okt 112013
Water-rich Building Blocks Show Signs of Possible Past Life

  Astronomers using NASA’s Hubble Space Telescope have found the building blocks of solid exoplanets that are capable of having substantial amounts of water. This rocky debris, currently orbiting a white dwarf star called GD 61, is considered a relic of an exoplanetary system that survived the burnout of its parent star. The finding suggests [continue reading]

apr 122012
Astronomers witness death of stars - in a 'solar sandstorm'

Sand storms in space have been discovered by astronomers watching the death-throes of giant stars. Three ‘red giants’ were observed having their atmospheres ripped away by a ‘superwind’ containing dusty grains of silica.  Astronomers have discovered sandstorms in space after using state-of-the-art techniques to search the atmospheres of distant, dying stars.  Superwinds carrying the dust that [continue reading]