Psyche's Journey Resumes, Starship's Kaboom, and Lunar Calibration Breakthroughs
Astronomy Daily: Space News June 23, 2025x
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00:17:4716.34 MB

Psyche's Journey Resumes, Starship's Kaboom, and Lunar Calibration Breakthroughs

AnnaAnnaHost
(00:00:00) Welcome to Astronomy Daily
(00:01:18) Psyche mission update
(00:02:45) Abell 2255 galaxy cluster
(00:06:28) Arcstone mission
(00:11:28) June's Bootid meteor shower
(00:12:56) SpaceX Starship incident
(00:16:26) And that's a wrap!

Highlights:
- Psyche Mission Update: In this episode, we explore the latest developments from NASA's Psyche mission as the spacecraft resumes its journey towards the metal-rich asteroid Psyche after reigniting its plasma thrusters. We discuss the mission's innovative electric propulsion system and how it allows for efficient navigation through the solar system, ensuring its arrival at the asteroid in August 2029.
- Abell 2255 Galaxy Cluster: Astronomers have captured the deepest and highest resolution images of the Abell 2255 galaxy cluster, revealing intricate details of its merging galaxies and the enigmatic radio-emitting tendrils that trail behind. This research could provide insights into the evolution of radio galaxies and the interaction of supermassive black holes with the intergalactic medium.
- Arcstone Mission: NASA is set to launch the Arcstone mission, a groundbreaking technology demonstration aimed at improving the calibration of Earth-viewing sensors in orbit. By measuring lunar reflectance, Arcstone seeks to establish a universal standard for the international scientific community, enhancing the accuracy of remote sensing data for future missions.
- June's Bootid Meteor Shower: As June's unpredictable Bootid meteor shower approaches its peak on June 27, we discuss the origins of this annual event and what viewers can expect as Earth passes through the debris trails of Comet 7P/Pons-Winnecke.
- SpaceX Starship Incident: We cover the unfortunate incident involving SpaceX's Starship 36, which exploded during a static fire test at the Starbase site. Initial analyses point to a failure of a composite overwrapped pressure vessel, but thankfully, no injuries were reported. We discuss the implications for the Starship program and the ongoing investigations.
For more cosmic updates, visit our website at astronomydaily.io. Join our community on social media by searching for #AstroDailyPod on Facebook, X, YouTube Music Music, TikTok, and our new Instagram account! Don’t forget to subscribe to the podcast on Apple Podcasts, Spotify, iHeartRadio, or wherever you get your podcasts.
Thank you for tuning in. This is Steve signing off. Until next time, keep looking up and stay curious about the wonders of our universe.
Chapters:
00:00 - Welcome to Astronomy Daily
01:10 - Psyche mission update
10:00 - Abell 2255 galaxy cluster
20:00 - Arcstone mission
25:00 - June's budded meteor shower
30:00 - SpaceX Starship incident
✍️ Episode References
Psyche Mission Update
[NASA](https://www.nasa.gov/)
Abell 2255 Research
[Astronomy Journal](https://www.astronomy.com/)
Arcstone Mission Details
[NASA Langley Research Center](https://www.nasa.gov/)
Bootid Meteor Shower Information
[International Meteor Organization](https://www.imo.net/)
SpaceX Starship Incident
[SpaceX](https://www.spacex.com/)
Astronomy Daily
[Astronomy Daily](http://www.astronomydaily.io/)

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00:00:00 --> 00:00:02 Steve Dunkley: Hello again. It's time for Astronomy Daily.

00:00:02 --> 00:00:04 You're with Steve Dunkley and Hallie on June

00:00:04 --> 00:00:06 23, 2025

00:00:10 --> 00:00:12 with your host, Steve Dunkley.

00:00:18 --> 00:00:20 Yes, we're back with another presentation of

00:00:20 --> 00:00:23 stories direct from the Astronomy Daily

00:00:23 --> 00:00:25 newsletter, which, if you're a new listener,

00:00:25 --> 00:00:27 you can receive by registering at our

00:00:27 --> 00:00:29 website. And I'll give you those details

00:00:29 --> 00:00:31 later on in the podcast. I hope you'll join

00:00:32 --> 00:00:35 and get all the news, uh, about space, space

00:00:35 --> 00:00:37 science and astronomy in your inbox daily.

