:18:00 John Kirkpatrick, who used to run the

00:18:00 --> 00:18:02 Pentagon's own UAP investigations, said

00:18:02 --> 00:18:05 Loeb is not viewed favorably by much of the

00:18:05 --> 00:18:07 scientific community and lacks national

00:18:07 --> 00:18:10 security experience. Critics point to his

00:18:10 --> 00:18:12 hand picked counsel, including not just data

00:18:12 --> 00:18:15 scientists and oceanographers, but also

00:18:15 --> 00:18:18 figures who've openly claimed the US has

00:18:18 --> 00:18:20 recovered non human craft and

00:18:20 --> 00:18:22 Anna: in fairness, here's the other side of the

00:18:22 --> 00:18:25 ledger. Loeb himself says he's starting from

00:18:25 --> 00:18:28 the assumption these objects are human made

00:18:28 --> 00:18:30 and treating it as a national security

00:18:30 --> 00:18:33 question. He says the government is genuinely

00:18:33 --> 00:18:36 baffled by some of what it's seen, and his

00:18:36 --> 00:18:38 argument is that the fact these cases are

00:18:38 --> 00:18:41 being open to scientists at all suggests

00:18:41 --> 00:18:43 officials aren't confident they're

00:18:43 --> 00:18:45 conventional. His stated focus is

00:18:45 --> 00:18:48 instrumentation, data standards and

00:18:48 --> 00:18:51 rigorous collection. In his words, better

00:18:51 --> 00:18:54 data could settle the alien debate once and

00:18:54 --> 00:18:54 for all.

00:18:55 --> 00:18:57 Avery: And that's the version of this I can

00:18:57 --> 00:19:00 genuinely get behind. The worst outcome for a

00:19:00 --> 00:19:01 question like this is that it stays in the

00:19:01 --> 00:19:04 realm of blurry footage and anecdote forever.

00:19:04 --> 00:19:06 If this council produces calibrated

00:19:06 --> 00:19:09 instruments and open data, that's a win,

00:19:09 --> 00:19:11 regardless of what the answer turns out to

00:19:11 --> 00:19:14 be. If it produces headlines instead of data,

00:19:14 --> 00:19:16 well, we'll report that too.

00:19:16 --> 00:19:19 Anna: His own line on it Keep our eyes on the

00:19:19 --> 00:19:21 orbs, not the social media.

00:19:21 --> 00:19:24 Avery: On, um, this show, we keep our eyes on both

00:19:24 --> 00:19:26 strictly professionally Time for

00:19:26 --> 00:19:29 Anna: your skywatch, and Tonight is genuinely one

00:19:29 --> 00:19:32 to circle. 14 July brings a

00:19:32 --> 00:19:35 super new moon, which means the darkest

00:19:35 --> 00:19:37 skies of the entire month. And for those of

00:19:37 --> 00:19:40 us in Australia and New Zealand, that's a

00:19:40 --> 00:19:43 standing invitation. The Milky Way's core

00:19:43 --> 00:19:45 is riding high through the evening, with

00:19:45 --> 00:19:47 Scorpius and Sagittarius nearly

00:19:47 --> 00:19:50 overhead. If you've been meaning to get

00:19:50 --> 00:19:52 somewhere dark and see our galaxy properly

00:19:53 --> 00:19:55 tonight and the next few nights are the

00:19:55 --> 00:19:58 Avery: time while you're out there, look west after

00:19:58 --> 00:20:00 sunset for Venus, absolutely blazing at

00:20:00 --> 00:20:03 around magnitude -4 in LEO. You

00:20:03 --> 00:20:06 can't miss it. And here's one for your diary.

00:20:06 --> 00:20:09 On Thursday and Friday evening, the 16th

00:20:09 --> 00:20:11 and 17th, a slender young crescent

00:20:11 --> 00:20:14 moon slides up past Regulus and then Venus,

00:20:14 --> 00:20:16 low in the western twilight.

00:20:16 --> 00:20:19 Anna: A beautiful photo opportunity for the early

00:20:19 --> 00:20:21 risers. The pre dawn east is where the

00:20:21 --> 00:20:24 planets are congregating. Saturn is up after

00:20:24 --> 00:20:27 midnight and high before dawn with its rings

00:20:27 --> 00:20:30 tilted nicely for small telescopes. And

00:20:30 --> 00:20:32 Mars is gliding right past Aldebaran in

00:20:32 --> 00:20:35 Taurus this very morning. Two reddish

00:20:35 --> 00:20:38 points of similar brightness about 5 degrees

00:20:38 --> 00:20:41 apart. A lovely color comparison with just

00:20:41 --> 00:20:42 your eyes.

00:20:42 --> 00:20:45 Avery: Dark skies, a brilliant evening star, and

00:20:45 --> 00:20:48 a red planet racing a red star. Not a

00:20:48 --> 00:20:50 bad week's programming from the universe.

00:20:50 --> 00:20:52 Anna: And that's Astronomy daily for Tuesday

00:20:53 --> 00:20:55 14th July. All our episodes,

00:20:55 --> 00:20:57 show notes and the newsletter are

00:20:57 --> 00:21:00 @astronomydaily IO and you'll

00:21:00 --> 00:21:02 find us across social media.

00:21:02 --> 00:21:05 Avery: Astrodaily pod if

00:21:05 --> 00:21:07 today's episode sparked an opinion and let's

00:21:07 --> 00:21:10 face it space mirrors and UFO councils will

00:21:10 --> 00:21:12 do that. Come tell us about it. We read

00:21:12 --> 00:21:14 everything. I'm Avery.

00:21:14 --> 00:21:16 Anna: And I'm Anna. Thanks for spending part of

00:21:16 --> 00:21:18 your day with us. Until tomorrow.

00:21:18 --> 00:21:19 Avery: Clear skies.