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Missed opportunity for the exact asteroid diameter that would collapse into a black hole with the earth's combined mass, as bad news for the solar system. Also the 100 trillion neutrino asteroids passing through the earth a second, although they mostly miss colliding.

Ahhhh, the fond fears of planetary annihilation by an asteroid that existed before the Tangerine Tyrant and the Muskrat took over our nation. As my grandmother used to say, that (fear) doesn’t amount to a hill of beans at this point. Just redirect it to the US only and spare everyone else.

Mostly. It’s also a parody of our current political climate, the effects of misinformation, the oligarchs, and all the things. It’s actually hilarious.

Under the current circumstances, I’m going to adopt this motto from a waitress at a restaurant that did exactly this one tourist holiday morning in ABQ, so long ago: “when you run out of eggs, all you can do is laugh.” I think we have run out of eggs on this planet.

Asteroid collisions are often expressed as joules of energy with respect to the Hiroshima nuclear explosion. This released 10^ 18 joules of energy. The asteroid that caused Chicxulub crater, 66 million years ago, released 10^23 joules of energy. This is 100k times more energy than 10^18, and so on..

Ummm, any agency that would be tracking asteroids are on the chopping block so there would be nobody to track it. And if they could track it, they've probably been forbidden from communicating with the public, soooo, it's been nice knowing ya.

Pluto is a good example of the argument. The general idea is pulled into spherical under its own weight. How spherical is a bit arbitrary, the looser the definition the more things get considered planets. Then there's Psyche which is an asteroid believed to be a planet core remnant

It's only a planet if it comes from the Valeé Planéte in France, otherwise blah blah blah blah blah.

A planet needs to be spherical and clear its own orbit. A rogue planet doesn't have an orbit so the line between asteroid and rogue planet is "massive enough to be crushed into a sphere under its own weight".

Important information, seen something come in red hot, iron? It exploded in red hot sparks. Lovely. Space junk but I think a meteor that got hot and blew up, over Bondi Beach it was, very cool thing to see! Like magic.

My guess would be somewhere between 1,000 and 10,000, because that's when the planet stops being the dominant force in the impact... ...except, even then, it bounces like a crunchy magma bouncey ball, staying round-ish, so it would need 2 impacts to flatten, and even that would be very luck based.