For years, NASA's Mars Reconnaissance Orbiter — a spacecraft circling the Red Planet — has seen white material lining dry gullies thought to be dusty water ice. This environment in the Martian tropics ...
The image of Elon Musk that may be dominating people’s mindspace at the moment is of his prancing about joyously — and yes, a tad weirdly — behind Donald Trump on the podium during the latter’s Oct. 5 ...