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Astronomy Picture of the Day
A Year of Extraterrestrial Fountains and Flows
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#97439
by
[z]Barbara Harris
@
01.01.2007 00:00
- nach oben -
A Year of Extraterrestrial Fountains and Flows
Explanation: The past year was extraordinary for the discovery of extraterrestrial fountains and flows -- some offering new potential in the search for liquid water and the origin of life beyond planet Earth.. Increased evidence was uncovered that
fountains
spurt not only from
Saturn's moon Enceladus
, but from the
dunes of Mars
as well. Lakes were found on
Saturn's moon Titan
, and the residual of a flowing liquid was discovered on the
walls of Martian craters
. The diverse
Solar System
fluidity may involve forms of slushy water-ice,
methane
, or
sublimating
carbon dioxide
.
Pictured above
, the light-colored path below the image center is hypothesized to have been created sometime in just the past few years by
liquid water flowing
across the surface of
Mars
.
APOD Editor to Discuss "Best of APOD 2006" Pictures in NYC on January 5
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