Monthly Archives: August 2012

Touching Mars from Earth

Remote sensing of Mars usually happens when spacecraft sensors look down from orbit around the Red Planet. But sensors on Earth can also get in on the fun, especially when they actively reach out to the planet via radio waves. … Continue reading

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Cloudburst rains needed to make Mars valley networks

In many regions, Mars has branching networks of valleys and channels that were carved by flowing water. A great many previous studies have tried to date when they were active and for how long, while others have looked in detail … Continue reading

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When Gale was young

With Mars rover Curiosity safely down on Mars, scientists are set to explore the geology and history of Gale Crater, searching for evidence of habitable environments, ancient or modern. Gale Crater has attracted much study since it became a candidate … Continue reading

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Last Martian Ice Age still waning

The neutron and gamma-ray spectrometers on NASA’s Mars Odyssey discovered that water ice lies at shallow depths from the polar regions down to latitudes of about 55° north and south. Images of very recent craters by the HiRISE camera on … Continue reading

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