It’s a beautiful night. Just you, a bottle of wine and your partner drifting through the cosmos in a UFO. As your caress their green skin, you know that tonight’s the night you’re mating with an alien ...

Astrophysicist Neil deGrasse Tyson says humans should think seriously about how they would respond to extraterrestrial life—though not because he believes it is imminent. Newly released U.S.