Anomalous grooves on Martian moon Phobos explained by impacts

Anomalous grooves on Martian moon Phobos explained by impacts Santa Cruz CA (SPX) Aug 31, 2016 - Some of the mysterious grooves on the surface of Mars' moon Phobos are the result of debris ejected by impacts eventually falling back onto the surface to form linear chains of craters, according to a new study. One set of grooves on Phobos are thought to be stress fractures resulting from the tidal pull of Mars. The new study, published August 19 in Nature Communications, addresses anothe ... more

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