Light traveling toward Earth for more than 13 billion years finally reached the mirrors of the James Webb Space Telescope, carrying with it the signature of a star’s final, violent moment. Astronomers ...

An international research team used Hubble, TESS, and other instruments to witness the “Rosetta Stone” of supernovas. Its findings could help astronomers predict when other stars in the universe are ...

In two separate papers published in Physical Review Letters, researchers investigated the nuclear reactions that take place inside supernovae and X-ray bursts—two of the universe's most powerful ...

One of the largest known stars in the universe underwent a dramatic transformation in 2014, new research shows, and may be preparing to explode. The evidence suggests we may be witnessing, in real ...

Astronomers have captured images of two stellar explosions—known as novae—within days of their eruption and in unprecedented detail. The breakthrough provides direct evidence that these explosions are ...