Some stars explode into a nova quickly; others can take more than a month. Scientists are only beginning to understand why.

A new explanation for the solar system's radioactive elements suggests Earth-like planets might be found orbiting up to 50 ...

NASA's James Webb Space Telescope (JWST) has identified the earliest supernova on record, according to a statement released ...

Astronomers are a step closer to cracking one of the secrets of dark energy—the mysterious force believed to be causing the universe's accelerated expansion.

For centuries, Europeans thought that eternal daylight saturated the cosmos. The shift to a dark universe has had a profound ...

Astronomers have sighted the oldest known stellar explosion, dating back to when the universe was less than a billion years ...

New simulations of Milky Way-like galaxies reveal that the strange split between two chemically distinct groups of stars may ...

Researchers have found a razor-thin, rotating string of galaxies inside a massive cosmic filament, revealing unexpected ...

Learn how new high-resolution images of two nova eruptions offer fresh insight into how these stellar explosions release ...

Tyson’s ultimate goal was to image large swathes of the sky, measuring how galaxies’ shapes distorted as their light ...

The noted astrophysicist will discuss understanding our place in the world and using that perspective to create meaning for ...

A joint effort between two of the world’s largest neutrino experiments has brought scientists closer to understanding how the ...