astronomy

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reflex, (edited ) w Frozen water discovered on Mars could fill Red Sea
@reflex@kbin.social avatar
_Gandalf_the_Black_, w Frozen water discovered on Mars could fill Red Sea

But the Red Sea is already full of water

indigomirage,

Perfect.

cmbabul, w Frozen water discovered on Mars could fill Red Sea

We’re gonna mine space for water ain’t we

HurlingDurling,
@HurlingDurling@lemmy.world avatar

Only if we use water as a fuel source

ahriboy,
@ahriboy@lemmy.dbzer0.com avatar

Is the Martian dust safe?

kadu,
@kadu@lemmy.world avatar

Hello it’s me Cave Johnson, turns out Martian dust is a terrible poison, I’m gravely ill. Good news is it’s a fantastic paint.

DharmaCurious,
@DharmaCurious@startrek.website avatar

If there’s one thing doctor who has taught me it’s that the waters of mars of are completely safe, and they do good things for the body.

cmbabul,

Not that time is really just a big ball of wibbly wobbly timey wimey stuff?

reflex,
@reflex@kbin.social avatar

We’re gonna mine space for water ain’t we

Oye, beltalowda!

littlebluespark,
@littlebluespark@lemmy.world avatar

Na du push xidawang kaka felota shukumi ere milowda, mi beratna (o’ sésata), na! Milowda ge da kaka end fo da shetéxeting na materi keting fong da tumang, amash ye. 😱🙅🏽

5714,

Well not you personally, Terran, but yes.

Jeredin, w Lightest black hole or heaviest neutron star? MeerKAT uncovers a mysterious object in Milky Way

I’ve been studying the range of neutron stars for some time and I feel confident it won’t be too long until much of our evidence and observations will show that black holes, quasars, super massive black holes and the range of other black holes are very likely, more extreme neutron stars - if not quark-like stars or stellar quantum-like objects. For fun, I’ve been also been focusing on colloids, extreme condensates and their quantum/relativistic phases/states; very revealing interactions and emergent properties. Now if we could just better observe zero-point energy…

5714,

What is zero-point energy?

Jeredin,
neutronbumblebee, w James Webb telescope discovers the oldest, most distant black hole in the universe

These are the massive black holes that lurk at the core of most galaxies. Like the one at the center of our own milkyway galaxy. The question remains do they form at the center of baby galaxies or are they the seed which triggers a galaxy to develop and they just grow even larger over time. If early galaxies had massive black holes for their galaxy size, that suggests the last option. Primordial black holes that is ones that were formed in the big bang have been a possibility for a long time. They have been talked about by astronomers since the 1970s. It great that so much is being discovered now. Lots of surprises still coming I suspect. More info on primeval black holes here. https://physicsworld.com/a/concerning-primordial-black-holes/

holycrap, w James Webb telescope discovers the oldest, most distant black hole in the universe

…so far

bolditalicroman, w James Webb telescope discovers the oldest, most distant black hole in the universe

the oldest black hole ever not seen

charlytune, w The Orion You Can Almost See
@charlytune@mander.xyz avatar

I see Orion as a jaunty little disco dancer in this. Arms up in the air, legs apart, hip stick out to one side.

Spzi, w The Orion You Can Almost See

Thank you, great post!

I recognized the constellation. Though it’s good to have a refresher, and I learned something new.

MachineFab812, w The Orion You Can Almost See

That link changes daily, so for now I’mma just have to link to this thread.

Still, holy shit.

awwwyissss, w Nasa unveils quiet supersonic aircraft in effort to revive commercial flights

“Ok boys, we need ideas. We’re fucking the planet up irreparably in a way that will cost many, many millions of lives… but I feel like we could be doing it a lot faster. Get off your ass and invent a way for rich assholes to screw us even more than they already are”

Rosco, w Nasa unveils quiet supersonic aircraft in effort to revive commercial flights

Looks pretty damn cool, but supersonic commercial flights will be ridiculously expensive, pollutive and wasteful, there’s no going around this. There’s zero practical uses for the common man.

CaptainSpaceman,

Would be nice to see this much time effort and money put into electric planes

thefluffiest, w Nasa unveils quiet supersonic aircraft in effort to revive commercial flights

And exactly how much CO2 emissions does this thing generate?

joostjakob,

It makes me so mad we don’t just tell the flight industry that by date X no planes that use traditional fuel can be produced, and by date Y that they won’t be allowed to fly. Doesn’t even need to a global agreement, if the European market is closed, than that could be motivation enough. And it would focus innovation on efficiency instead of frivolous stiff like this.

CommieCretzl, w Nasa unveils quiet supersonic aircraft in effort to revive commercial flights
@CommieCretzl@hexbear.net avatar

1.4 times the speed of sound – or 925mph (1,488 km/h)

I feel like I’m going mad

Blaze, w Nasa unveils quiet supersonic aircraft in effort to revive commercial flights
@Blaze@discuss.tchncs.de avatar

I hope this is relevant for this community, let me know otherwise

M500,

I think it’s close enough and I’m happy to see it.

threelonmusketeers,

Astronomy: “a natural science that studies celestial objects and the phenomena that occur in the cosmos”

I suppose anything that happens in the universe is technically “a phenomenon that occurs in the cosmos” but this seems more suited to !nasa, which could definitely use the content. Would you consider posting it there as well?

Blaze,
@Blaze@discuss.tchncs.de avatar

I’m not the biggest fan of Lemmyworld, I prefer thematic instances such as Mander.xyz. Maybe we can consider this community as broader than strict astronomy?

jadero,

I also prefer thematic instances, but try to find appropriate communities within those instances. Just because it’s coming from NASA, doesn’t make it astronomy.

Depending on which aspects of the project you think are important and want to discuss there are a few communities here that might be relevant.

Earth Science includes environment, and environmental impact seems to be the most popular talking point so far.

Noise and other forms of pollution are public health issues and there is a local community for that, although I’m not sure it’s really a great fit there.

Physics might be another choice due to the fact that a lot of physics is going into the engineering of something that reduces sonic booms.

Or maybe you just need to find the right thematic instance. For example, I’m registered on slrpnk for my climate, energy efficiency, and anarchism fixes.

Blaze,
@Blaze@discuss.tchncs.de avatar

I just noticed there is !space, it could probably fit there. The issues is that it is 10 times smaller than !astronomy.

Anyway, next time I’ll post something definitely related to space to avoid the doubt

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