New research is giving both optimistic and pessimistic forecasts for the
chance of finding life on Jupiter's moon Europa.
by Vanessa Thomas
Since planetary scientists began to realize that the Galilean moon Europa
might harbor an ocean of water underneath its icy surface, they have dreamed
of the possibility that aquatic life might thrive there. A pair of space
scientists believes there is plenty of biotic material on Europa to develop
life. But another researcher counters that the thickness of
