Elon Musk is bickering with a European astronaut on the social media platform he owns, exchanging tense posts with offensive language. He’s claiming two NASA astronauts were left on the International Space Station for “political reasons.

Elon Musk went straight to the slurs after being called out yet again for saying that astronauts have been stranded on the International Space Station by the Biden administration for “political reasons”—a lie that astronauts themselves have repeatedly debunked.

Elon Musk recently called for the ISS to be deorbited "as soon as possible." Experts say the station provides vital research, technological development and education