Hypersonic Planes Are Coming Says NASA, It Is Inevitable (econotimes.com)

Hypersonic planes are coming says NASA, it is inevitable.

Richard Branson reveals prototype for supersonic passenger aircraft (theguardian)

Richard Branson reveals prototype for supersonic passenger aircraft.

Hypersonic Flight Is Coming: Will the US Lead the Way? (space.com)

Hypersonic Flight Is Coming: Will the US Lead the Way?

Virgin Galactic's sub-orbital tourism is a step towards a point to point hypersonic transportation anywhere in the world (Next Big Future)

Virgin Galactic's sub-orbital tourism is a step towards a point to point hypersonic transportation anywhere in the world.