New 3-D Reconstructions Show Buried Flood Channels On Mars

New maps of the subsurface of Mars show for the first time buried channels below the surface of the red planet. Mars is considered to have been cold and dry over the past 2.5 billion years, but these channels suggest evidence of flooding. Understanding the source and scale of the young channels present in Elysium Planitia -- an expanse of plains along the equator, and the youngest volcanic region on the planet -- is essential to comprehend recent Martian hydrologic activity and determine if such floods could have induced climate change.