Saturday's launch attempt of the long-awaited inaugural astronaut mission of Boeing's Starliner spacecraft was called off minutes before liftoff. Follow for our live updates.
After troubleshooting the issue in May, the space agency said a helium leak recently found within the spacecraft service module did not pose a threat to a mission.
NASA astronauts Butch Wilmore, Suni Williams go for Boeing Starliner launch Saturday cnn.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from cnn.com Daily Mail and Mail on Sunday newspapers.
The U.S. Air Force is advancing artificial intelligence (AI) capabilities within its ranks by incorporating AI pilots into F-16 combat aircraft as part of DARPA's Air Combat Evolution (ACE) program.