Astronomers have studied 3,600 supernovas to discover diversity in exploding white dwarf stars, a vital tool in the investigation of dark energy.

Nearly 4.5 million years ago, two enormous, blazing stars swung close to the solar system. They did not touch the sun, but they came close enough to leave a permanent mark on the thin mist of gas that ...

For every galaxy that's visible from Earth, there are nine smaller ones that we can't see, even with all the technology we've ...

What can imaging supernovae (plural for supernova) explosions teach astronomers about their behavior and physical characteristics? This is what a recent study published in Nature Astronomy hopes to ...

Many moonless evenings the next two weeks are a great time for viewing the best of the summer stars. You may also see the remarkable occurrence of two exploding stars at once, plus the possibility of ...

SN 2021yfj is a new kind of supernova, challenging our understanding of stellar evolution. Its progenitor lost its outer shells well before the supernova happened and only consisted of its ...