astronomy

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lvxferre, w AI Unlocks Hundreds of Cosmic Anomalies in Hubble Archive
@lvxferre@mander.xyz avatar

I remember Angela Collier talking about this topic, but basically: the “AI” in question is a different beast from the “AI” in chatbots and image generators. The underlying tech is the same (artificial neural networks), but instead of making the bot mimic human output, you’re asking it to point out stuff.

So for example, you feed it with two sets of data:

  1. a bunch of pics of completely normal astronomical objects
  2. a bunch of pics of anomalous astronomical objects

Then you “ask” the bot to assign new pictures (not present in either set) to one of those sets.

In my opinion it’s one of the best ways to use the new tech. If there’s a false positive, nobody is harmed — the researcher will simply investigate the pic, see there’s nothing worth noting there, say “dumb clanker”, and move on. Ideally you don’t want false negatives, but if they do happen, you’re missing things you’d already miss anyway — because there’s no way people would trial down all those pics by hand.

It also skips a few issues associated with chatbots and image generators, like:

  • since it’s “trained” for a specific purpose, it isn’t DDoSing sites for training “data”. It’s all from the telescope, AFAIK in the public domain.
  • no massive training = no massive water/energy cost.
  • no concerns related to authorship or whatever.
protist, w Why doesn't Argentina have more telescopes?

You’ll find most of Chile’s observatories are in the Atacama Desert, and that almost all of the Atacama Desert is in Chile. The high elevation, incredibly low humidity, and remote location make for dark, clear skies

Rhaedas, w Giant Mirrors in Space Could Bring Sunlight After Dark, One Startup Says—and Astronomers Are Concerned
@Rhaedas@fedia.io avatar

This won't have a bad effect on the biosphere at all. No sir.

Diplomjodler3, w Boeing's troubled capsule won't carry astronauts on next space station flight
@Diplomjodler3@lemmy.world avatar

Why don’t they just cancel this blasted thing already? Boeing have time and time again demonstrated that they can’t be trusted.

Shadow,
@Shadow@lemmy.ca avatar

Probably don’t want to be limited to only spacex to get up there

Diplomjodler3,
@Diplomjodler3@lemmy.world avatar

Sure. But that doesn’t mean they should endlessly throw good money after bad.

Muffi, w Aliens Probably Exist - But They’re Staying Silent For a Reason

Looks like another journalist just finished reading The Dark Forest

bjoern_tantau, w New dwarf planet spotted at the edge of the solar system
@bjoern_tantau@swg-empire.de avatar

Ugh, didn’t read the “dwarf” part and got my hopes up for planet 9. When they eventually do find it they have to name it something with P so that the old mnemonics still work.

Zachariah,
@Zachariah@lemmy.world avatar

“Planet 9” starts with “P”

FaceDeer,
@FaceDeer@fedia.io avatar

I've heard that the sign of a fair bargain is that everybody leaves unhappy. So how about we name it "Pluto?" That should annoy pretty much everyone.

SuperEars,

“Plutwo”

Microw,

This study authors btw say that their models for 2017 OF201’s orbit work best without the influence of a hypothetical planet 9

bjoern_tantau,
@bjoern_tantau@swg-empire.de avatar

Ooh, nice!

DemBoSain, w Scientists hail ‘strongest evidence’ so far for life beyond our solar system
@DemBoSain@midwest.social avatar

I hope they’re hostile, contagious, and almost here.

luckystarr, w Half of the universe's hydrogen gas, long unaccounted for, has been found

If I understood this correctly, they analyzed incredibly blurry images and concluded that there are clouds of gas around galaxies, then they extrapolated the found gas up to all or almost all galaxies and concluded that it can fulfill the calculated expectations.

BaroqueInMind,

Thank you. Saved me a click?

OfCourseNot,
@OfCourseNot@fedia.io avatar

What I understood is kind of the opposite–they already knew there were hidrogene clouds around galaxies but analyzed some almost imperceptibly blurry images and found they were bigger than currently thought. They're blurry because they were taken in some wavelength not observable until now that is scattered by the ionized gas.

threelonmusketeers, w We planned for the unexpected, say stranded Nasa astronauts from space station

stranded Nasa astronauts

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

This also isn’t really relevant to astronomy.

Yawweee877h444, w Don’t panic, but an asteroid has a 1.9% chance of hitting Earth in 2032

Sigh. Why can’t it be 109%

This place sucks.

psud,

It’s not big enough to fix anything. If it hits, it won’t hit America or Europe

It’s in the big nuke scale of energy, enough to do a lot of damage to a small area. Were it to hit a city, the city would need a lot of rebuilding. Were it to hit, few people would be in danger as we will have years of warning. The only people in the impact area would be “storm chasers” travelling to see the impact

Floshie, w Don’t panic, but an asteroid has a 1.9% chance of hitting Earth in 2032

should I mention “don’t look up” ?

expatriado, w Don’t panic, but an asteroid has a 1.9% chance of hitting Earth in 2032

that was Trump chances in 2016…

Gradually_Adjusting, w Atmospheric analysis shows Venus never had Earth-like life, scientists say
@Gradually_Adjusting@lemmy.world avatar

I can’t say I’m surprised

…But my relief is profound

AOCapitulator, w Elon Musk destroys astronomy
@AOCapitulator@hexbear.net avatar

It is the moral imperative of all living humans to strive to murder Elon must as soon as possible

BedSharkPal, w OP: "This is my most advance moon photograph EVER it consist of 81000 images and over 708GB of data." (see comments.)

It’s crazy to me that you can get this much detail even through our atmosphere.

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