Jupiter's Moons- Ganymede
Ganymede was discovered by Galileo Galilei in around January of 1610.
Ganymede is 390,400,000 miles from Earth. It is the biggest moon of Jupiter and in our entire Solar System. Ganymede is also the only moon known to have a magnetosphere.
The darker regions of Ganymede are older heavily cratered parts and the lighter regions are younger and posses unusual grooves, the origin of the grooves are still under investigation. 40% of Ganymede is darker and of course the lighter region takes up 60% of Ganymede.
The image below is a global image mosaic of Jupiter's moon, Ganymede created with images from the Voyager and Galileo mission.
Ganymede has very thin oxygen, which is too thin for life support. Earlier I mentioned Ganymede has a magnetosphere, typically found in planets, including Earth and Jupiter, a magnetosphere is a comet-shaped region where charged particles are trapped or deflected. Ganymede’s magnetosphere is entirely embedded within the magnetosphere of Jupiter.
Gabbie A. 3/24/2015 2nd period