Anonymous
Favorite Answer
i was going to make a really dumb guess about that, but i always like to google stuff i'm not sure about, and turns out there's an explanation posted for this right there for you
https://www.scienceabc.com/nature/universe/why-are-impact-craters-on-the-moon-round-and-not-some-other-shape.html
"Short answer: When a meteor hits the lunar surface, a shockwave spreads out in all directions and the impact creates a dent in the surface that is much bigger than the size of the impacting object itself. Since the impact sprays ejecta in all directions in equal proportions (just like the shockwave of an explosion), the direction and incident angle of the impact become irrelevant in determining the shape of the crater."
Ronald 7
Because there was no Atmosphere to slow or deflect them
quantumclaustrophobe
Speed. High impact velocities create a more uniform shock wave, and angle has less affect. Slower impacts have less energy to absorb, and the impact angle will have more affect.
Tom S
See link for a lengthy answer to this, in short the impact creates an explosion, explosions "go out" equally in all directions.
https://www.scientificamerican.com/article/why-are-impact-craters-al/
Adullah M
There is no atmosphere on the moon to divert any impact on its craters.That is why.