Whether space-time exists should be neither controversial nor even conceptually challenging, given the definitions of "space-time," "events" and "instants." The idea that space-time exists is no more ...

Neil deGrasse Tyson explains why we can’t go faster than light—because time itself stops. Relativity reveals a mind-bending universe where light exists outside time. Science fiction? Nope—science fact ...

Astronomers used a method once theorized by Albert Einstein to find a mysterious and rare planet on the edge of our galaxy. The planet, AT2021uey b, is a Jupiter-sized gas giant located about 3,200 ...

The Webb telescope detected interstellar dust from a galaxy that was 114,000 light-years from the galactic core, defying ...

Nowadays, the dark of night is interspersed with the light of stars. But before the stars were born, did light shine at the beginning of the universe? The short answer is "no." But the long answer ...