Ancient Layered Rocks on Mars
Explanation:
Is this a picture of Mars or Earth?
Oddly enough, it is a picture of
Mars.
What may appear to some as a
terrestrial coastline
is in fact a formation of
ancient layered rocks and wind-blown
sand on
Mars.
The
above-pictured region spans about three kilometers in
Schiaparelli Crater.
What created the layers of
sediment is still a topic of research.
Viable hypotheses include
ancient epochs of
deposit either from running water or wind-blown sand.
Winds and
sandstorms have smoothed and
eroded the structures more recently.
The "water" that appears near the bottom is
actually dark colored sand.
The image was taken with the
Mars Global Surveyor spacecraft that has now returned over
100,000 images.
News: APOD is now also available in
Spanish.
Authors & editors:
Robert Nemiroff
(MTU) &
Jerry Bonnell
(USRA)
NASA Web Site Statements, Warnings,
and Disclaimers
NASA Official: Jay Norris.
Specific
rights apply.
A service of:
LHEA at
NASA /
GSFC
& Michigan Tech. U.
