Gold

Dollar and oil pause ascent, bonds and gold lick wounds

European stocks were 0.3 percent lower, but with the euro near a 5-month low following the dollar's surge and oil shares gleeful about its rapid rise, the region was heading for an eighth straight week of gains. May 18, 2018
Mars helicopter

NASA sending a robot helicopter to Mars in 2020

The Mars Helicopter will be the size of a football and weigh about 1.8 kg. Its twin blade setup will spin ten times faster than Earth choppers and if it does manage to fly, it will take 90-second-long trips over the course of a month. May 13, 2018