astronomy

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bungalowtill, w NASA Ordered to Remove Anything About 'Women in Leadership' From Its Websites: Report

The gray shirts manage to make everything ugly

synae, w Astronomers seek global ban on space advertising
@synae@lemmy.sdf.org avatar

Mac Tonight is back, baby!

UltraGiGaGigantic, w Astronomers seek global ban on space advertising
@UltraGiGaGigantic@lemmy.ml avatar
Hackworth, w Astronomers seek global ban on space advertising

Astronomers find space advertising

showmeyourkizinti, w Astronomers find massive supernova remnant closer than previously thought

Ok so from what I can understand it blew off approximately a million years ago, and now it’s about 8.8k ly away. But where was it in relation to earth when it exploded?

RizzRustbolt, w Heliophysicists call for fresh missions to study the Sun—and a new name for the field

K’iniophysicists?

NuraShiny, w Atmospheric analysis shows Venus never had Earth-like life, scientists say

Well duh. It’s a hell of acid storms and sulfur, how would it have had life?

HubertManne,

I mean sulfur is an important component of life and extremeophiles can handle many conditions. When I heard things about possible life at venus it was generally the idea of microorganisms floating in the atmosphere.

TheWolfOfSouthEnd,

I’m not meaning to sound sarcastic or like I’m taking the piss, but how do we know there are no life forms that like acid storms and sulphur?

NuraShiny,

This headline says earth-like life. I just didn’t repeat the word.

huf,

there’s a bunch of life around the deep sea volcanoes that lives off sulphur and stuff, so technically it’d still be earth-like life :)

NuraShiny,

Fair point there!

acockworkorange,

Even if it doesn’t have now, it’s quite a leap to say it never had.

NuraShiny,

Is it? Why?

acockworkorange, (edited )

Earth was very inhospitable for life for quite some time. In the future, it could become barren again. What’s to say that Venus wasn’t once harboring life? We don’t know anywhere near enough of its geology to even guess that.

Cenotaph, w Check Out the Highest-Resolution Images Ever Captured of the Sun's Entire Surface

I know I’m not supposed to stare at the sun but 👁️👃👁️

YungOnions,

🔥👃🔥

burgersc12, w James Webb Space Telescope Finds Stunning Evidence for Alternate Theory of Gravity - The Debrief
@burgersc12@mander.xyz avatar

Dr Becky has a few different videos on MOND and what the current (video is from last year) scientific view of it is. Very informative, she’s awesome!

jqubed, w Telescope with world’s largest digital camera will be a ‘game-changer’ for astronomy
@jqubed@lemmy.world avatar

I wish it said more about the camera sensor; guess I’ll have to look that up separately

slazer2au, w Telescope with world’s largest digital camera will be a ‘game-changer’ for astronomy

Here’s hoping starlink and similar Space junk doesn’t mess it up.

fossilesque, w 'Party atmosphere': Skygazers treated to another aurora show
@fossilesque@mander.xyz avatar
Gloomy, w NASA thinks it found a moon light-years away spewing gas
@Gloomy@mander.xyz avatar

I find it fascinating that so much of astronomy is having data and trying to make educated guesses about what that data could maybe indicate. It shows just how much more there is to find out, realy.

jeena, w Starlink is increasingly interfering with astronomy, scientists say
@jeena@piefed.jeena.net avatar

So after some time they all will come down und burn up, what time frame are we talking about?

Successful_Try543, (edited )

The number of satellites in orbit around Earth is rapidly increasing, with some 100,000 expected to be in place by 2030. And as their numbers grow, so does the difficulty of observing the universe from Earth.

Starlink’s satellites are bright enough that astronomers have decried them as an existential threat for as long as SpaceX has been launching them into orbit. While the company has taken some measures to mitigate how shiny they appear from Earth, their increased number and the many other satellites being launched means that their light pollution is “threatening the entirety of ground-based astronomy in every wavelength and in different ways,” astronomers told the BBC. There is a fear that soon, space observation might begin to look like a “windshield of bugs,” and become unfeasible, a researcher at the Vera C. Rubin Observatory in Chile told The New York Times.

