About 800 million years ago, a collision in the main asteroid belt may have triggered a rain of debris towards Earth, Mars ...

Prior moon rock samples, including from Apollo, seem heavily influenced by one impact. The farside samples tweak the story.

An amateur astronomer from Quebec spotted an unusual circular depression while planning a camping and road trip through the ...

Acclaimed light and space artist James Turrell has been working on a mammoth art project northeast of Flagstaff for almost 50 ...