Last Updated: Sunday, December 22, 2013, 12:52
Researchers have found that atmospheric particles that were previously thought to be useless for making ice crystals may be the driver of arctic snows.
Last Updated: Wednesday, June 20, 2012, 15:26
Researchers at MIT have determined the size of carbon dioxide snow particles in clouds at both Martian poles from data gathered by orbiting spacecraft.
more videos >>
