astronomy

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A_A, in ‘It’s amazing’: scientists analyse 4.6bn-year-old dark dust from Bennu asteroid
@A_A@lemmy.world avatar

“It’s amazing. It’s like a little treasure trove that takes us back to the start of the solar system,” said Dr Ashley King, a planetary scientist who will work on the grains at the museum. “I can’t wait to get my hands on them and see what we can learn about the early solar system.”

… are ecstatic because they discovered …
well, nothing yet.

throws_lemy, in Mars Needs Insects
@throws_lemy@lemmy.nz avatar

It’s reminds me of bugs from planet Klendathu

instamat, in Inside NASA’s bid to make spacecraft as small as possible

Put astronauts in an iron man suit and fire them from a cannon.

Pizza_Rat, in Mars Needs Insects

That’s neat!

GummySquirrel, in Mars Needs Insects
@GummySquirrel@startrek.website avatar

Because humans introducing species to new environments always goes well 😩

Coldgoron, in Mars Needs Insects

So desert plant life plus desert bugs equals terraforming capable species?

zepheriths, in Mars Needs Insects

… I think more importantly mars needs oxygen

otter, in Hydrogen discovered in Apollo-era moon rocks could change the future of lunar exploration
@otter@lemmy.ca avatar

This was a video I saw some time ago about the potential for a moon base

How We Could Build a Moon Base - Kurzgesagt

homesweethomeMrL, in Spiral galaxies like the Milky Way are surprisingly rare. Astronomers may finally know why.

A computer simulation says spiral galaxies on a plane bang into each other and result in more elliptical galaxies. Ours hasn’t banged into anyone else yet, that the computer simulation knows about.

bdx2023,

… So that infamous impending collision with Andromeda will take our spirals away?!

(Impending in a cosmological sense, so several million years at least IIRC)

Trabic,

Thousands of millions of years I think, and continuing for at least hundreds of millions before the bouncing stops

media.giphy.com/media/…/giphy.gif

Kata1yst,
@Kata1yst@kbin.social avatar

Actually our galaxy has had at least 1 other collision according to our current understanding.

https://www.wired.com/story/this-galactic-collision-shaped-the-history-of-the-milky-way/

But our spiral likely formed after.

rah, in Spiral galaxies like the Milky Way are surprisingly rare. Astronomers may finally know why.

Downvoted for click-bait title.

Shdwdrgn, in Scientists detect a cosmic ray that’s almost as powerful as the ‘Oh-My-God’ particle | CNN

The described impact of one of those particles got me thinking… I wonder how many “ghostly” encounters have been recorded in history that could be attributed to one of these particles actually hitting someone? I’ve seen several things on TV where the recorded sensation was like being punched in the gut, or ‘god’ tapping someone on the shoulder and driving them forward. However I’m a bit confused from the article – I’m not sure if this particle would travel right through you since it’s subatomic, or if it would actually feel like something hit you. Still, it’s fun to ponder.

aBundleOfFerrets,

These particles split into a crap ton of lower energy ones when they hit the edge of the atmosphere, nothing that makes it to humans has enough energy to be felt, even if they interact with you. (they probably won’t)

Zaphod,

I’ve seen a Veritasium video about this where he said you can see flashes of light if these particles hit your retinas while your eyes are closed.
Apparently astronauts experience this a lot

Claidheamh,

They do, because there is very little atmosphere to shield them from it.

Shdwdrgn,

Ah well, it would have been an interesting explanation for ghost stories.

TheOneWithTheHair, (edited ) in These Eerie Photos Are The Only Ones Ever Taken on Venus
@TheOneWithTheHair@lemmy.world avatar

What if we originated on Venus? Then came to Earth as our ancestors messed up that planet. And we came here so we wouldn’t make the same mistake again? What if we are aliens that have the capability to know enough about science to be dangerous to the planets in the universe? Maybe reincarnation is simply finding a new planet to start over on, so that one day we can become decent enough to keep a planet going? /s

Sheeple,
@Sheeple@lemmy.world avatar

I feel like people didn’t catch the /s at the end of your shitpost

Lmaydev,

It’s not sarcasm though.

Sheeple,
@Sheeple@lemmy.world avatar

Then why the fuck out a /s at the end when it isn’t sarcasm

Lmaydev,

It is by definition not sarcasm. So it doesn’t need a /s

Sarcasm usually involves saying the opposite of what you really mean. But it’s hard to infer from text so you add the /s so people don’t downvote because they think you are serious.

