Most of the moon's craters were formed by asteroid crash landings millions or billions of years ago, but more recent collisions are also making their mark.
Where did the moon come from? Here's a crash course on lunar beginnings.
Summer is nearly here. Ever wonder why moths fly toward bright lights? Find out on today's Moment of Science.
Rip tides have taken on mythical proportions as killer waves.
Scientists have found fossil evidence from tropical corals that existed at that time, and they have about 400 daily growth rings per year.
Scientists have a new estimate for the geological age of one of Mercury's oldest regions.
When Neil Armstrong took his "one small step", the impression he made was lasting.
The horizon line can be a tricky thing to measure...