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This is a link post Space wow bigness thing

(, Mon 21 Sep 2026, 12:12, Reply)
This is a normal post Pretty, but...
What's the Roche limit and innermost stable circular orbit for a rocky body around Sag A*?
How much radiation could our magnetosphere handle?
Is our enjoyment time measured in minutes or seconds?
Where has Venus's opaque atmosphere gone?
(, Mon 21 Sep 2026, 23:12, Reply)
This is a normal post I only promised space wow bigness thing

(, Tue 22 Sep 2026, 3:12, Reply)
This is a normal post Space wow bigness thing delivered.

(, Tue 22 Sep 2026, 13:13, Reply)
This is a normal post I'm not sure which would get you first
The radiation or insanely high tides. You might be safe from drowning if you could get to the top of a mountain.
On the plus side, to be in a stable orbit the earth would need to complete a revolution in something under 5 hours, so you'd be looking at almost five Christmases every day!
(, Tue 22 Sep 2026, 17:10, Reply)
This is a normal post I think the with the tidal forces Earth could rapidly become like Io.
Also the moon would be tugged around a lot more than usual...
Best case scenario would be ejection into wildly different orbits for us and the moon, ideally with the Earth being flung out farther and the moon being swallowed whole.
Seems more likely we'd both turn to lava then hit each other though.

I tried using online Roche calculators but the numbers are too big and my brain is too small.
(, Tue 22 Sep 2026, 18:08, Reply)
This is a normal post I've always wanted to see what the big black hole looks like in uranus
/autocomplete
(, Tue 22 Sep 2026, 5:38, Reply)
This is a normal post THERE'S A BLACK HOLE AT THE CENTRE OF THE MILKY WAY?!?!
Why is no one more worried? That sounds serious.
(, Tue 22 Sep 2026, 20:27, Reply)
This is a normal post Nothing to worry about they're just a point of mass, they don't suck everything in, it's fine.
Replace the sun with a black hole of the same mass and all the planets stay in the same orbits, just darker and colder.
(, Wed 23 Sep 2026, 2:35, Reply)
This is a normal post Phew
Thanks. Just when you think you're getting a handle on things...
(, Wed 23 Sep 2026, 14:43, Reply)