British startup Pulsar Fusion has unveiled Sunbird, a space rocket concept designed to meet spacecraft in orbit, attach to ...

V664 Cas is a binary system consisting of a white dwarf, a stellar corpse, and a red giant star ... ejected from a star as it exhausted its supply of fuel to sustain nuclear fusion in its core.

This is a huge nuclear ... stars or in nuclear weapons,” said Brian Appelbe, a research fellow from the Centre for Inertial ...