The X-38—had it gone operational—would not have been the first reusable spacecraft. But it helped lay the groundwork for future space programs’ emphasis on reusability.

Sunday marks 38 years since the space shuttle Challenger lifted off on a chilly Florida morning and passed into history when the ship carrying seven astronauts -- one the first “civilian” in ...

NASA’s Space Launch System (SLS) is ready to fly with its four shuttle-era engines. The rocket, outfitted with the RS-25 ...

Pilots from most North Atlantic Treaty Organization countries train in the T-38 at Sheppard AFB, Texas, through the Euro-NATO Joint Jet Pilot Training Program. The National Aeronautics and Space ...

During the landing Sunday, a small white T-38 jet, acting as case plane, tarted around the shuttle as the 747 dropped down to 2,000 feet above Santa Maria.

There were high hopes for launching the space shuttle Discovery from Vandenberg Air Force Base in 1983, including a promotional tour where the spacecraft flew into the Central Coast base.

It's been 39 years since the Challenger space shuttle, carrying seven people, took off from Florida's Kennedy Space Center, exploding in mere minutes.