Media Information
 
 
 
Collection:
NASA Astronomy Picture of the Day Collection
Title:
Io in True Color
Explanation:
The strangest moon in the Solar System [ http://www.nineplan…] is bright yellow. This picture [ http://photojournal…], showing Io's true colors, was taken in 1999 July by the Galileo spacecraft [ http://www.jpl.nasa…] currently orbiting Jupiter. Io's colors derive from sulfur [ http://chemlab.pc.m…] and molten silicate rock [ http://www.windows.…bin/tour_def/glossar y/silicate_rock.html ]. The unusual surface of Io [ http://antwrp.gsfc.…] is kept very young by its system of active volcanoes [ http://antwrp.gsfc.…]. The intense tidal gravity [ http://www.clupeid.…] of Jupiter [ http://www.solarvie…] stretches Io [ http://antwrp.gsfc.…] and damps wobbles caused by Jupiter's other Galilean moons [ http://www.jpl.nasa…]. The resulting friction [ http://www.pa.uky.e…] greatly heats Io [ http://antwrp.gsfc.…]'s interior, causing molten rock [ http://cmex.arc.nas…] to explode through the surface. Io's volcanoes [ http://antwrp.gsfc.…] are so active that they are effectively turning the whole moon inside out. Some of Io [ http://www.nineplan…]'s volcanic lava is so hot it glows in the dark [ http://adsabs.harva…bib_query?bibcode=19 98Icar..135..181M ].
Credit and Copyright:
Galileo Project [ http://www.jpl.nasa…], JPL [ http://www.jpl.nasa…], NASA [ http://www.nasa.gov/]
keyword:
Io
keyword:
Jupiter
facet_when:
1999
facet_where:
Ganymede
facet_where:
Jupiter
facet_where:
Goddard Space Flight Center (GSFC)
facet_where:
Jet Propulsion Laboratory (JPL)
facet_what:
Galileo
facet_what:
Ganymede
facet_what:
Moon
facet_what:
Jupiter
facet_what:
Io
facet_when_year:
1999
original url:
http://antwrp.gsfc.…
UID:
SPD-APOD-ap010715

Io in True Color
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