Science fiction stories about “alien” invaders are often political allegories for anxieties around immigration. Now, a ...

Some people look so unusual, it’s as if they don’t quite belong to Earth. Whether it’s their striking features, extraordinary proportions, or simply the way they carry themselves, they stand out in ...

Humans might not know of any intelligent beings beyond Earth, but if they exist, they might already know about us. New research shows that radar systems at commercial and military airports are ...