astronomy

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troyunrau, w Regulation needed to protect space tourists from cosmic rays
@troyunrau@lemmy.ca avatar

Easy. If you can afford to be a space tourist, you can afford to put $5M in escrow for your future medical expenses.

Let’s take risks people!

troyunrau, w Want to be a NASA astronaut? Applications are open
@troyunrau@lemmy.ca avatar

A half dozen years ago, or thereabouts, I entered the Canadian version of this competition, just to see how I’d fare, and to look at the process. Made it through the first couple levels of screening (from 3200 applicants, I was still in the hunt at 300 remaining) but then got filtered.

Some interesting bullet points if you’re thinking of applying, assuming the NASA questions are similar to the CSA ones:

(1) ham radio, morse code, or other amateur radio operator experience is an asset.

(2) Anything aviation or amateur rocketry is an asset, but in particular a pilot’s license. Anything aviation adjacent is still useful.

(3) Russian language (this might be changing in the current political environment)

(4) Experience in an “operational environment” – I suspect this is military jargon, but if you’d don’t field research as a scientist out of wilderness camps, or anything like that where you’re in a small group for work/adventure might apply here.

(5) Medical degrees, or advanced science degrees.

(6) Physical fitness and perfect vision

When I applied, my Russian sucked, my aviation experience was tangential (but copious), and I was a grad school dropout (from a planetary science program), so I didn’t float to the top. But it was enough to make it through the first layers.

There person who ended up winning was a medical-degree air force pilot. Hard to compete haha.

deegeese, w Webb directly images two planets orbiting white dwarfs
JoMomma, w Japan’s moon landing picture might be the space photo of the decade

“The lander was at most 10 meters off its mark, according to space agency officials, which is comparable to 11 yards or less.” Lol

Are we adding yards to clarify the distance for the benefit of American football players?

HurlingDurling,
@HurlingDurling@lemmy.world avatar

As an American, I need this in hamberders in order to understand, don’t give me none of that commie metric system crap.

/jk

huf,

how much is that in sqrt(football field)? i’m lost.

f2sfljLhdtTZ, w NASA finally figures out how to open a $1-billion canister

OP you need to work on your emotions and stop the clickbaity titles.

fossilesque,
@fossilesque@mander.xyz avatar

Haha, not my title, the article’s. I don’t change them too often because it disrupts my flow going through my RSS feeds while I select things I want to get into in depth myself, and I know publishers make these decisions for a reason. The text is pretty ok though. Feel free to downvote them.

Zachariah, w The New, Farthest Galaxy has Been Found by Webb. Only 280 Million Years After the Big Bang
@Zachariah@lemmy.world avatar

The JWST has done it again. The powerful space telescope has already revealed the presence of bright galaxies only several hundred million years after the Big Bang. Now, it’s sensed light from a galaxy only 280 million years after the Big Bang, the most distant galaxy ever detected.

Prior to the JWST, we had no infrared telescopes with large enough mirrors to detect light from the early galaxies. The Hubble can see near-infrared light, but only has a 2.4-meter mirror. It found only one galaxy from the Universe’s 500 million years. The Spitzer Space Telescope was a dedicated infrared telescope, but it only had an 85 cm mirror. Not only does the JWST have a much larger mirror, but detector technology has advanced so much that the veil obscuring the early Universe is being lifted one ancient galaxy at a time.

AbouBenAdhem, w Scientists hail ‘strongest evidence’ so far for life beyond our solar system

My theory is that the inhabitants of K2-18b are deliberately flooding their atmosphere with dimethyl sulfide to make it unappealing to humans.

HylicManoeuvre, w NASA Shuts Off Voyager Science Instrument, More Power Cuts Ahead to Keep Both Probes Going
@HylicManoeuvre@mander.xyz avatar

Oh noo I’m literally using Voyager to browse Lemmy

5714, w 'It's extremely worrisome.' NASA's James Webb Space Telescope faces potential 20% budget cut just 4 years after launch

Fermi- MAGA-Paradox

fallowseed, w Euclid reveals an Einstein ring around a nearby galaxy

‘nearby’ … speaking of relativity.

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

The sad thing is that this was all telegraphed and baked into the platform. If people are kicking themselves now, it’s too late.

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

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  • Eyekaytee,
    @Eyekaytee@aussie.zone avatar

    Those numbers are interesting but what is the result of this? eg. because NASA has approximately 35% women and 30% minorities, it has what level of increased productivity? what has actually come out of this?

    atro_city, w Astronomers seek global ban on space advertising

    We won't stop polluting until the world is unlivable. Gotta love humanity.

    oce, w A NASA astronaut may have just taken the best photo from space—ever
    @oce@jlai.lu avatar
    lemming, w Dark Matter Black Holes Could Fly through the Solar System Once a Decade

    I thought these were disproved by lack of gravitational microlensing?

    InvertedParallax,

    The main way you’d see that kind of microlensing is if they aggregated.

    But given the way gravity works, they should aggregate, otherwise why call them black holes?

    Classy,

    If they were relatively evenly distributed would that counteract lensing?

    InvertedParallax,

    Yes, it would just be surprising because, gravity should make them not be evenly distributed.

    The whole thing with dark matter is that it’s this magic stuff that causes gravity but isn’t affected by it, which… is not how gravity normally works.

    Though there is still room for it, we just need a better framework other than “I added 3 and 5 and got 12, so obviously I must mean to add 3 and 5 and 4 too”.

    MartianSands,

    You’re mistaken. Dark matter, whatever it is, isn’t affected by anything except gravity. It interacts with gravity just like “normal” matter.

    The evidence is also significantly better than you’re describing

    InvertedParallax,

    Then it should also coelescce, particularly since it doesn’t have the em force to keep it repelled, the universe should be dominated by massive dark matter black holes.

    Yes, there’s math that explains part of the distribution, but also there is 0 force opposing any collapse we’d have a lot more neutron stars and other degenerate matter catalyzed by dark matter.

    We have hypotheses like this when our observations don’t make sense and we need to explain them, it’s definitely a possibility but we still have room to understand the large scale physics at play.

    MartianSands,

    You don’t need a force to prevent collapse if there’s no drag force to slow things down. It would actually be almost impossible for a cloud of dark matter to collapse since any individual particle has momentum and no way to slow down, so they’ll all be in some sort of mutual orbit

    InvertedParallax,

    I’m guessing you’ve seen as many lorentz attractor simulations as I have, what always happens is something like tidal effects or angular momentum means 90% slow down while a few particles get shot out of hell at ludicrous speed.

    The effect is similar to drag, and is basically how we get entropy even without em effects.

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