After unveiling the commercial spacecraft Starship during a recent SpaceX event, the company’s founder Elon Musk shared his thoughts regarding the existence of alien life. If an actual encounter with extraterrestrials does happen, Musk is hoping the aliens will be nice.

Earlier this week, SpaceX unveiled its fully reusable spacecraft dubbed as Starship during an event held at the company’s launch facility in Boca Chica, Texas. Musk and SpaceX are planning to use Starship for commercial spaceflights, which include trips to Mars.

Although the focus of the event was Starship, Musk’s attention slightly drifted towards the search for extraterrestrial life due to questions made by members of the audience. The tech mogul noted that since complex alien life has not yet been found, he believes that humans are the only conscious beings in the galaxy.

Musk also admitted that he has not yet seen an alien before.

“As far as we know, we’re the only consciousness, or the only life that’s out there,” he said during the event according to Space.com. “There might be other life, but we’ve seen no signs of it.”

“People often ask me, ‘What do you know about the aliens?’” Musk added. “And I’m like, ‘Man, I tell you, pretty sure I’d know if there were aliens. I’ve not seen any signs of aliens.”

For now, Musk believes that Earth is the only planet in the galaxy that contains intelligent life. Since this is the case, he thinks humans should take advantage of every opportunity to spread their consciousness and existence to other parts of the galaxy, which is the goal of the various Mars colonization and expedition projects.

“The reality is, as far as we know, this is the only place, at least in this part of the galaxy or in the Milky Way, where there is consciousness,” Musk explained. “It appears that consciousness is a very rare and precious thing, and we should take whatever steps we can to preserve the light of consciousness.”

If, however, aliens visit Earth and establish the first contact, Musk hopes that everything will go well for humans.

“If they are here, I hope they’re nice,” he said. “You know, they haven’t killed us yet – so they must be not that bad.”