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

Supernovae aren't one of the JWST's main science themes, but the perceptive telescope is full of surprises. Recently, it ...

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.