China has set the Chang’e 4 lander and rover down on the far side of the moon using a downward-looking camera and hazard avoidance software as it slowed its descent using retrorockets.
Browsing: David Rothery
Salty streaks have been discovered on Mars, which could be a sign that salt water seeps to the surface in the summers. Scientists have previously observed dark streaks (see image above) on the planet’s slopes which are thought to have resulted from seeps of water wetting surface dust. Evidence of salts left