Stars that vanish from the sky may be collapsing directly into black holes without going supernova first, a new study of a bizarre binary star system suggests.

Astronomers have documented around 800 cases of stars mysteriously vanishing over the past 70 years. New research from the University of Copenhagen suggests these stars might be collapsing ...

However, if some massive stars are collapsing completely into black holes without supernova explosions, then they cannot contribute to the creation and recycling of elements.

Magnetars are neutron stars with the universe's most powerful magnetic fields, often hundreds of trillions of times more powerful than Earth's magnetosphere.. Low-field magnetars, first discovered ...

Betelgeuse, one of the most visible stars in the Earth's sky, is behaving very weirdly. The red giant — a star not far from death — is now shining about 50% brighter than it usually would ...

Light that escapes collapsing stars and dust clouds may sport an unusually blue hue. Light emitted within these gravitationally unstable objects can get compressed and thus become bluer ...

Stealing gas from their siblings could leave stars with a motley crew of planets – including ones with backwards orbits. Our solar system is thought to have formed from a collapsing cloud of gas ...

An animation shows how a series of supernovas beginning 14 million years ago created the Local Bubble, a cavity of very thin, hot gas in our sun's corner of the Milky Way.