... on Feb. 20, 1997, when the spacecraft came within 363 miles of the Jovianmoon ... that both Earth's moon and the Jovianmoon, Ganymede, have huge craters that are 3.8 ... which also will include encounters with two other Jovianmoons, Callisto and Io ...
... only make educated guesses about the structure of the Jovianmoons," said Dr. John Anderson, a planetary scientist at NASA's ... Galileo's findings on the Jovianmoon Callisto revealed a much different structure than Europa. ...
... Look closely at Jupiter and you can see yet another Jovianmoon , Io, just visible against Jupiter's glare! . Tomorrow's picture: Comet Stonehouse . ...
... Of the 61 identified moons in the solar system, only three other satellites are known to have atmospheres: Jupiter's volcanically active moon Io (sulfur dioxide), Saturn's largest moon Titan (nitrogen/methane) and Neptune's largest moon Triton (nitrogen ...
... The range is 1.4 x 10 6 km. The faint line is the Jovian ring. Adrastea is a small dot above the arrow. ... The exposure time was 96 seconds. The faint band is the Jovian ring and is smeared because of parallax and spacecraft motion. ...