Osuga Valles is a complex set of river channels on Mars ESA/DLR/FU Berlin
Mars today is a freezing desert, but it wasn’t always so. A new analysis shows that rivers flowing on the planet’s surface 1 billion years ago were wider than those found on Earth today.
Evidence collected by rovers and orbiting spacecraft has shown that Mars’s surface was once covered with lakes and rivers, but we don’t know exactly when they dried up. It is thought that about 4 billion years ago, the planet started to lose…
