Mars wasn't always the red dust ball that it is today. Billions of years ago, hundreds of huge rivers of water flowed across the planet.
from USATODAY - Tech Top Stories https://ift.tt/2OtenvI
Raging rivers wider than the Mississippi roared across Mars eons ago
![Raging rivers wider than the Mississippi roared across Mars eons ago]()
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March 28, 2019
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