The Lockheed Martin F-35 aircraft, fielded for training and operations around the country, continue to fly under a restricted envelope following a June 23 engine fire in an F-35A. The Pentagon has yet to announce a definitive path to dealing with the design problem on the Pratt & Whitney F135 engine that prevented the F-35 from making its international debut at the Royal International Air Tattoo and Farnborough air show in July.

Bell Helicopter bulks up its tiltrotor team as it pursues the U.S. Army’s Joint Multi Role technology demonstrator

The search for MH370 has resumed with refined Inmarsat data in play, although skeptics maintain that searchers still do not have all the information they need

NASA’s $8.8 billion James Webb Space Telescope program was rebaselined in 2011 and has since adhered to its revised cost and schedule estimates for a planned launch atop an Ariane 5 ECA rocket in 2018, but technology challenges could threaten the agency’s ability to keep it on track.

Opinion: USAF has the rare opportunity to improve U.S. national security, impose costs on an aggressive foreign power, promote American technological innovation and create jobs at home.

Joe Anselmo and Graham Warwick ask Guy Norris about his story on Lockheed Martin's Skunk Works and their Compact Fusion Reactor.

The device is conceptually safer, cleaner and more powerful than much larger, current nuclear systems that rely on fission, the process of splitting atoms to release energy. Crucially, by being “compact,” Lockheed believes its scalable concept will also be small and practical enough for applications ranging from interplanetary spacecraft and commercial ships to city power stations and, potentially, large aircraft.