astronomy

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apftwb, w Giant Mirrors in Space Could Bring Sunlight After Dark, One Startup Says—and Astronomers Are Concerned

I am adding this to my 2026 and 2027 bingo

“Teen pays 40 dollars to Giant Mirror service to blast sunlight at Chilean observatory destroying 2.5m USD of equipment. Giant Mirror service denies liability.”

“Sunning. The new SWATing?”

unepelle, w I made a custom TRMNL plugin to tell me whether it’s worth taking the telescope up!

My person, that is amazing ! Well done

rayquetzalcoatl, w Aliens Probably Exist - But They’re Staying Silent For a Reason
@rayquetzalcoatl@lemmy.world avatar

I think they are talking but their voices are actually just too high for us to hear. This is why some dogs can be so skittish at times, because they can hear the aliens saying really mean things about us behind our backs

Maeve,

True things?

Sxan,

No. Aliens are notorious liars. It’s why your dog still loves you.

Maeve,

Your cat would kill you though, if they could figure out food delivery and payment!

Bluetreefrog, w For the first time, astronomers witness the dawn of a new solar system
@Bluetreefrog@lemmy.world avatar

There’s so much cool stuff happening in Astronomy at the moment.

Carrolade, w NASA's Hubble Tracks a Roaming Magnetar of Unknown Origin

Why would they just copy/paste a few select paragraphs (and not even the most interesting ones) from the much more informative NASA article?

…nasa.gov/…/nasas-hubble-tracks-a-roaming-magneta…

gravitas_deficiency,

It’s probably LLM summarized

Nougat, w Hubble peers deep into Uranus, finds extra time

Uranus is vastly larger than the Earth.

Grandwolf319, w Toxic Mars Dust Could Pose Major Health Risks For Future Astronauts

Ah yes, the one and only obstacle to us colonizing mars.

/s

prex, w Curiosity Mars rover discovers largest organic molecules ever seen on Red Planet
AbouBenAdhem, (edited ) w Scientists hail ‘avalanche of discoveries’ from Euclid space telescope

Further images reveal how massive galaxies surrounded by dark matter, the invisible substance said to pervade the universe, warp space and magnify more distant galaxies behind them.

So Euclid’s images violate Euclid’s parallel postulate.

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

Yo dawg, I heard you like galaxies…

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

These planets are in remarkably close quarters, with periods of just 2.34, 3.15, 4.12, and 6.74 days.

Speedy little guys

very_well_lost,

The furthest of the four is estimated to have an orbital radius of about 0.03 AU. That’s 1/10th the size of Mercury’s orbit around the sun!

veroxii,

At least it’s a dry heat.

keepthepace,

850°C apparent temperature 830°C. Stay hydrated.

muhyb,

That’s a fuel scooping range.

Wahots,

Warning, temperature critical.

keepthepace,

“Hot planets are waiting for you in the star’s neighborhood!”

troyunrau, w Saturn has 128 new moons – more than the rest of the planets combined
@troyunrau@lemmy.ca avatar

This is a great question. It’s like asking when a rock is too small to be a planet. I suspect there were be a definition eventually that mirrors the planetary definition – something like “spherical(ish) and clears its orbit”. The issue is that Mars would lose its two moons under that definition.

So we might end up with something like “moons” vs “natural satellites” and Mars will just have to suck it up.

kinttach,

Moons vs. dwarf moons? (Sounds like a fantasy novel series.)

edgemaster72, w NASA cuts off international climate science support
@edgemaster72@lemmy.world avatar
ornery_chemist,

later?

edgemaster72, (edited )
@edgemaster72@lemmy.world avatar

What they’ll say then: The atmosphere used to be on fire. It still is, but it used to be too.

But yeah, I probably should have said “meanwhile” instead of “later”

TachyonTele, w In a last-minute decision, White House decides not to terminate NASA employees

Who was the one person that down voted this, and why?

jatone,

deleted_by_author

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  • ohYouKnow,

    I can’t believe you’ve done this.

    jatone, (edited )

    deleted_by_author

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  • toynbee,

    That’s the exact opposite of what NASA wants!

    llamacoffee, w Don’t panic, but an asteroid has a 1.9% chance of hitting Earth in 2032
    @llamacoffee@lemmy.world avatar

    Wow this is the most depressing comment section I’ve ever seen.

    threelonmusketeers,

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

    Swedneck,
    @Swedneck@discuss.tchncs.de avatar

    it’s just standard “haha self harm funi”, it’s so easy to post and reliably gets a few upvotes, so it’s just a kneejerk response to posts like these.

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