The Case Strengthens That Humans Actually Are from a Distant Planet

Life on Earth might actually be Martian — or Europan, or Titanese. Or maybe our ancestors came from outside our solar system, flung up from a distant planet (perhaps Caprica?) billions of years ago and migrated to Earth. It all sounds far-fetched, but new research suggests microbes can survive an asteroid impact big… » 5/21/08 9:35am 5/21/08 9:35am