Re: Craters
Yes, Nick, there are very few elongated craters on the Moon. However, most of the Moon impactors must have come through some angle, and not just from the zenith. I remember seeing that even from an angle (maybe from a documentary about Eugene Shoemaker), impactors create circular craters on the Moon. Not so on Mars, or at least not to the same extend.
Regards,
Raoul