Who Created A Smooth 200-Yard Trench On Mars?

Well… duh.
Other theories (notably less awesome than an all powerful, semi-emo superman) include an “oblique impact, when a small body struck the surface at a very shallow angle.”
Boring.
[Pop Sci]

Well… duh.
Other theories (notably less awesome than an all powerful, semi-emo superman) include an “oblique impact, when a small body struck the surface at a very shallow angle.”
Boring.
[Pop Sci]