Q&A with Elon Musk, SpaceX’s founder and CEO

SpaceX’s Dragon supply ship reached the International Space Station on Wednesday, with astronaut Jeff Williams grappling the unpiloted spacecraft with the research lab’s robotic arm at 6:56 a.m. EDT (1056 GMT) after an automated rendezvous.

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.

A solid-fueled Chinese Kuaizhou launcher positioned to compete for worldwide business took off Monday on its first commercial mission with three small satellites to collect high-definition video and test communications technologies.