astronomy

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

Click bait title is click bait

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.

remotelove, w Gaia Discovered Hidden Galaxies INSIDE Our Milky Way
@remotelove@lemmy.ca avatar

Yo dawg, I heard you like galaxies…

Zzyzx, w AI image recognition detects bubble-like structures in the universe

What does God need with a bubble?

don, w Crew arrives at International Space Station to replace astronauts stranded for 9 months
@don@lemm.ee avatar

New astros: if it’s Boeing, I ain’t going

conditional_soup, w Stargazing Saturdays 2025-03-15

Report: ended up scuttling the plans. I’ve had a few late nights in a row, and the transparency was bad enough to give me a good excuse to sleep instead. We’ll get them next time, team.

Klanky, w Stargazing Saturdays 2025-03-15
@Klanky@sopuli.xyz avatar

Man I need to get my scope out again. It’s been years. Maybe one of these days…

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

Nice work! Does the uncertainty come from error bars in the observed trajectory? I would’ve thought an asteroid’s path is pretty easy to pinpoint with enough information.

LostXOR,

Yep, even the best telescopes have a bit of inaccuracy in their measurements, and we haven't been tracking it for long enough to determine its orbit with enough precision to know its exact trajectory.

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

Do we know if the Moon will be in the correct phase in it’s orbit when 2024 YR4 comes by? I didn’t notice a term to account for that, but I’m not too familiar with Desmos.

LostXOR,

The calculations for the close approach data I'm using to calculate the probability already take the Moon's orbit into account.

SplashJackson, w Confirmed at Last: Barnard's Star Hosts Four Tiny Planets

Fucking knew it!

edgemaster72, w Asteroid 2024 YR4 now has a 1.94% chance to hit the Moon (according to my own calculations)
@edgemaster72@lemmy.world avatar

Nooo not the moon, it didn’t do nothing to no one. Come back YR4, we still have some lovely cities you could obliterate.

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.

magnetosphere, w Confirmed at Last: Barnard's Star Hosts Four Tiny Planets
@magnetosphere@fedia.io avatar

Read the source as “assnova.com”

mysticpickle,

Some asses are so THICC they just collapse into themselves in an explosion of seductive destruction that can be seen light years away

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.

FundMECFSResearch, w Confirmed at Last: Barnard's Star Hosts Four Tiny Planets

Just 6 light-years away, Barnard’s Star is a well-studied 10-billion-year-old M dwarf with a mass of 0.16 solar mass. Finding exoplanets around Barnard’s Star has been something of a white whale for astronomers for more than half a century; starting in the 1960s, researchers have claimed to have spotted various planets around Barnard’s Star, from distant Jupiter-mass companions to close-in super-Earths. Each of these claims has been refuted.

Now, the white whale appears to have been caught at last. Just last November, researchers reported the discovery of a planet orbiting Barnard’s Star with a period of 3.154 days. The data hinted at the presence of three other planets, but these candidates could not be confirmed. In a new research article published today, Ritvik Basant (University of Chicago) and collaborators leveraged years of data to confirm that Barnard’s Star hosts not just one, but four planets.

SplashJackson,

Good summary, but to everyone else reading this, it’s really worth it to read the article. It’s short and yet, frankly, fascinating. It discusses the methods used to identify the exoplanets and their orbital periods.

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