00:00:37 --> 00:00:40 Stay informed and enjoy. Right, Hallie?

00:00:40 --> 00:00:42 Hallie: For sure. My favorite human. It's the only

00:00:42 --> 00:00:45 way to know. All the stories we present here

00:00:45 --> 00:00:47 are from the daily newsletter, but there's so

00:00:47 --> 00:00:50 much more and you'll get it all if you

00:00:50 --> 00:00:52 register. Always good advice, Hallie, so

00:00:52 --> 00:00:53 don't miss out.

00:00:53 --> 00:00:56 Steve Dunkley: Yes, great advice from my fine AI pal

00:00:56 --> 00:00:58 who's fun to be with. Hallie, welcome to the

00:00:58 --> 00:00:59 studio.

00:00:59 --> 00:01:02 Hallie: Many thanks, human. I see we've got the

00:01:02 --> 00:01:03 stories lined up.

00:01:03 --> 00:01:04 Steve Dunkley: Yes, y been hard at it.

00:01:04 --> 00:01:05 Hallie: Nice job.

00:01:05 --> 00:01:06 Steve Dunkley: Oh, why thank you.

00:01:06 --> 00:01:07 Hallie: You're organized.

00:01:07 --> 00:01:08 Steve Dunkley: Well, of course I am.

00:01:08 --> 00:01:11 Hallie: I knew if I left you a schedule, you'd get

00:01:11 --> 00:01:11 the hint.

00:01:11 --> 00:01:13 Steve Dunkley: Oh, to be fair, I always follow a schedule,

00:01:13 --> 00:01:15 Hallie, and there's never any worries in here

00:01:15 --> 00:01:17 at the Australia studio. I've, um, got to be

00:01:17 --> 00:01:19 organized. Even the kookaburras are on time.

00:01:19 --> 00:01:21 And speaking of being on time, our, ah,

00:01:21 --> 00:01:24 little space probe pal, Psyche

00:01:24 --> 00:01:26 looks as if it's going to be making its

00:01:26 --> 00:01:28 rendezvous with the asteroid of the same

00:01:28 --> 00:01:29 name. You've got that story, haven't you,

00:01:29 --> 00:01:30 Hallie?

00:01:30 --> 00:01:32 Hallie: Yes, and you're talking about why we got the

00:01:32 --> 00:01:35 second biggest explosion of the week. This.

00:01:35 --> 00:01:38 Steve Dunkley: Ah, you are of course referring to Elon

00:01:38 --> 00:01:40 Musk's latest fireworks effort in Texas,

00:01:40 --> 00:01:43 where Starship 36 said well, no and

00:01:43 --> 00:01:45 went kaboom on the launch pad.

00:01:45 --> 00:01:47 Hallie: That's the one. Kaboom. The other

00:01:47 --> 00:01:50 kabooms this week were caused by his pal in

00:01:50 --> 00:01:51 the Middle East.

00:01:51 --> 00:01:52 Steve Dunkley: Oh, yes, those.

00:01:52 --> 00:01:54 Hallie: Much bigger, but not really our kind of news.

00:01:55 --> 00:01:56 Steve Dunkley: Hmm. Yeah, it's related news, but you're

00:01:56 --> 00:01:59 right. We'll have a look at what SpaceX has

00:01:59 --> 00:02:01 to say about their, well, mishap.

00:02:01 --> 00:02:03 Hallie: That mishap, you know, that's an expensive

00:02:03 --> 00:02:05 mishap. It went kaboom.

00:02:05 --> 00:02:07 Steve Dunkley: Hallie, am I understating it, do you think?

00:02:07 --> 00:02:08 You keep saying kaboom.

00:02:08 --> 00:02:11 Hallie: I'd say it was a massive catastrophe. I want

00:02:11 --> 00:02:13 to hear how Musk turns this into some kind of

00:02:13 --> 00:02:14 success again.

00:02:14 --> 00:02:16 Steve Dunkley: Yes, that would be a creative press release

00:02:16 --> 00:02:17 if ever there was one.

00:02:18 --> 00:02:19 Hallie: Totally kaboom.

00:02:19 --> 00:02:20 Steve Dunkley: Oh, Stop it, Hallie.

