Media Information

 
 
 
Collection:
NASA Astronomy Picture of the Day Collection
Title:
Ganymede: Moonquake World
Explanation:
Ganymede [ http://seds.lpl.ari…] probably undergoes frequent ground shaking events not unlike terrestrial earthquakes. Ganymede [ http://www.c3.lanl.…], the largest moon of Jupiter [ http://antwrp.gsfc.…] and the Solar System [ http://antwrp.gsfc.…], has a thick outer coating of water ice. Passing Voyager spacecraft found a large number of cracks and grooves in the ice so it is thought that Ganymede, like the Earth [ http://antwrp.gsfc.…], has large shifting surface masses called tectonic plates. Ganymede was discovered by Galileo [ http://galileo.imss…] and Marius [ http://seds.lpl.ari…] in 1610, and is larger than the planets Mercury and Pluto. The NASA spacecraft Galileo [ http://www.jpl.nasa…] is scheduled to arrive at Jupiter is December of 1995.

Tomorrow's picture: Europa: Ancient Water World
Credit and Copyright:
NASA [ http://www.nasa.gov/], Voyager [ http://vraptor.jpl.…], Copyright Calvin J. Hamilton
facet_when:
1995
facet_when:
1610
facet_where:
Ganymede
facet_where:
Arizona
facet_where:
Mercury
facet_where:
Pluto
facet_where:
Jupiter
facet_where:
Europa
facet_where:
Hamilton
facet_where:
Goddard Space Flight Center (GSFC)
facet_where:
Jet Propulsion Laboratory (JPL)
facet_what:
Earth
facet_what:
Galileo
facet_what:
Voyager
facet_what:
Ganymede
facet_what:
Moon
facet_what:
Mercury
facet_what:
Pluto
facet_what:
Jupiter
facet_what:
Europa
facet_when_year:
1995
facet_when_year:
1610
original url:
UID:
SPD-APOD-ap950904

Ganymede: Moonquake World