For the first time, astronomers have spotted a star that exploded not once, but twice. A new image of a roughly 300-year-old supernova provides visual evidence that some dying stars undergo a double ...

In October 1604, astronomer and mathematician Johannes Kepler spotted a new star in the sky and began tracking it. Over the course of several weeks, the star remained visible in the daytime and ...

Stars often die with a final burst of beauty. For the first time, astronomers have captured visual proof that a star can ...

Using a combination of telescopes, astronomers have characterized the closest supernova linked to a fast X-ray transient. The ...

Jets that failed to punch through the outer shell of a dying star are the sources of mysterious X-ray flashes that have ...

In other cases, another member of the system will go on to form a second white dwarf. If gravitational instabilities bring ...

The shattered star at the center was once a white dwarf, a stellar ember no larger than Earth, yet almost as heavy as the Sun ...

Low-mass stars like our Sun expel their outer layers as a planetary nebula because of what is going on in the star’s core as it ages.

Very massive stars (VMSs) have had a massive impact on the formation of our universe. However, there aren't very many of them ...

Named GW 231123 after the date it was recorded on 23 November 2023, it's the most massive black hole collision we've seen yet ...

There’s a chance we could see a white dwarf star explosion this year. T Coronae Borealis, a binary star system and recurrent nova located roughly 3,000 light-years from Earth, is expected to erupt ...