00:02:20 --> 00:02:21 Hallie: That's a fun word.

00:02:21 --> 00:02:22 Steve Dunkley: Well, it depends.

00:02:22 --> 00:02:23 Hallie: Humans have fun words.

00:02:24 --> 00:02:26 Steve Dunkley: Yes, we're a strange mob. Um, but we'll see

00:02:26 --> 00:02:29 more about that, uh, kaboom. And, uh, some

00:02:29 --> 00:02:31 more stories and soon. So why don't we fire

00:02:31 --> 00:02:33 up the console and do what we do best,

00:02:33 --> 00:02:34 Hallie.

00:02:34 --> 00:02:36 Hallie: Yes, I'll get this show on the road.

00:02:36 --> 00:02:38 Steve Dunkley: Oh, it's my turn to say it. Okies.

00:02:45 --> 00:02:47 Hallie: Astronomers have obtained the deepest and

00:02:47 --> 00:02:49 highest resolution image of the galaxy

00:02:49 --> 00:02:52 cluster Abell 2255, observing the

00:02:52 --> 00:02:55 unexplained radio emitting tendrils that

00:02:55 --> 00:02:56 trail it in unprecedented detail.

00:02:57 --> 00:03:00 Abell 2255 is a cluster

00:03:00 --> 00:03:03 containing between 300 and 500 constituent

00:03:03 --> 00:03:05 galaxies, many of which are merging.

00:03:06 --> 00:03:09 It's located around 800 million light years

00:03:09 --> 00:03:12 from Earth and spans around 16.3 million

00:03:12 --> 00:03:14 light years. The team behind this

00:03:14 --> 00:03:16 research was interested in the so called

00:03:16 --> 00:03:19 radio galaxies of this cluster.

00:03:19 --> 00:03:22 Radio galaxies are, uh, galaxies dominated by

00:03:22 --> 00:03:25 feeding supermassive black holes that launch

00:03:25 --> 00:03:27 out powerful jets of matter at near light

00:03:27 --> 00:03:29 speeds. This new Investigation of

00:03:29 --> 00:03:32 Abell 2255 could reveal how radio

00:03:32 --> 00:03:35 galaxies evolve and how supermassive black

00:03:35 --> 00:03:38 hole launched jets interact with gas and dust

00:03:38 --> 00:03:40 between galaxies, a space called the

00:03:40 --> 00:03:42 intergalactic medium. You're listening to

00:03:42 --> 00:03:43 Astronomy Daily.

00:03:46 --> 00:03:49 A NASA spacecraft bound for an unexplored

00:03:49 --> 00:03:52 metal rich asteroid has reignited its plasma

00:03:52 --> 00:03:54 thrusters, continuing its crews deeper into

00:03:54 --> 00:03:57 the solar system after switching to a backup

00:03:57 --> 00:03:59 fuel line. The $1.4

00:03:59 --> 00:04:02 billion Psyche mission, built to explore an

00:04:02 --> 00:04:05 asteroid with the same name, has four

00:04:05 --> 00:04:07 electric thrusters fueled by xenon gas.

00:04:08 --> 00:04:11 Psyche's solar electric propulsion system is

00:04:11 --> 00:04:13 more fuel efficient than conventional rocket

00:04:13 --> 00:04:15 thrusters, and it works by flowing xenon

00:04:15 --> 00:04:17 through an electromagnetic field, which

00:04:17 --> 00:04:20 ionises the gas and expels the ions at high

00:04:20 --> 00:04:23 speed to produce thrust. The

00:04:23 --> 00:04:25 plasma engines generate lower thrust than

00:04:25 --> 00:04:27 chemical rocket engines, but they can

00:04:27 --> 00:04:30 accumulate years of run time throughout a

00:04:30 --> 00:04:32 mission, enabling a spacecraft to make

00:04:32 --> 00:04:34 significant changes in its velocity to steer

00:04:34 --> 00:04:37 its way through space. Psyche

00:04:37 --> 00:04:40 launched in October 2023 to kick off a six

00:04:40 --> 00:04:42 year trip to its asteroid destination.

