Elon Musk teased Joe Rogan with possible evidence of aliens during a discussion about the Manhattan-sized comet known as 3I/ATLAS.

Musk joined Rogan on Friday's The Joe Rogan Experience for a three-hour-plus interview where they discussed President Donald Trump, Musks's businesses, and more. Rogan brought up the massive comet at one point, asking Musk if he was keeping up with the news.

"I mean one thing I can say is, like, look If I was aware of any evidence of aliens, Joe, you have my word, I will come on your show and I will reveal it on the show," Musk said.

"That's a good deal," Rogan responded.

Musk doubled down on the commitment and then made clear to the cameras that he is not and will not be suicidal.

"I'm never committing suicide to be clear. Also, on camera guys, I am never committing suicide ever," he said.

According to NASA, "3I/ATLAS is the third known object from outside our solar system to be discovered passing through our celestial neighborhood. Astronomers have categorized this object as interstellar because of the hyperbolic shape of its orbital path."

Rogan noted that physicist Avi Loeb was on his podcast discussing the comet.

"It's fascinating, it's fascinating also because it's made almost entirely of nickel, whatever it is, and the only way that exists here is industrial alloys, apparently," Rogan said.

"There are definitely comets and asteroids that are made primarily of nickel," Musk said, adding later that the nickel component does not it'd be a "spaceship" rather than a comet.

"So it's mostly nickel, very little iron, which he was saying is on Earth, only exists in alloys. But, whatever, you're dealing with, you know, another planet," Rogan said.

Musk wasn't as ready to run with the alien theory.

"It'd be a very sort of heavy spaceship to make it all out of nickel," he said.

"It's f**king huge! The size of Manhattan and all nickel? That's kind of nuts," Rogan said.

"That's a heavy spaceship," Musk added.

Watch above via The Joe Rogan Experience.