Isaac Arthur on MSNOpinion

Alien invasions sounded terrifying - until most of them turned out to be absurd

Alien invasion stories are supposed to be terrifying, but many of the reasons sci-fi gives for attacking Earth fall apart the ...

Was That an Alien Invasion? No, Just a Falling Rock, NASA Says.

A fireball reached 75,000 miles per hour before breaking up miles above New England, NASA said, causing a boom that alarmed ...