A surface mass ejection (SME), depicted in this illustration, is a relatively recently discovered phenomenon in stellar astrophysics. They are similar to coronal mass ejections but on a far larger scale. During an SME, a star can release hundreds of ...

Artwork of an imaginary planetary nebula. This is a glowing shell of gas cast off by a star near the end of its life. The star can be seen at the centre of the nebula. The Sun will one day form a planetary nebula, once its internal stock of hydrogen ...

To harness much more of the Sun's abundant power, our descendants have encased the star in a cage of billions of moving parts - a Dyson swarm. This energy can then be transmitted to wherever it is needed in the Solar System....

To harness much more of the Sun's abundant power, our descendants have encased the star in a cage of billions of moving parts - a Dyson swarm. This energy can then be transmitted to wherever it is needed in the Solar System....

This once normal star, having exhausted its internal supply of hydrogen, has expanded, growing into a gargantuan caricature of its former self called a red giant. It is dozens or hundreds of times its original size. Any nearby planets will be engulfe...

Astronomers at NOIRLab (Tucson, Arizona, USA) have detected what they believe is the first sighting of the destruction of a gas giant planet caused by the expansion of its ageing red giant star. All sun-like stars expand as their nuclear fuel runs ou...

Two white dwarfs are approaching each other on an inbound spiral that can only result in destrucion, sending gravitational waves deep into the cosmos. They will soon collide to form a Type 1a supernova....

Artwork of a red dwarf star emitting a stellar flare. A red dwarf is a small and relatively cool star on the main sequence, either late K or M spectral type. They range in in mass from a low of 0.075 solar masses to about 50% of the Sun and have a su...

... or the chance mergers of neutron stars, astronomers have concluded that this GRB came instead from the collision of stars or stellar remnants in the jam-packed environment surrounding a supermassive black hole at the core of an ancient galaxy.' This ...