What I would give to be able to see how that all came together over that timespan in person. Have to imagine observing something as dramatic as this kind of planetary collision over just half a day or so would have been awe inspiring.
Someone on YouTube did it here. The CGI isn't quite as "realistic", but it's something, and honestly once everything is lava, it doesn't make much of a difference anyway.
It will never not fuck with my head that every particle in the universe is gravitationally attracted to every other particle in the universe. I don't recall if that also somehow applies for light cones that don't overlap but yeah.
Except it's kinda not. One example: Gravitational waves traveling with light speed. So the expansion of the universe is causing gravitational waves to never arrive.
The ejecta formed a ring. Larger chunks fell first the moon was shit thrown far enough and had enough mass to remain and the dust eventually (years) was cleared.
Gravity is the weakest of the four fundamental forces. It's incredibly weak by comparison. A tiny magnet can overcome the entire gravity of a planet, for example.
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u/Steven_Swan 9h ago
Gravity is strong. These enormous masses will pull themselves together quick.