Hypersonic flight has long been a military obsession, but the idea of a sitting United States president crossing oceans at ...

In a step that could bolster the U.S.'s hypersonic weapons push, the Pentagon on Monday confirmed the second successful test of a reusable hypersonic vehicle in March, just three months after the ...

Hypersonic aircraft promise to compress distance and time in ways that make even the fastest supersonic jets look dated, yet ...