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

Tesla CEO and Amazon founder vie for dominance of satellite launch market and could influence Nasa plans to return to Moon

SpaceX will launch Starship for a seventh test flight on Thursday, after weather concerns pushed back an experiment that will feature the spacecraft’s first payload deployment test, in what may be the latest milestone for the Elon Musk-owned aerospace company as it develops reusable rockets.