The Cluster is a form of life organized on principles so different from anything on Earth that understanding it requires dismantling most of what you think life means — and the video that explains it ...

A man who claims to be a time traveler from the year 2118 has made a series of extraordinary predictions about the future, ...

The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...

The mission is still in the early stages of its conception, with contracts given recently to firms.

One of them has definitely been beamed up before.