News tagged with dune

Scientists discover 'ghost dunes' on Mars

Scientists have discovered hundreds of crescent-shaped pits on Mars where sand dunes the size of the U.S. Capitol stood billions of years ago. The curves of these ancient dune impressions record the direction of prevailing ...

dateJul 11, 2018 in Space Exploration
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New life for endangered coastal lupine

A rare, coastal flowering plant known as Tidestrom's lupine—threatened by native deer mice that can munch up to three-quarters of its unripe fruits under cover of an invasive beachgrass—has been given a new life with ...

dateFeb 07, 2018 in Ecology
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Where does the sand on Mars come from?

This image from NASA's Mars Reconnaisance Orbiter (MRO) shows one possible place where sand grains are being produced on Mars today. Discovered in images from the Context Camera, this region exhibits dark material that is ...

dateOct 11, 2017 in Space Exploration
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