threelonmusketeers

@threelonmusketeers@sh.itjust.works

Alt accounts that are also me:

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The Exploration Company Tests Pre-Burner for High-Thrust Rocket Engine (europeanspaceflight.com)

With co-financing from the French space agency CNES, The Exploration Company kicked off the development of its Typhoon rocket engine in early 2024. According to its website, the company’s full-flow staged combustion cycle reusable rocket engine is designed to produce 200 tonnes of thrust. However, a recent LinkedIn update...

kylecopas, to esa
@kylecopas@pixelfed.social avatar

Terrestrial facilities sign, @esa , Tor Vergata

threelonmusketeers,

Hee-hee, that’s pretty cute. Where is Tor Vergata and what do ESA do at that location?

threelonmusketeers,

I wish they mentioned what propellant they’ll be testing. I’m assuming some hypergols or some gas for ion thrusters.

threelonmusketeers,

Just in case this comment is not a joke, here’s the WHO page on suicide prevention.

Either way, there are a few billion other people on this planet who would rather not die by meteor, thank you very much.

threelonmusketeers, (edited )

Florida

You jest, but the Kennedy Space Center is in Florida. Putting the world’s busiest spaceport out of commission might put a damper on future asteroid deflection missions…

threelonmusketeers,

Wouldn’t detonating on the forward side rather than the zenith side be most effective at lowering the perigee of the moon?

threelonmusketeers,

Listed in the article:

Scientists estimate that 2024 YR4 is between 130 to 300 feet (40 and 90 meters) wide

threelonmusketeers,

!anythingbutmetric

threelonmusketeers,

Technically the solar system is a multi-body system, and everything nudges everything else, but the mass of the earth is far greater than the mass of the asteroid, to the point that it doesn’t matter.

threelonmusketeers,

Provided it enters in a similarly uninhabited location.

threelonmusketeers,

Yeah, even for Lemmy this is bad. I hope most of them are semi-facetious?

[Eric Berger] Europe has the worst imaginable idea to counter SpaceX’s launch dominance (arstechnica.com)

It is difficult to see Airbus and some of the other large, institutional space companies in Europe banding together and becoming nimble and more efficient operators in spaceflight. That would require enormous changes in companies that have decades of ossified culture, with layers of management that are difficult to cut through.

threelonmusketeers,

Why not invest in a bunch of the smaller companies like Rocket Factory Ausburg, PLD Space, MaiaSpace, HyImpulse, etc? They won’t all be successful, but if just a couple of them are, the competition would put Europe in a much stronger position than if they were to establish Euro-ULA.

threelonmusketeers,

There’s only so much you can do when your ranges are literally on the other side of the planet.

Is suppose French Guiana is a bit far, but Andøya, Esrange, and Saxavord all have plans for orbital launches, don’t they?

threelonmusketeers, (edited )

It’s wasteful, immediately hazardous to any crews, and eventually (if not also immediately) harmful to the environment with any wreckage and other pollution that may be produced.

Interesting, I interpret “Europe must embrace a cultural shift towards speed and innovation” in almost exactly the opposite way.

Ariane 6 was essentially an outdated design before it even launched. All of the major American and Chinese launch companies are operating or developing reusable rockets. The launch startups which wrote the open letter are some of the only European organizations actively pursuing reusability, something Arianespace has ignored for far too long.

threelonmusketeers,

Mendelssohn’s Hebrides was a beautiful music choice.

The thumbnail says “last flyby”. Is this “last” as in “most recent” or as in “final”?

threelonmusketeers,

I love that we launched a spacecraft with the sole purpose of measuring the positions of as many stars as possible, just because we could. Well done Gaia, and all the teams who worked on it.

A NASA astronaut may have just taken the best photo from space—ever (arstechnica.com)

Ars has previously written admiringly of Pettit’s work, but his latest image deserves additional mention. When I first saw it, I was dazzled by its beauty. But when I looked further into the image, there were just so many amazing details to be found....

threelonmusketeers,

Argonaut will be a multi-role lunar lander capable of delivering up to 1,800 kilograms of cargo to the surface of the Moon.

According to a Phase A/B1 development document published in July 2024, ESA is targeting 2031 for the launch of the first Argonaut mission. The lander is set to launch aboard an ArianeGroup Ariane 64 rocket from the Guiana Space Centre.

Cool! Another lunar lander!

sebastian, to esa
@sebastian@mastodon.cc avatar

500 kg, 2.5 meter from crashes into Mukuku village in Makueni county, -

It is claimed its sound could be heard from 200 km away.

Current identification says it is a from a

(and it does in fact resemble one) -

any experts here who recognize the make?

@space @planet4589
@esa
@nasa (more links in first comment)

https://nation.africa/kenya/news/object-that-fell-from-the-skies-identified-as-separation-ring-from-a-rocket-4875322

threelonmusketeers, (edited )

I doubt it would be spin-stabilized. I think tumbling would be more likely.

It looks like it has a decent amount of cross-sectional area for its mass. If it is steel, it could withstand pretty high temperatures without melting.

threelonmusketeers,

Jonathan McDowell who works at the Harvard–Smithsonian Center for Astrophysics, told Inside Outer Space that there is “no obvious space candidate

He has since revised his opinion after reviewing more data: bsky.app/profile/…/3lezeu2zodk22

Well, my skepticism about the Kenya space debris may have been wrong. I reviewed the data again, concluding that Space Force estimates of the Ariane V184 upper stage reentry are unreliable; an assocation with this object can’t be ruled out.

He has a detailed writeup here: planet4589.org/space/misc/kenya/index.html

threelonmusketeers,

I wish Arianespace were more innovative and competitive in the launch market. Maybe a new CEO will help shake things up?

threelonmusketeers,

So when do you think we’ll see the first reusable launch vehicle from Europe?

threelonmusketeers,

I wouldn’t have imagined that nearly a decade later, Falcon 9/Heavy would still be the only reusable orbital launch vehicle. The entire launch industry is playing catch up.

2020 (which is coincidentally the year in wich Falcon 9 became commercially available

Falcon 9 has been flying commercial missions since 2013, no? I think CASSIOPE was the first…

threelonmusketeers,

Ah, I didn’t realize you were referring exclusively to crewed missions. Yes, you are correct, the first crewed Falcon 9 launch was in 2020. The flew plenty of uncrewed commercial missions prior to that, though.

It seems like crewed European launch vehicles have a similarly slow timeline to reusable European launch vehicles.

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