nov 022012
 
Asteroid Belts at the Right Place Needed for Complex Life?

  Solar systems with life-bearing planets may be rare if they are dependent on the presence of asteroid belts of just the right mass, according to a study by Rebecca Martin, a NASA Sagan Fellow from the University of Colorado in Boulder, and astronomer Mario Livio of the Space Telescope Science Institute in Baltimore, Md.  [continue reading]

mei 102012
 
Billions of Free-Floating Life-Bearing Planets in Milky Way

  Researchers say life-bearing planets may exist in vast numbers in the space between stars in the Milky Way A few hundred thousand billion free-floating life-bearing Earth-sized planets may exist in the space between stars in the Milky Way. So argues an international team of scientists led by Professor Chandra Wickramasinghe, Director of the Buckingham [continue reading]