That means if aliens were to exist, and they were located some 66 million light-years from Earth, they’d theoretically still ...

In last week’s The Universe column, I fielded a reader’s question about galaxy collisions in an expanding universe. The answer deals with vast distances, inscrutable forces and the ultimate fate of ...

The idea of dinosaurs roaming alien planets is compelling, but science paints a more cautious picture. No direct evidence of extraterrestrial life has ever been found. Even Mars, the most promising ...