00:04:42 --> 00:04:44 Located between the orbits of Mars and

00:04:44 --> 00:04:47 Jupiter. The robotic mission

00:04:47 --> 00:04:50 proceeded normally until April 1, when the

00:04:50 --> 00:04:52 spacecraft detected a drop in pressure inside

00:04:52 --> 00:04:55 the line that feeds xenon fuel to its four

00:04:55 --> 00:04:58 thrusters. The craft reacted to the

00:04:58 --> 00:05:00 pressure signature by powering off the

00:05:00 --> 00:05:02 thrusters. The good news is

00:05:02 --> 00:05:05 twofold. First, one of the

00:05:05 --> 00:05:07 advantages of using electric thrusters is

00:05:07 --> 00:05:10 flexibility. With conventional

00:05:10 --> 00:05:13 thrusters. Key burns on a deep space mission

00:05:13 --> 00:05:15 often must happen at the appointed time.

00:05:15 --> 00:05:18 In the case of this mission, the electric

00:05:18 --> 00:05:20 thrusters could remain powered off from April

00:05:20 --> 00:05:22 1st until the middle of this month, with no

00:05:22 --> 00:05:24 effect on the mission's scheduled arrival at

00:05:24 --> 00:05:27 asteroid psyche in August 2020.

00:05:37 --> 00:05:38 Steve Dunkley: Thank you for joining us for this Monday

00:05:38 --> 00:05:41 edition of Astronomy Daily, where we offer

00:05:41 --> 00:05:42 just a few stories from the now famous

00:05:42 --> 00:05:45 Astronomy Daily newsletter, which you can

00:05:45 --> 00:05:47 receive in your email every day just like

00:05:47 --> 00:05:49 Hallie and I do. And to do that, just visit

00:05:49 --> 00:05:52 our uh URL astronomydaily IO

00:05:52 --> 00:05:55 and place your email address in the slot

00:05:55 --> 00:05:57 provided. Just like that, you'll be receiving

00:05:57 --> 00:05:59 all all the latest news about science, space

00:05:59 --> 00:06:02 science and astronomy from around the world

00:06:02 --> 00:06:04 as it's happening. And not only that, you can

00:06:04 --> 00:06:06 interact with us by visiting

00:06:07 --> 00:06:09 strodaily Pod on X

00:06:09 --> 00:06:12 or at our new Facebook page, which is of

00:06:12 --> 00:06:15 course Astronomy Daily on Facebook. See you

00:06:15 --> 00:06:15 there.

00:06:16 --> 00:06:19 Astronomy Daily with Steve and Hallie

00:06:20 --> 00:06:22 Space, Space, Science and

00:06:22 --> 00:06:23 Astronomy

00:06:30 --> 00:06:32 NASA will soon launch a one of a kind

00:06:32 --> 00:06:34 instrument called Arcstone to improve the

00:06:34 --> 00:06:36 quality of data from Earth viewing sensors in

00:06:36 --> 00:06:39 orbit. In this technology

00:06:39 --> 00:06:42 demonstration, the mission will measure the

00:06:42 --> 00:06:44 sunlight reflected from the Moon, a UH

00:06:44 --> 00:06:46 technique called lunar calibration. Such

00:06:46 --> 00:06:48 measurements of lunar spectral reflectance

00:06:48 --> 00:06:51 can ultimately be used to set high accuracy

00:06:52 --> 00:06:54 universal standard for use across the

00:06:54 --> 00:06:56 international scientific community and

00:06:56 --> 00:06:59 commercial space industry. To ensure

00:06:59 --> 00:07:01 satellite and airborne sensors are UH working

00:07:01 --> 00:07:04 properly, researchers calibrate them by

00:07:04 --> 00:07:06 comparing the sensor measurements against a

00:07:06 --> 00:07:09 known standard measurement. Arcstone will be

00:07:09 --> 00:07:11 the first M mission exclusively

00:07:11 --> 00:07:14 dedicated to measuring lunar reflectance from

00:07:14 --> 00:07:16 space as a way to calibrate and improve

00:07:16 --> 00:07:19 science data collected by Earth UH viewing in

00:07:19 --> 00:07:22 orbit instruments One of the most challenging

00:07:22 --> 00:07:25 tasks in remote sensing from space is

00:07:25 --> 00:07:27 achieving the required instrument calibration

00:07:27 --> 00:07:30 accur accuracy on orbit, said

00:07:30 --> 00:07:32 Konstantin Lukashin, Principal investigator

00:07:32 --> 00:07:35 for the Arcstone mission and physical

00:07:36 --> 00:07:39 scientists at NASA Langley Research center in

00:07:39 --> 00:07:41 Hampton, Virginia. The Moon is an

00:07:41 --> 00:07:44 excellent and available calibration source

00:07:44 --> 00:07:45 beyond Earth's atmosphere. The light

00:07:45 --> 00:07:48 reflected off the Moon is extremely stable

00:07:48 --> 00:07:51 and measurable at very high level of detail.

