Morning Overview on MSN

Inside the record X-15 that took hypersonic to new heights

The North American X-15 did more than set records; it quietly redrew the map of what a piloted aircraft could survive at the edge of space. By pushing hypersonic flight to extremes that still stand ...
The Aviationist on MSN

Going hypersonic: A look at the record-setting X-15

An important part of data collection for the United States space program, the North American X-15 had astonishing performance ...