Technology
Technology

Billion-year-old sand dunes on Mars give scientists peek into planet’s windy past

The HiRise digital camera on the Mars Reconnaissance Orbiter snapped these dune fields in Valles Marineris. They’re estimated to be a billion years previous NASA/JPL/College of Arizona Mars has a roughly 4.5-billion-year historical past. Due to our robotic explorers, we’ve a superb sense of its present local weather and ambiance. A brand new examine of […]