(km) long and scars from ice-spewing volcanos. The features provide evidence that water, heat and organic compounds may have combined to create an environment suitable for the start of life, Galileo scientists told a newsconference at NASA`s Washington headquarters. Scientists are eagerly awaiting Galileo`s closer look at Europa. It will pass within 364 miles (587 km) of the moon on Feb. 20. Galileo, which was launched in 1989 and arrived at Jupiter in 1995, is making a two-year tour of Jupiter.