astronomy

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CCMan1701A, w Brought my Celestron NexStar 6SE out on a camping trip last weekend and pointed it at the moon

Looking at the moon is always fun.

Gork, w Dark Matter Black Holes Could Fly through the Solar System Once a Decade

What would happen if one of these tiny black holes hit Earth? The article doesn’t really talk about it.

Donjuanme,

Absolutely nothing.

Also not sure why they wouldn’t evaporate nearly instantaneously. Sounds to me like more dark matter bunk.

deegeese,

Passing near the earth, we’d get some strange tides. Passing through the earth, it would eat earth.

Rhaedas,

Nonsense. The event horizon on such things is incredibly small, as is the mass vs. that of Earth.

deegeese,

You don’t need the event horizon, you just need local gravity around 1G. For the masses described in the article, that radius is from hundreds of meters to 10s of kilometers.

Rhaedas,

Which still wouldn't do what you suggest. The mass is the same, so it has the same effect from a distance. Unless by "eat earth" you meant it would take in dirt until it suck to the core, still about the same mass.

grrgyle, w Size Comparison: Pluto and Australia

No way!

Dudewitbow, w Size Comparison: Pluto and Australia

introscene for the next mecha anime confirmed

intensely_human, w Size Comparison: Pluto and Australia

That’s an avocado pit and you know it

7U5K3N, w From a Million Miles Away, NASA Camera Shows Moon Crossing Face of Earth - NASA

I zoomed in… Where’s the Nazi base that one documentary told us about?

You know… Wolfenstein 2

retrospectology,
@retrospectology@lemmy.world avatar

The moon is hollow and the Nazis are on the inside, duh.

7U5K3N,

Better than AI on the inside I suppose

KnightontheSun, w Perseverance rover find intriguing Mars rock

I did some analysis and then tested everything myself. I’ve now arrived at the only possible conclusion: it’s aliens.

SpicyLizards,

Damn, it’s happening. Finally, my anti-alien insurance will pay off.

Sertro,

Who’ll pay it off, though?

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

It’s… beautiful.

Varyk, w Voyager 1 is fully back online months after it stopped making sense.

That is really amazing. Way to go NASA.

original_reader, (edited ) w Planet Nine: Is the search for this elusive world nearly over?

What are we going to name it when it is found?

I trust we really don’t want “Planet Nine” (if we do, we should rename Earth to “Planet 3”), let alone “Planet X”. Any better ideas?

HubertManne,

pluto was called planet X until it was discovered

KISSmyOSFeddit,

Let’s call this one Planet Twitter, just to annoy Elon.

thebardingreen,
@thebardingreen@lemmy.starlightkel.xyz avatar

If Mike Brown finds it, he’ll jump all over naming it, and I’m sure that’s part of his motivation for hunting it so doggedly. He’s like that.

Daxtron2,

It will likely be a Greek or Roman name in keeping with tradition. The IAU generally let’s the person/group that discovers have an influence in the decision but they’re the final say on the name.

lvxferre,
@lvxferre@mander.xyz avatar

With two exceptions*, the names are from Roman mythology. So I’d expect the new planet to get a definitive name from the same template. (Please be Janus. It’s the gate of the solar system!)

*Uranus is from Greek mythology, with no good Latin equivalent. Terra is trickier; you could argue that it fits the template for Latin and the Romance languages, but most others simply use local words for soil, without a connection to the goddess. That is also called Tellus to add confusion.

YungOnions,

Tellus would be a cool name for a planet, imo.

lvxferre,
@lvxferre@mander.xyz avatar

It would, indeed. I wouldn’t mind if it was the scientific/“proper” name for Earth.

Murdoc,

I would; it’s too close to Telus (but pronounced the same), a terrible phone company where I live.

lvxferre,
@lvxferre@mander.xyz avatar

How do you pronounce the company name? For reference, Latin “Tellus” would be /tɛllu:s/; the nearest English equivalent would be “TELL loos”, I guess.

Murdoc,

Tell-us, so more like it looks I guess.

collapse_already,

I think they should call it Nibiru to feed the conspiracy theories.

thebardingreen,
@thebardingreen@lemmy.starlightkel.xyz avatar

I had a roomate ten years ago who seriously believed in all that crap. Lizard people from the edge of the solar system here to claim our gold.

fubarx, w Biologists Find Mutated and Genetically Distinct Strains of Multi-Drug Resistant Bacterium on ISS

Immortal Super Space Bugs!

