astronomy

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atx_aquarian, w What would happen if you moved at the speed of light?
@atx_aquarian@lemmy.world avatar

The time thing is interesting, but I feel like no one talks much about the appearance of passing objects. That is, I wonder how the image of a passing celestial object might distort due to length contraction and any other effects. I’m still trying to understand that. This article seems pretty digestible, so far.

JoMomma, w An astronomer's lament: Satellite megaconstellations are ruining space exploration

You can just say Starlink, it’s the only one

apfelwoiSchoppen,
@apfelwoiSchoppen@lemmy.world avatar

Amazon is planning and implementing the same.

Deebster, w Japan’s moon landing picture might be the space photo of the decade
@Deebster@beehaw.org avatar

TIL that Takara Tomy (the company that made the Transformers toys) designed the Transformable Lunar Robot LEV-2, aka Sora-Q (“sky sphere”):

https://beehaw.org/pictrs/image/289d7326-fc21-47da-b3be-7c2006b559da.webp

nooneescapesthelaw, w NASA finally figures out how to open a $1-billion canister

Why didn’t they just use a socket wrench?

This is why you don’t send an scientest to do an engineer’s job

LesserAbe, w Frozen water discovered on Mars could fill Red Sea

I’m glad there’s water. We need that!

Bears_Koolaid, (edited ) w NASA Finally Removes Last Two Fasteners To Access Historic Bennu Asteroid Sample

I really want to see the tool they developed to do this.

Edit: This NASA blog page has some images and more details of the tools themselves

…nasa.gov/…/nasas-osiris-rex-team-clears-hurdle-t…

XeroxCool,

Are those… Philips screws? Looks like maybe two dots indicating JIS (shallower angle, less cam-out, and #1 cause of stripped screws on Japanese motorcycles) but I’d really like to know why a hex or torx screw wasn’t used

Bears_Koolaid,

I was curious about that too. They look like Torq-set to me, being that the slots are offset from the center of the screw. If that’s the case they’re shouldn’t be any cam out at all.

In either case the fasteners that were stuck appear to be Hex head, and the phillips looking fasteners just held a protective cover in place (?)

I would imagine NASA would know better than to use Philips for anything lol.

By the way there is a link on the page to more images of the assembly

Cuttlersan, w The First US Moon Lander Since The Apollo Era Is About to Make History

Exciting! :D

threelonmusketeers, w [Meta] Comm Clarification

I think that !space is the most general community, and communities like “!astronomy” and “!spaceflight” are subsets.

  • Interesting data from a telescope? Astronomy and space, but not spaceflight.
  • A new GPS satellite is launched? Spaceflight and space, but not astronomy.
  • The Perseverance rover drills into a neat rock on Mars? Space, but not really astronomy or spaceflight.
  • A new space telescope is launched? Definitely all three.

These are just my thoughts though, and I’d love to hear what others think.

@Bee, @otter, @Bitswap Thoughts on changing the display name of !space from “Space & Astronomy” to just “Space”? Not that astronomy posts wouldn’t be welcome, but it could help reduce confusion with this community.

Bitswap,

Yeah. Actually confused me for a minute and I had to go dig into all the different communities on mander.

I think it makes sense to change the display name.

otter,

I’m good with that too. A pinned post and sidebar list should help people know where to share content.

doug, w For the first time, astronomers watch a black hole 'wake up' in real-time
@doug@lemmy.today avatar

Oh my goodness. That is the cutest black hole in here. And he’s comin’ this way, oooooooooooooooooh!

arakhis_, w Hubble peers deep into Uranus, finds extra time
@arakhis_@feddit.org avatar

That’s what’s gonna happen when you peer deep into uranus

quediuspayu, w Toxic Mars Dust Could Pose Major Health Risks For Future Astronauts

Hasn’t been a known fact for years that martian dirt is toxic as fuck?

threelonmusketeers, w Crew arrives at International Space Station to replace astronauts stranded for 9 months

to replace astronauts stranded for 9 months

They were never considered stranded, except maybe for the few days between Starliner’s empty return and the Crew-9 Dragon’s arrival. Certainly not for 9 months.

This also isn’t really relevant to astronomy.

conditional_soup, w Asteroid 2024 YR4 now has a 1.94% chance to hit the Moon (according to my own calculations)

This is super cool! I was kinda hoping it would hit soonish. 2032 feels like it might as well be 3032 with how things are going. Hopefully this doesn’t mess up any of the world’s plans for lunar bases.

egrets, w Confirmed at Last: Barnard's Star Hosts Four Tiny Planets
@egrets@lemmy.world avatar

Unfortunately we’ll never get to visit them in person if Prostetnic Vogon Jeltz has anything to say about it:

We are about to jump into hyperspace for the journey to Barnard’s Star. On arrival we will stay in dock for a seventy-two-hour refit, and no one’s to leave the ship during that time. I repeat, all planet leave is canceled. I’ve just had an unhappy love affair, so I don’t see why anybody else should have a good time.

anindefinitearticle, (edited ) w Kissing moons may explain why Earth's moon is so large

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