astronomy

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prole, w [Eric Berger] Seeing this eclipse is probably the highest-reward, lowest-effort thing one can do in life

It’ll be interesting to see just how little this is in the national news given the location of the path compared to times when the path of an eclipse has gone through major metropolitan areas in the northeast or west coast. Almost an indirect measurement of science education in each area. I didn’t even know there was an eclipse coming until this article.

Or maybe I’ll be proven wrong…

XeroxCool,

That sounds more like a normal population density representation. Everyone hears about CA or NY news because they have more significant national and global impacts, through number of affected people and volume of business. News about the state of Arkansas is less visible since it has less population than any of the major cities in the aforementioned states.

Despite that, I’ve seen plenty of coverage specifically because, compared to the 2017 American total solar eclipse, this one is more accessible to a vastly greater population: namely DFW TX and NYC. NYC has a longer drive, but the northeast is an incredibly dense portion of the country.

maculata, w Daily Telescope: Peering into the remnants of an 800-year-old supernova

Cosmic sphincter

lordmauve, w A Mysterious Impact Left 2 Billion Craters On The Surface of Mars

Real scientists would say two gigacraters.

Shdwdrgn, w Northern lights predicted in US and UK on Monday night in wake of solar storms

But the solar flare was yesterday, if there was going to be any good viewing of auroras it would have been last night, or more likely a couple nights ago (from US time zones). The peak of it occurred shortly after lunch yesterday and it’s calmed down back to normal today.

mihnt,

I mean, these are highly funded government agencies reporting this from both sides of the planet. You know something they don’t?

Shdwdrgn,

The agencies were correct about the information, however unlike OP apparently I know how to adjust for time zone differences. Monday morning in Australia is still Sunday in the US, so yes that would have been the correct time for the warning. But this article was posted here a day after the event occurred, all of the warnings expired, and the Kp index had dropped back down to more moderate levels. At the peak of the event the Kp index reached around 8.0. When I posted my comment yesterday it was sitting at 1.66, well below the threshold for seeing auroras anywhere in the continental US. If you had any chance of seeing auroras here it would have had to be Sunday night, not Monday night.

ringwraithfish, w Most Astronauts Get ‘Space Headaches.’ Scientists Want to Know Why

If Constellation on Apple TV is right, then it’s an indication that the person has become quantum entangled with their alternative self in another universe.

Good show btw if you are looking for something more psychological with a sci-fi background.

Fiivemacs, w Giant volcano discovered on Mars

I dunno about giant. Looks pretty small from here.

wargreymon2023, w A NASA mission that collided with an asteroid didn't just leave a dent. It reshaped the space rock

This fortune points to Trump 2024

SubArcticTundra, w Webb discovers neutron star within supernova remnant - NASASpaceFlight.com
@SubArcticTundra@lemmy.ml avatar

Webb discovers the Eye of Sauron

Etterra, w Webb discovers neutron star within supernova remnant - NASASpaceFlight.com

The giant space maw is hungry.

HootinNHollerin, w A Mysterious Wave-Like Structure in Our Galaxy Found to Be Slowly Slithering

Are the wobbles just from the gas cloud being pulled by gravity from everything?

xilliah, w NASA looking for 4 volunteers to spend a year living and working inside a Mars simulator

Just need an old pc with sim city and rollercoaster tycoon.

Rubisco, w Big, doomed satellite seen from space as it tumbles towards a fiery reentry on Feb. 21 (photos)

In an update posted on Sunday (Feb. 18), ESA said that the rentry ERS-2 is expected to take place on Wednesday (Feb. 21) at 10:19 a.m. ET (1519 GMT), plus or minus around 19 hours. This uncertainty is due to the “influence of unpredictable solar activity, which affects the density of Earth’s atmosphere” and can therefore change how much drag pulls on the satellite on its way down, ESA wrote.

Plus or minus 19hrs due to the sun’s effect on the density of the atmosphere. Mind blown.

threelonmusketeers, w Water found on the surface of an asteroid for the 1st time ever

Ah, SOFIA. I miss her.

kalkulat, w What would happen if you moved at the speed of light?
@kalkulat@lemmy.world avatar

‘Speed of light’ compared to what? is what you need to worry about. Most things in the universe won’t be moving at the speed of light compared to you (or whatever you’re inside of), and when you run into them, you won’t last for long.

Kata1yst,
@Kata1yst@kbin.social avatar

That's the neat part of the speed of light. It's the speed of light for every reference frame, no matter who is looking at you or from where.

kalkulat,
@kalkulat@lemmy.world avatar

If you’re zooming past the Earth at the speed of light headed straight at the Moon, you’ve got about 1 second to enjoy that before you make a very, VERY large crater.

If you change course and head straight at a frozen tardigrade, it will make a VERY large crater in you.

Kata1yst,
@Kata1yst@kbin.social avatar

To actually reach the speed of light you'd be massless, so the only damage, would be from momentum transfer, at which point your particles would be reflected or absorbed like light.

But that aside, mostly I was referring to your statement:

'Speed of Light' compared to what?

Which is really not a concern. It's the speed of light for everyone with respect to everything, or it isn't the speed of light. Like, two beams of light going in opposite directions don't see the other light beam going at 2x the speed of light, just at the speed of light with lots of time dialation.

kalkulat,
@kalkulat@lemmy.world avatar

You already knew the answer to ‘What would happen if you moved at the speed of light’ was was “To actually reach the speed of light you’d be massless.” No shit. The question was already massless.

threelonmusketeers, w Nuclear power on the moon: NASA wraps up 1st phase of ambitious reactor project

Seems better suited for !space or !NASA. Cool project though.

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