Earlier this week, NASA announced that the Hubble Space Telescope had found the best evidence yet for an underground saltwater ocean on Jupiter’s largest moon, Ganymede. Sure, it’s buried under 95 miles of ice, but whenever we discover water on a faraway moon or planet the first thing that pops into our minds is possible life.

This discovery sent Tesla and SpaceX founder Elon Musk into a Twitter frenzy over aliens, the Fermi Paradox, and rumors about his own origins.

Apparently, Musk isn’t a believer in the whole “Ancient Aliens” theory.

Seems like an opportune moment to bring up the Fermi Paradox, aka "where are the aliens?" Really odd that we see no sign of them.

— Elon Musk (@elonmusk) March 12, 2015

Btw, please don't mention the pyramids. Stacking stone blocks is not evidence of an advanced civilization.

— Elon Musk (@elonmusk) March 12, 2015

The ancient Egyptians were amazing, but if aliens built the pyramids, they would've left behind a computer or something

— Elon Musk (@elonmusk) March 13, 2015

But I think we have a solution:

Maybe this is all the work of the Stonecutters! Certainly connects a lot of themes … http://t.co/E5jJ9Snaca

— Elon Musk (@elonmusk) March 13, 2015

Musk might be The Terminator. But apparently, he’s of this Earth:

The rumor that I'm building a spaceship to get back to my home planet Mars is totally untrue

— Elon Musk (@elonmusk) March 12, 2015

Please follow Elon Musk on Twitter. If you’re not following Elon Musk on Twitter then I’m really not sure what you’re doing with your life.