The two founders jousted for years. This week, they found each other on X while their rocket companies launched missions with mixed results.

The world’s second richest man has now got a rocket in space alongside the world’s richest man, after Jeff Bezos' Blue Origin rocket entered orbit. The spacecraft, called New Glenn, passed the Kármán line—the internationally recognised boundary of space—at around 2 a.

Elon Musk has successfully launched his Starship for the seventh time, just hours after Jeff Bezos tested his rival rocket.