Why Did Mars Dry Out? Mystery Deepens As New Study Points to Unusual Answers
Billions of years ago, a river flowed across this scene in a Mars valley called Mawrth Vallis. A new study examines the tracks of Martian rivers to see what they can reveal about the history of the planet’s water and atmosphere. Credit: NASA/JPL Caltech/University of ArizonaStudy led by <span class="glossaryLink" aria-describedby="tt" data-cmtooltip="<div class=glossaryItemTitle>University of Chicago</div><div class=glossaryItemBody>Founded in 1890, the University of Chicago…