Bizarre Mars: Did Lava Bubbles Wrinkle This Giant Circle?
Posted Today
The
Mars Reconnaissance Orbiter took this image of a “circular feature”
estimated to be 1.2 miles (2 kilometers) in diameter. Picture released
in December 2014. Credit: NASA/JPL-Caltech/University of Arizona
“There are an array of features like this in the region that continue to puzzle scientists. We hope that close inspection of this … image, and others around it, will provide some clues regarding its formation.”
The picture was captured by the Mars Reconnaissance Orbiter’s High Resolution Imaging Science Experiment (HiRISE), a University of Arizona payload which has released a whole slew of intriguing pictures lately. We’ve collected a sample of them below.
These
transverse aeolian ridges seen by the Mars Reconnaissance Orbiter are
caused by wind, but scientists are unsure why this image (released in
December 2014) shows two wavelengths of ripples. Credit:
NASA/JPL-Caltech/University of Arizona
This
area south of Coprates Chasma is an example of sulfate and clay
deposits on Mars, showing water once flowed readily in this region. Why
the water evaporated from the Red Planet is one question scientists are
hoping to answer with missions such as the Mars Reconnaissance Orbiter,
which took this image (released in December 2014). Credit:
NASA/JPL-Caltech/University of Arizona
Arabia
Terra, one of the dustiest regions on Mars, is filled with dunes such
as this one captured by the Mars Reconnaissance Orbiter and released in
December 2014. Credit: NASA/JPL/University of Arizona
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