The subject of UFOs and aliens is vast and complex, making it impossible to summarize in one article. Flying saucers/UFOs made headline news throughout the world in 1947, sparked by two major, highly ...

A lunar far side experiment finds no alien signals but proves the Moon could offer the quietest listening post yet for future ...

If you trace the animal family tree back through the fossil record, the trail usually goes cold about 539 million years ago. Before this boundary—the start of the famous Cambrian explosion—multicelled ...

Once a baffling theory, quantum mechanics has evolved into a driving force behind modern technology and frontier research.