For over 30 years, astronomers have relied on Type Ia supernovae to measure the universe’s expansion. These stellar explosions serve as cosmic beacons, allowing scientists to track how space itself ...

SN2021yfj 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 ...

Betelgeuse confirmed to have a small companion star Discovery made using Hubble and Chandra telescopes Companion likely a ...

In November 1572, a brilliant new star appeared in the constellation Cassiopeia, shining so brightly that it was visible ...

The first double-burst supernova ever observed, SNR 0509, is a historic discovery that reveals how white dwarfs explode in ...

Astronomers have spotted something remarkable hiding in the depths of the Milky Way—a nearly perfect circle formed from the debris of an exploded star. Known as Teleios, from the Greek word meaning ...

To continue reading this content, please enable JavaScript in your browser settings and refresh this page. Preview this article 1 min A new discovery could help ...

Astronomers have seen a lot of stars explode, but one unusual stellar death is forcing them to rethink what they thought they knew. In 2021, a star about 2.2 billion light-years away ended its life in ...

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