The cosmic pinwheel that astronomers feared could one day shower Earth with lethal gamma rays may not be as dangerous as once ...

Astronomers have uncovered a new mystery surrounding a pinwheel-shaped star system—while, fortunately, revealing it is not likely to live up to its "death star" reputation. Located approximately 8,000 ...

Life could have the time and energy to arise and prosper on Earth-like worlds in the rapidly shrinking "Goldilocks zones" ...

New research suggests the violent explosions of dying stars may have caused two of Earth’s biggest mass extinctions millions ...

An artist’s concept of the famous Wolf-Rayet 104 “pinwheel star,” previously nicknamed the “Death Star.” New research ...

Decades of W.M. Keck Observatory research on the famed Wolf-Rayet 104 “pinwheel star” system has taken a new turn, revealing more mystery but reducing concerns about its potential as the “Death Star.” ...

A supernova is a cataclysmic stellar death that leaves behind a black ... Betelgeuse, about 650 light-years away from Earth, is one of the brightest stars in the night sky. Credit: Alan Dyer ...

Bruhweiler a few frequently asked questions about the death of the ... state of low-mass stars, including the sun. Although the sun is a million times the volume of Earth, a white dwarf is roughly ...

But Earth has faced at least five mass extinctions ... Events Supernovas are powerful explosions marking the death of massive stars. They spread elements like carbon, calcium, and iron across ...

At least two mass extinction events in Earth's history were likely caused ... these super-powerful blasts – caused by the death of a massive star – may have previously stripped our planet's ...