Evidence of bacteria on Europa? [1-9-2002]
Jupiter's moon Europa is thought to be one of the most likely abodes for microscopic life in our solar system. The ice-covered world may have liquid water, energy, and organic compounds - all three of the ingredients necessary for life to survive.  

Titan: Biological Birthplace? [10-19-2001]
Saturnís giant moon Titan, cloaked in a thick nitrogen atmosphere laced with hydrocarbons, could provide a laboratory in the sky for scientists seeking insight into the origins of life.  

Europa: Chewy or Crunchy? [6-22-2001]
For geophysicist William B. Moore, the question of whether life exists on Jupiter's moon Europa boils down to whether the moon's center is chewy or crunchy.  

How Jupiter Got Big [5-7-2001]
How did the largest planet in our solar system form? New theories on how planets like Jupiter form put traditional theories to the test.  

Focus on Europa [4-13-2001]
Scientists from a variety of disciplines met recently to consider the possibility of life on Europa, and to plan how to look for it.  

Through Thick or Thin: Exploring Europa's Outer Layer of Ice [3-16-2001]
When NASA's Galileo spacecraft sent back images and data of the Jovian moon Europa, scientists began thinking seriously that life just might exist on this enigmatic, frozen world.  

Ganymede's Liquid Past [3-9-2001]
Long swaths of bright, flat terrain on the surface of Jupiter's icy moon Ganymede may testify that water or slush emerged there about a billion years ago, say planetary scientists.

Jovian Moons [2-2-2001]
Jupiter's four largest moons were discovered by Galileo in 1610. Three of them might hold oceans of liquid water beneath their icy exteriors. Liquid water is a prerequisite for life.  

Without Jupiter, Home Alone [1-29-2001]
The giant planet Jupiter swallows up asteroids and comets, or flings them into space. Without Jupiter, comet and asteroid impacts might have wiped out any life on Earth.