President Donald Trump vowed that U.S. astronauts would plant the American flag on Mars during his next administration. During his inaugural address on Monday, Trump insisted that going to Mars was part of the "manifest destiny" of the United States.

X owner Elon Musk stirred controversy Monday with a hand gesture made at a Trump inauguration event that quickly drew comparisons to a fascist salute.

Musk was seen on stage at the Capital One Arena, where 20,000 Trump supporters had gathered. After thanking the audience, he raised his right arm in what appeared to be a stiff, outstretched position, widely interpreted as a Nazi-style salute. As the crowd cheered, Musk reportedly turned toward supporters behind him and repeated the gesture.