资讯

HUMAN : STREAM IT OR SKIP IT?

Human is a five-part Nova series, produced by the BBC, that takes a look at the origins and survival of the human race. The host is paleoanthropologist Ella Al-Shamahi, and she travels to various ...

Two 'Guest Stars' Appear Simultaneously in the Sky: Is It Just a Coincidence?

Gueststarsincludenotonlynovasbutalsosupernovae,comets,andothertransientcelestialbodies.In1181AD,asuperno… ...