mei 032012
 
Four white dwarf stars caught in the act of consuming ‘earth-like’ exoplanets

  University of Warwick astrophysicists have pinpointed four white dwarfs surrounded by dust from shattered planetary bodies which once bore striking similarities to  the composition of the Earth. The inner region of an exo-planetary system where four terrestrial planets orbit a solar-like star. Using the Hubble Space Telescope for the biggest survey to date of the [continue reading]

mrt 282012
 
Astronomers detect vast amounts of gas and dust around black hole in early universe

Using the IRAM array of millimetre-wave telescopes in the French Alps, a team of European astronomers from Germany, the UK and France have discovered a large reservoir of gas and dust in a galaxy that surrounds the most distant supermassive black hole known. Light from the galaxy, called J1120+0641, has taken so long to reach [continue reading]