Salty water snuffed out life on Mars?
Boston: Life on Mars may have been snuffed out early on because the water there was too salty, a biologist involved in exploring the red planet said. "Mars has been a very dry place for a very long time,' said Andrew Knoll, an expert member of a team operating two US robots that are currently exploring Mars. "The best place to look for life is in the earliest history,' he added.