In Chris Hadfield’s own words, he is, “safely home—back on Earth, happily readapting to the heavy pull of gravity.”

The Canadian astronaut left Earth to live on the International Space Station (ISS) late last December.

He touched down in Kazakhstan on Monday at 10:31 p.m. (EDT), along with two other astronauts who had been on the ISS.

He will now undergo extensive medical testing to help his body adjust to life on Earth again.

In the five months he was living on the ISS, Chris Hadfield changed the way we all relate to space.