I.e. the OC is soo sarcastic /s or Trump is a once in a generation genius!! /s

sethboy66,

I don't think you've quite understood '/s'. The author was not serious with his post and indicated this fact with '/s'. By definition it is sarcasm as that's what the author defined it as.

Lmaydev,

the use of irony to mock or convey contempt.

No.

Skua,

It would make for a pretty cool setting for a story though. Set in the near future, first crewed missions to Venus find petroglyphs recording the last days of their ancestors

Sheeple,
@Sheeple@lemmy.world avatar

It’s a surprisingly common scifi trope.

tetris11,
@tetris11@lemmy.ml avatar

Well if we truly are planet destroying devils, I’m fairy certain God will send his holy light missiles to cleanse the planet as he did with Mars.

I believe there’s a documentary on this very idea called Devilman Crybaby

gonta,

I’ve watch and read various version of Devilman, I enjoyed the series… But I could never remember the main plot or story, only the memes stuck to my brain.

tetris11, (edited )
@tetris11@lemmy.ml avatar

MAJOR SPOILERS

At the end he fights Satan for an endless eternity, using a diminishing supply of other willing demons as spare body parts as he wears all his limbs out.

The shocks of their battle cause irreparable damage to Earth, and the last of humanity to perish with it.

At the end, he lies limbless, dead or comatose next to Satan on the moon, who asks him almost child-like for closure.

White glowing meteorites presumably sent from God crash into the Earth, wiping all demonic (and presumably all) life from it, similar to the book of revelations

gonta,

Ah yeah, thanks for jogging my goldfish memory. Pretty wild ending, no wonder my brain interpret it as wild fever dream.

tetris11,
@tetris11@lemmy.ml avatar

It was one of the biggest plot escalations I’d ever seen, and it just got objectively worse and worse. That last episode left me severely depressed.

deadcream,

We just need spren to control our surgebinding and will be fine.

stoy, in Enormous 'sunspot archipelago' 15 times wider than Earth could soon bombard us with solar flares

A new Kerrington event would be a real bummer.

Darkncoldbard,

Carrington*

undeffeined,

Paddington*

Agent641,

We need a carrington event that will delete the bitcoin blockchain and all those fucking ape pictures

kalkulat, in NASA Requests Funding for $1 Billion 'Space Tug' to Deorbit the ISS
@kalkulat@lemmy.world avatar

Pay a billion to burn it up?

It’d cost a lot less to put it in a higher orbit for a thousand years where it could be a museum for space travellers.

canis_majoris, (edited )
@canis_majoris@lemmy.ca avatar

You can’t do that because it will physically fall apart. That’s the main issue with boosting it up higher and just leaving it there. It was never designed to be existing for a thousand years, and eventually wear and tear will make the station naturally break apart. It’s significantly more dangerous for small fragments to drop over time as compared to a deorbit and decomm. At least the deorbit is planned, while the disintegration would be pretty random and not fun to deal with.

kalkulat,
@kalkulat@lemmy.world avatar

You can’t do that because it will physically fall apart.

Don’t know where you ever got that idea. It raises and lowers itself all of the time these days to avoid debris.

It could easily be raised to 2-5000 miles by adding energy from a similar small engine (with a decent-sized fuel tank) over a few months/years.

‘Wear and tear’ from what? Micrometeorites? The orbits of any ‘small fragments’ (of what?) would decay very slowly and instantly burn-up many centuries later.

Cyberbatman, in Man Keeps Rock For Years Thinking It's Gold. It Turned Out to Be Far More Valuable.

Kind of bum that the article did not mention how much it was worth

LibertyLizard,
@LibertyLizard@slrpnk.net avatar

I think their take is kind of questionable. It may be more valuable to science but its monetary value is almost certainly less than gold.

luciole,
@luciole@beehaw.org avatar

The writing is at morning program levels of goofiness; it’s jarring. At 17 kg this meteorite would be worth over a million USD if it was gold. It’s like the writer is taking a piss at the poor guy who hoped to get some money out of it.

Fester,

The researchers argue that the Maryborough meteorite is much rarer than gold, making it far more valuable to science.

💀

Brickhead92,

Just imagine how many science they could get if they traded it in!

Fuck_u_spez_,

At least 3.

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