How Crazy Is Elon Musk’s Hypersonic Space Rocket Airline?

If you fly in space at 17,000 mph, why not use that speed to cross our planet rapidly? It’s only about $2,900 to China on SpaceX Air.

Elon Musk speaks at the 68th International Astronautical Congress in Adelaide on Sept. 29, 2017.Photographer: Peter Parks/AFP

By Justin Bachman

For whatever reason, some of the world’s smartest and most eccentric people tend to be drawn toward airlines. Elon Musk is the latest, but with a twist — rockets.