BeardedGingerWonder, w Caltech Researchers Find Evidence of a Real Ninth Planet

Is this the one they’ve decided exists and then narrow down the parameters as what it must look like every time a survey rules out another patch of sky?

N_Crow, w BepiColombo Detects Oxygen and Carbon Ions in Magnetosphere of Venus
@N_Crow@leminal.space avatar

So, Aliens right?

Olap,

Yup. Combined with phosphene it’s looking more and more likely. But still faaar from proven

very_well_lost,

In this case, the carbon and oxygen are coming from a much more mundane source: the solar wind.

When high-energy particles from the solar wind collide with molecules in Venus’ upper atmosphere, they carry enough energy to break some of those molecules into their constituent atoms. Since the Venusian atmosphere is almost entirely CO2, you should expect this process to generate C and O ions — which is exactly what we’ve now observed!

Faresh, (edited )

If life is proven to exist on Venus, it would be really exciting. Besides the obvious reason to be excited there’s also my thought: If in this planetary system two planets out of 98 have life on them, then that would mean that life isn’t as rare as we conceived it to be.

Edit: Had the tab open for a while without refreshing before posting, so I didn’t see the comment that says it’s just solar wind. :(

XeroxCool, w Total Solar Eclipse - From 30 Years to 3 Minutes & 20 Seconds

I have such mixed feelings about all the time I spent with my cameras during the event. By time I realized I had no practice with the camera and eq mount for daytime use, it was cloudy the whole time at home. Totality is not something you can reasonably practice anyway. So yeah, I have a few cool totality pictures with varying detail and a couple hundred showing the partial phases… But for what? They’re not as good as many other amateurs, let alone professionals. If there was ever a time to deal with the hassle of raw photos, it was then. Part of why I gave up on most astrophotography is because the best I could possibly do is simply match it to scientific equipment. It’s cool to do it, but there’s no personalization. Instead, I look more for nightscapes or wide angle really detailed starfields. I’m still conflicted as to whether or not I experienced it properly. I got to show the pics to some people passing by after, assuming I was the go-to person for info on what they experienced, something I love about night time astronomy, but those aren’t such time-limited events.

I’ll probably revel in memories whenever I actually flip through the pictures. But, personally, I don’t think it was worth spending so much of my time getting pictures of a black hole in a black background rather than just letting my mark 1 eyeballs observe the hole in the blue-fade skies.

However, the one piece I absolutely would bring every single time again is binoculars. Maybe that’s why I feel like I didn’t see the eclipse. The view in my 10x binos was so incredibly detailed, the memory matches the stacked and tweaked pictures. I could see more than just the big laser-don’t flare on the bottom, I saw at least 3. Just unreal, no sight in my life before could explain it. A cartoonishly large corona with a black hole in a black background. Maybe I just couldn’t comprehend.

The light effects near totality were certainly something to experience. Decades of experience being in sunlight just didn’t jive with what the sun was doing then. It was more akin to a distant white streetlight rather than a sun. It dimmed and crisped shadows unlike a sunset by not turning orange and blurring of the edges.

I’m glad you had the emotional experience I was expecting to have.

Kichae,

Yeah, my photography issues were similar, re: unfamiliar context. I’m still puzzled as to why the quicksetting menu works totally differently when using it in mirrorless mode. But oh well. There’s always… 2044??? Oh, crap.

I admit, other than a better lens with a tighter view, the bits of equipment I really wished I’d invested in were a tracking motor and a shutter remote. I paid zero attention to my camera during totality, but I still had this nagging voice in the back of my head telling me that I should check my centering, and I didn’t need that.

XeroxCool,

To potentially save you the confusion I had, the next popular one in North America will really be 2045. They’re both in August, but the 2044 TSE is a relatively short, northerly event with totality ending in Montana at sunset. Meanwhile, 2045 is more akin to the 2017 path, passing from California to Florida.

Zoomboingding,
@Zoomboingding@lemmy.world avatar

Yeah, not much of an emotional reaction from me, beyond a slightly incredulous laugh and an extended wow punctuated by gawking in awe. Definitely should have brought my 'nocs!

Murdoc, w Huge star explosion to appear in sky in once-in-a-lifetime event

I wonder if there’s a way to get an alert or something so I don’t miss it. I tried searching for one but so far no luck.

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