I have some basic knowledge in physics (at least I think so) and know why objects on the orbit don’t fall down to Earth.My question is how the objects (meteor debris etc) got there.Aren’t they supposed to have the exact speed and trajectory? Did all of them manage to fit in these conditions?
Sorry for possible mistakes, English isn’t my first language
In: Physics
Objects like our moon were the result of an impact. There was a large collision way long ago and resulted in debris getting shot from the earth. Over enough time the moon formed from the remnants in a stable orbit since it didn’t have the right trajectory to collide together again or the energy to escape.
Planets can also catch moons. When a body passes by very close and loses energy in the upper atmosphere it can get captured into orbit. Mars has two asteroid like moons that were most certainly captured this way.
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