NASA married a scramjet to an experimental plane, called the X-43A Hyper-X. The X-43 began its existence as a concept in a NASA wind tunnel in 1996. It was considered a risky investment because no ...

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 ...