Sunita Williams and fellow astronaut Barry Wilmore stepped out of the station on Thursday to perform maintenance work and wipe its exterior to check for any surviving Earth microbes.

Astronauts Suni Williams and Butch Wilmore, who have been on an unexpectedly monthslong assignment after serving on Boeing’s ...

While the initial testing will use Tesla's own fleet of cars, regular customers may be able to add their cars to the ride-hailing fleet next year, Musk says.