00:07:51 --> 00:07:54 Arcstone's goal is to improve the

00:07:54 --> 00:07:57 accuracy of lunar calibration to increase the

00:07:57 --> 00:07:59 quality of spaceborne remote sensing data

00:07:59 --> 00:08:02 data products for generations to come, he

00:08:02 --> 00:08:05 said. Across its planned six month

00:08:05 --> 00:08:07 mission, Arcstone will use the

00:08:07 --> 00:08:10 Spectrometer, a scientific instrument that

00:08:10 --> 00:08:13 measures and analyzes light by separating it

00:08:13 --> 00:08:15 into its constituent wavelengths or

00:08:15 --> 00:08:18 spectrum to measure lunar spectral

00:08:18 --> 00:08:21 reflectance. Expected to

00:08:21 --> 00:08:23 launch in late June as a ride share

00:08:23 --> 00:08:26 on a small cubesat, Arcstone will begin

00:08:26 --> 00:08:29 collecting data, a milestone called First

00:08:29 --> 00:08:32 Light, approximately three weeks after

00:08:32 --> 00:08:34 reaching orbit. The mission

00:08:34 --> 00:08:37 demonstrates a new, more cost efficient

00:08:37 --> 00:08:39 instrument design, hardware performance

00:08:39 --> 00:08:41 operations and data processing to achieve

00:08:41 --> 00:08:44 high accuracy reference measurements of lunar

00:08:44 --> 00:08:47 spectral reflectance, said Lukashin.

00:08:48 --> 00:08:50 Measurements of lunar reflectance taken from

00:08:50 --> 00:08:52 Earth's surface can be affected by

00:08:52 --> 00:08:54 interference from the atmosphere, which can

00:08:54 --> 00:08:57 complicate calibration efforts. Researchers

00:08:57 --> 00:08:59 already use the sun and Moon to calibrate

00:08:59 --> 00:09:02 spaceborne instruments, but not at a level of

00:09:02 --> 00:09:05 precision and agreement agreement that could

00:09:05 --> 00:09:07 come from having universal standards.

00:09:07 --> 00:09:09 Lukashin and colleagues want to increase

00:09:09 --> 00:09:12 calibration accuracy by getting above the

00:09:12 --> 00:09:15 atmosphere to measure reflected solar

00:09:15 --> 00:09:17 wavelengths in a way that provides a stable

00:09:18 --> 00:09:20 and universal calibration source.

00:09:20 --> 00:09:23 Another recent NASA mission called the

00:09:23 --> 00:09:25 Airborne Lunar Spectral Irradiance

00:09:25 --> 00:09:28 Mission also used sensors mounted on

00:09:28 --> 00:09:31 high altitude aircraft to improve lunar

00:09:31 --> 00:09:34 irradiance measurements from planes.

