Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
Explanation:
Callisto's surface has many stories to tell.
The most distant of Jupiter's Galilean Moons, Callisto shows the highest density of
impact craters in the
Solar System, but harbors no volcanoes
or even any large mountains.
Callisto's surface is laced with
cracks and
craters from billions of years of collisions with
interplanetary debris. This image shows
Authors & editors:
Robert Nemiroff
(MTU) &
Jerry
Bonnell (USRA)
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NASA Technical Rep.:
Jay Norris.
Specific rights apply.
A service of:
LHEA
at
NASA/
GSFC
&:
Michigan Tech. U.