Live coverage: Mission control loses contact with Indian moon lander

Mimi Aung leads a cadre of engineers developing the Mars Helicopter, an aerial drone set to fly to the Red Planet with the Mars 2020 rover.

One of Saturn’s peculiar moons has received an up-close look from NASA’s Cassini spacecraft, which sent back the best-ever pictures of Atlas, an object shaped like a flying saucer orbiting just outside the planet’s rings.

China’s heaviest rocket has rolled to its launch pad for liftoff Thursday with the country’s first Mars landing mission, an ambitious attempt to place an orbiter around the Red Planet and a robotic rover on the Martian surface in early 2021.