The Mars Express orbiter has kept an eye on an elongated cloud above Arsia Mons volcano for the last few years. The cloud is ...

Tiny glass beads from Apollo missions reveal Moon's ancient volcanic eruptions through sparkling mineral coatings.

During the week ahead, watch for Mars in the evening sky as it moves its way slowly night by night, left to right, above the bright star Regulus in the constellation of Leo, the Lion, situated above ...