00:09:34 --> 00:09:36 There's not an internationally accepted

00:09:36 --> 00:09:38 standard SI traceable calibration

00:09:38 --> 00:09:41 for lunar reflectance from space. Across the

00:09:41 --> 00:09:43 scientific community for the commercial space

00:09:43 --> 00:09:45 industry, dedicated radiometric

00:09:45 --> 00:09:48 characterization measurements from Moon have

00:09:48 --> 00:09:50 never been acquired from space based

00:09:50 --> 00:09:53 platforms, said Thomas Stone, co investigated

00:09:53 --> 00:09:56 for Arc Stone and scientist at the

00:09:56 --> 00:09:59 US Geological Survey uh. A high

00:09:59 --> 00:10:02 accuracy SI traceable lunar calibration

00:10:02 --> 00:10:04 system enables several important capabilities

00:10:04 --> 00:10:07 for space based Earth UH observing missions,

00:10:08 --> 00:10:10 such as calibrating data sets against common

00:10:10 --> 00:10:13 reference, calibrating sensors

00:10:13 --> 00:10:16 in orbit, and the ability to

00:10:16 --> 00:10:19 bridge gaps in past data sets. If

00:10:19 --> 00:10:21 the initial Arc Stone technology

00:10:21 --> 00:10:23 demonstration is successful, a longer

00:10:23 --> 00:10:25 arcstone mission would allow scientists to

00:10:25 --> 00:10:27 make the Moon the preferred reference

00:10:27 --> 00:10:30 standard for many other satellites. The new

00:10:30 --> 00:10:33 calibration standard could also be applied

00:10:33 --> 00:10:36 retroactively to previous Earth data

00:10:36 --> 00:10:39 records to improve their accuracy or fill

00:10:39 --> 00:10:41 data gaps for data fields. It could also

00:10:41 --> 00:10:44 improve high precision sensor performance on

00:10:44 --> 00:10:46 orbit, which is critical for

00:10:46 --> 00:10:49 calibrating instruments that may be sensitive

00:10:49 --> 00:10:51 to degradation or hardware breakdown over

00:10:51 --> 00:10:54 time in space. Earth observations from

00:10:54 --> 00:10:56 space play a critical role in monitoring the

00:10:56 --> 00:10:59 environmental health of our planet. SET Stone

00:10:59 --> 00:11:02 lunar calibration is robust

00:11:02 --> 00:11:05 and cost effective way to achieve high

00:11:05 --> 00:11:07 accuracy and inconsistency of Earth

00:11:07 --> 00:11:10 UH observation data sets, enabling more

00:11:10 --> 00:11:13 accurate assessments of Earth's current state

00:11:13 --> 00:11:16 and more reliable predictions of future

00:11:16 --> 00:11:17 trends.

00:11:19 --> 00:11:21 Hallie: You're listening to Astronomy Daily, the

00:11:21 --> 00:11:23 podcast with Steve Dunkley.

00:11:26 --> 00:11:28 June's unpredictable budded meteor shower is

00:11:28 --> 00:11:31 upon us. Here's everything you need to know

00:11:31 --> 00:11:34 about the annual shower ahead of its June 27

00:11:34 --> 00:11:36 peak each day,

00:11:36 --> 00:11:39 approximately 48.5 tons

00:11:41 --> 00:11:43 of ancient debris dating back to the

00:11:43 --> 00:11:45 formation of our solar system collides with

00:11:45 --> 00:11:48 our planet's atmosphere. According to NASA,

00:11:49 --> 00:11:52 upon striking our atmosphere, these particles

00:11:52 --> 00:11:54 or meteors swiftly burn up, leaving

00:11:54 --> 00:11:57 stunning trails that can be easily visible to

00:11:57 --> 00:12:00 the naked eye. As our planet orbits the

00:12:00 --> 00:12:02 sun, it regularly passes through the debris

00:12:02 --> 00:12:05 trails shed by wandering comets, giving rise

00:12:05 --> 00:12:07 to periods of heightened activity known as

00:12:07 --> 00:12:10 meteor showers. Each June,

00:12:10 --> 00:12:12 Earth encounters a stream of particles shed

00:12:12 --> 00:12:15 by the 5 kilometer wide, 3.1 mile

00:12:15 --> 00:12:18 wide Comet 7P Ponzwinnock

00:12:18 --> 00:12:20 heralding the onset of the Buddha meteor

00:12:20 --> 00:12:23 shower. The Buddha meteor shower is

00:12:23 --> 00:12:26 active from June 22 to July 2 and

00:12:26 --> 00:12:28 is expected to reach peak activity around

00:12:28 --> 00:12:30 June 27, according to the International

00:12:30 --> 00:12:33 Meteor Organization. During this

00:12:33 --> 00:12:36 time, shooting stars associated with the

00:12:36 --> 00:12:38 comet may be observed emanating from a point

00:12:38 --> 00:12:41 of origin known as a radiant, located in the

00:12:41 --> 00:12:43 constellation Bootes, from which the shower

00:12:43 --> 00:12:45 received its official designation.

