Starship Asterisk*

Assuming that the hypothesis that each galaxy has a Black Hole at its centre is correct, what would happen if the two Black Holes met? Following on from that thought, the most recent hypothesis on Matter in the Universe suggests that only ten percent of the Universes’ mass is “Visible Matter”. Could...

If the moon has one side always facing the planet, wouldn’t the craters on the edge of the moon’s profile which faced out into space, be elongated due to the angle at which the objects would strike the moons’ surface. Although I assume that some objects may also come in at a tangent to the planet an...

Why are there no craters on the left half of the moon? There seems to be a very distinct line between the cratered area on the right and the un-cratered area on the left. Shouldn't there be a gradual reduction in the cratering?