So basically, at least during the rest of this decade, our billion dollar telescopes, radio and optical, are blind on different frequencies or are only able to obtain diffuse resolution.

notfromhere,

As technology advances, our ability to observe the universe from space far surpasses ground-based telescopes. While I appreciate amateur astronomy, let’s acknowledge that satellites like those in low Earth orbit can occasionally interfere with surface observations. Instead of criticizing their presence, perhaps we could focus on working together to minimize disruptions and support continued space exploration – after all, observatories like JWST are pushing the boundaries of our understanding.

BrundleFly2077,

This is an insane take. “While I appreciate amateur astronomy” - my dude, it’s not amateurs being affected here. You want to let a small number of tools become the only way humanity has to make these kinds of observations? You think the tools up there can somehow be made to equal the capacity and accommodate the man hours required to do the science we do?

You’re out of your mind.

Successful_Try543, (edited )

Don’t forget important discoveries are also made by or with the help of amateurs, who permanently observe the night sky and measure the coordinates, i.e. the relative positions, of luminating objects. This allows others, mostly professionals, to calculate their motions and obtain information about the (hidden) masses, i.e. luminating and non luminating objects, inducing and influencing them. By this means, black holes, ‘dark’ masses, or asteroids, ‘fast’ moving illuminated objects, have been and are beeing discovered.

BrundleFly2077,

Discoveries about and observations of comets, supernovae, even exoplanet transits are regularly being enriched or even driven in some cases by “amateur” astronomers.

This guy’s legit out of his mind or he’s been huffing Elon’s musk.

Successful_Try543,

Considering their instance, I’d assume they’re more out of their mind than huffing Elmo.

Another important part in this argumentation is that each type of telescope has its use case:
Extraterrestrial telescopes, as they are not objected by atmospheric blur can obtain much better ‘images’ from the cosmos even of weak, low brightness signals, which makes them best for observing the ‘far’ cosmos until the boundaries of recognition.
Yet, they are and always will be much more expensive and more difficult to maintain than terrestrial telescopes. Thus, using them for observing our cosmic front yard, the milky way, is like shooting with canons at sparrows.
Due to their cost, extraterrestrial telescopes also will always be ‘few’, too few to effectively keep track of the objects around us. Thus, ‘cheap’ terrestrial telescopes, large professional ones and small ones run by amateurs, will always be needed to observe the objects ‘closely’ around us, i.e. in our galaxis.

notfromhere,

Yes, extraterrestrial telescopes are hard. And, we need more of them. And we need to give access to amateurs.

imaqtpie,
@imaqtpie@sh.itjust.works avatar

Suggesting that we move towards space-based astronomy doesn’t mean he’s out of his mind. He might not be a professional astronomer or astrophysicist, but that hardly indicates insanity.

They had an opinion and expressed it. You can then reply and explain why you disagree. No need to call them insane for expressing their thoughts.

notfromhere,

The tools “up there” could be made to rival the capacity and accommodate the man hours required to more science than we do now. The problem is it’s hard and expensive and nobody wants to try because of that fact. It’s becoming easier with cheaper launch vehicles and better communications infrastructure. Now we need folks to start identifying the best locations to send new observation satellites and then start building and launching them.

Your take is very conservative and counter to technological progress and I don’t appreciate the personal attack. We can have a meaningful conversation without that crap.

stsquad,

You would be hard pushed to build something like the SKA in space given it spans multiple countries and a significant arc of the earth.

notfromhere,

Imagine one orbiting each planet and what we can observe.

stsquad,

I can imagine it but it certainly won’t be practical to implement in our lifetimes. There are certainly some observatories that benefit from being based in space (optical and infrared) and even gravitational detectors such as laser interferometers. However aside from the wide capture area radio telescopes need large amounts of compute to separate the signal from the noise. The amount of data that needs to be processed makes space based radio observatories very hard to implement.

Maybe the dark side of the moon will make a decent observatory one day but we haven’t set foot on the place for decades, let alone built anything so complex.

lurch, w Elon Musk destroys astronomy
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