Citizen scientists help map ridge networks on Mars

Over the last two decades, scientists have discovered unusual ridge networks on Mars using images from spacecraft orbiting the Red Planet. How and why the ridges formed and what clues they may provide about the history of ...

Big benefits from experimental watersheds

Scientific insights from the Agricultural Research Service's long-term study sites underpin dozens of models and research methods that guide global land management and conservation practices.

Study estimates amount of water needed to carve Martian valleys

A new study led by Northern Illinois University geography professor Wei Luo calculates the amount of water needed to carve the ancient network of valleys on Mars and concludes the Red Planet's surface was once much more watery ...

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