"Hey @ElonMusk, when you finally get the nerve to climb into a rocket ship, come talk to the three of us," Captain Mark Kelly added.

The billionaire got into it with a Danish astronaut after they questioned his tale about astronauts stuck in space

Elon Musk used a grotesque slur to attack famed astronaut Andreas Mogensen in an angry social media post. In a Fox News interview with President Donald Trump last week, Musk suggested that Sunita 'Suni' Williams and Barry 'Butch' Wilmore had been left 'stranded' in space because of 'political reasons' by the Biden administration.