QUESTION: I heard there might be life on Jupiter's moon. Is this true? If so will more attention be casted towards it and Mars too? ANSWER from Charles Whetsel on April 14, 1997: While no one has hard evidence of life from any planet other than the earth (even the Mars meteorites only "suggest" that the fossilized forms inside may have once been alive), Europa, one of the moons of Jupiter has a surface of frozen glaciers and what appears to be oceans of water underneath. Scientists think that unlike the earth's oceans which are heated from above (the sun) and get colder as you go deeper, these oceans may be heated from the bottom, by processes similar to those which cause volcanoes on the earth. If so, with enough water and heat, it is possible that life could exist under the ice sheets, but this is just a theory, not based on any evidence yet. Europa has been getting a lot of attention recently and many people are proposing to send probes there to make other scientific measurements.