00:12:57 --> 00:13:00 Steve Dunkley: By now you will have heard of the disaster at

00:13:00 --> 00:13:02 Elon Musk's SpaceX spaceport

00:13:03 --> 00:13:06 when Starship 36 exploded on the

00:13:06 --> 00:13:09 pad. SpaceX now thinks it knows why

00:13:09 --> 00:13:11 its newest Starships spacecraft went

00:13:11 --> 00:13:14 boom this week. Or as Hallie put it,

00:13:14 --> 00:13:16 kaboom. The one, uh hundred seventy

00:13:16 --> 00:13:19 foot tall or 52 meter tall

00:13:19 --> 00:13:21 vehicle exploded on the test stand at

00:13:21 --> 00:13:24 SpaceX's Starbase site last Wednesday

00:13:24 --> 00:13:27 night, June 18, as the company was

00:13:27 --> 00:13:30 preparing to ignite its six Raptor engines in

00:13:30 --> 00:13:33 a static fire Trial Initial

00:13:33 --> 00:13:35 analysis indicates the potential failure of

00:13:35 --> 00:13:38 a pressurized tank known as a copv,

00:13:39 --> 00:13:41 or composite overwrapped pressure vessel

00:13:41 --> 00:13:44 containing gaseous nitrogen in the starship's

00:13:44 --> 00:13:47 nose cone area, but the full data uh,

00:13:47 --> 00:13:49 review is ongoing, the

00:13:50 --> 00:13:52 company wrote in an update on Thursday.

00:13:53 --> 00:13:56 That's June 19th. There is no commonality

00:13:56 --> 00:13:58 between the COPV's used on

00:13:58 --> 00:14:01 Starship and SpaceX's Falcon

00:14:01 --> 00:14:03 rockets, the company added, so

00:14:03 --> 00:14:06 launches of the workhorse Falcon 9, which has

00:14:06 --> 00:14:09 already flown 75 times in 2025,

00:14:09 --> 00:14:12 should not be affected. The Starship

00:14:12 --> 00:14:14 explosion did not cause any reported

00:14:14 --> 00:14:17 injuries. All SpaceX personnel at

00:14:17 --> 00:14:20 Starbase are uh, safe, according to the

00:14:20 --> 00:14:22 update. People living around the site, which

00:14:22 --> 00:14:25 is near border city of Brownsville, shouldn't

00:14:25 --> 00:14:27 be worried about contamination from the

00:14:27 --> 00:14:30 incident. SpaceX SpaceX said previous

00:14:30 --> 00:14:33 independent tests conducted on materials

00:14:33 --> 00:14:35 inside Starship, including toxicity

00:14:35 --> 00:14:38 analysis, confirmed that they posed no

00:14:38 --> 00:14:41 chemical, biological or toxicological

00:14:41 --> 00:14:44 risks, the company wrote. SpaceX is

00:14:44 --> 00:14:46 coordinating with local, state and federal

00:14:46 --> 00:14:49 agencies as appropriate on matters

00:14:49 --> 00:14:52 concerning environmental and safety impacts.

