Water discovered in remnants of extrasolar rocky world orbiting white dwarf

Astrophysicists have found the first evidence of a water-rich rocky planetary body outside our solar system in its shattered remains orbiting a white dwarf. A new study by scientists at the Universities of Warwick and Cambridge published in the journal Science analysed the dust and debris surrounding the white dwarf star GD61 170 light years away.

Einstein's theory of relativity highlighted by pulsar and white dwarf

An international research team led by astronomers from the Max Planck Institute for Radio Astronomy recently used a collection of large radio and optical telescopes to investigate a pulsar and its white dwarf companion.

Dying stars' planets can still host life

Life may well exist on planets orbiting dying stars - and, if it does, there's a good chance we'll find it within the next decade, say astrophysicists.

Brightest-ever supernova explained

Astronomers reckon they've found the cause of the brightest stellar event ever recorded: a supernova first observed on April 30 1006 that continued to shine for three years.

Swift satellite throws light on origins of supernovae

X-ray and ultraviolet observations from NASA's Swift satellite have given new infoprmation about the origins of Type Ia supernovae.

Our galaxy could hold thousands of 'time-bomb' stars

Astrophysicist Rosanne Di Stefano compares it to the Hollywood blockbuster 'Speed' - a newly-described type of star that's destined to explode if it slows down.