The X-43 began its existence as a concept in a NASA wind tunnel in 1996. It was considered a risky investment because no scramjet-powered plane had ever been built—let alone flown in the atmosphere.

Summary and Key Points You Need to Know: The NASA X-43 was a groundbreaking hypersonic aircraft developed under the Hyper-X program in the late 1990s.It set records, reaching speeds of Mach 9.64 ...

When it comes to the question of the fastest fighter jet, you can choose to compare only those fighter jets that are still in service, or you can consider every last jet fighter that's ever graced the ...

This is NASA's X-43A demonstrating supersonic-combustion ramjet (scramjet) propulsion November 16 demonstrated a speed of Mach 9.6 (7,366mph) ...

NASA announced that an aircraft known as the Sustainable Flight Demonstrator is now officially called the X-66A. It could first fly in 2028.

When it comes to the question of the fastest fighter jet, you can choose to compare only those fighter jets that are still in service, or you can consider every last jet fighter that's ever graced the ...

The X-43 began its existence as a concept in a NASA wind tunnel in 1996. It was considered a risky investment because no scramjet-powered plane had ever been built—let alone flown in the atmosphere.