hydrogen escape

An artist’s illustration of hydrogen disappearing from Venus. Aurore Simonnet/ Laboratory for Atmospheric and Space Physics/ University of Colorado Boulder   By Eryn Cangi, University of Colorado Boulder     Today, the atmosphere of our neighbor planet Venus is as hot as a pizza oven and drier than the driest desert on Earth – but it wasn’t always that way. Billions of years ago, Venus had as much water as Earth […]