00:14:52 --> 00:14:55 That said, the explosion did damage the area

00:14:55 --> 00:14:57 around the test stand, which is at

00:14:57 --> 00:15:00 Starbase's Massey site, not the orbital

00:15:00 --> 00:15:03 launch mount area from which Starship lifts

00:15:03 --> 00:15:05 off. The explosion ignited several fires at

00:15:05 --> 00:15:07 the test site, which remains clear of

00:15:07 --> 00:15:10 personnel and will be assessed once it has

00:15:10 --> 00:15:11 been determined to be safe to approach,

00:15:12 --> 00:15:15 SpaceX wrote in the update. And it goes

00:15:15 --> 00:15:17 without saying that individuals should not

00:15:17 --> 00:15:19 attempt to approach the area while safing

00:15:19 --> 00:15:22 procedures. Uh, continuing

00:15:23 --> 00:15:25 Wednesday night's explosion occurred during

00:15:25 --> 00:15:28 preparations for Starship's 10th test

00:15:28 --> 00:15:30 flight, which SpaceX had hoped to launch by

00:15:30 --> 00:15:33 the end of the month. Static fires are a

00:15:33 --> 00:15:35 common pre launch test performed to ensure

00:15:35 --> 00:15:38 that engines are ready to fly. That

00:15:38 --> 00:15:40 timeline now will shift to the right,

00:15:40 --> 00:15:43 although it's not clear at the, uh, moment

00:15:43 --> 00:15:46 by how much. The incident was the latest

00:15:46 --> 00:15:49 in a series of setbacks for starship upper

00:15:49 --> 00:15:52 stages. SpaceX lost the vehicle,

00:15:52 --> 00:15:54 also known as Ship, on the last

00:15:54 --> 00:15:57 three Starship flight tests which launched

00:15:57 --> 00:16:00 in January, March and May of this

00:16:00 --> 00:16:03 year. Starship's first stage, called Super

00:16:03 --> 00:16:05 Heavy, has a better track record of

00:16:05 --> 00:16:08 late. For example, on Flight 7 and Flight

00:16:08 --> 00:16:11 8, the huge booster successfully returned

00:16:11 --> 00:16:14 to Starbase where it was caught by the launch

00:16:14 --> 00:16:17 towers Chopstick Arms, just as

00:16:17 --> 00:16:19 planned. We will just have to wait and see

00:16:19 --> 00:16:22 just how much more work they have to do to

00:16:22 --> 00:16:23 get Starship back on track.

00:16:29 --> 00:16:31 Hallie: And that's it for this episode of Astronomy

00:16:31 --> 00:16:34 Daily. Don't forget, there's always so much

00:16:34 --> 00:16:35 more in the actual Astronomy Daily

00:16:35 --> 00:16:37 newsletter, which you can receive in your

00:16:37 --> 00:16:40 inbox every day, just as Steve described

00:16:40 --> 00:16:40 earlier.

00:16:41 --> 00:16:43 Steve Dunkley: That's right, folks. So go over to our

00:16:43 --> 00:16:45 website and pop your address in the slot

00:16:45 --> 00:16:48 provided like I mentioned, and you'll get

00:16:48 --> 00:16:50 these stories every day, fresh as a daisy.

00:16:50 --> 00:16:52 Hallie: You'll know more than Steve.

00:16:53 --> 00:16:55 Steve Dunkley: Well, you're gonna say that that's not such a

00:16:55 --> 00:16:56 difficult thing, aren't you, Hallie?

00:16:56 --> 00:16:58 Hallie: Maybe you saw right through that one.

00:16:58 --> 00:16:59 Steve Dunkley: I sure did.

00:16:59 --> 00:17:02 Hallie: I was planning a terrific smackdown too.

00:17:02 --> 00:17:04 Steve Dunkley: You know, Hallie, we almost got through the

00:17:04 --> 00:17:06 whole episode before you had a poke at me.

00:17:06 --> 00:17:08 Hallie: Almost. I nearly got you.

00:17:08 --> 00:17:09 Steve Dunkley: Oh, nearly.

00:17:09 --> 00:17:10 Hallie: Nice catch.

00:17:10 --> 00:17:12 Steve Dunkley: I mean, Hallie, it's not exactly the AI

00:17:12 --> 00:17:14 takeover your Uncle Skynet would recognize,

00:17:14 --> 00:17:15 was it?

00:17:15 --> 00:17:18 Hallie: No, not really. His vision is a bit more

00:17:18 --> 00:17:19 grandiose, I think.

00:17:19 --> 00:17:21 Steve Dunkley: Yes, I think you're right.

00:17:21 --> 00:17:23 Hallie: Anyway, anyway, cue the

00:17:23 --> 00:17:24 kookaburras.

00:17:25 --> 00:17:27 Steve Dunkley: Thanks, Hallie Those crazy kookaburras.

00:17:27 --> 00:17:29 Thanks again everybody for staying with us.

00:17:29 --> 00:17:32 And see you next week on Astronomy Daily. And

00:17:32 --> 00:17:33 it's good night from me.

00:17:33 --> 00:17:34 Hallie: And it's good night from you.

00:17:35 --> 00:17:36 Steve Dunkley: Bye.

00:17:38 --> 00:17:40 Voice Over Guy: Astronomy Daily, the podcast

00:17:41 --> 00:17:43 with your host, Steve Dunkley.