These 2 NASA astronauts will fly on SpaceX's Crew-4 mission to the International Space Station in 2022 - Space.com

Artemis astronaut and veteran test pilot set for space station flight in 2022.

Two NASA astronauts will fly to the International Space Station on the fourth-ever commercial crew mission on SpaceX in 2022 — and you can follow their adventures on social media in the next year.

Kjell Lindgren — a potential moonbound astronaut for the Artemis program who spoke with "The Martian" stars from orbit in 2015 — will return to space for his second mission.

Joining him will be Bob Hines, a research test pilot (much like the famed moonwalker Neil Armstrong) who just graduated to full astronaut status last year after his selection in 2017.

More crewmembers will join Hines and Lindgren on Crew Dragon — which holds four people at most — after assignment from international agencies, NASA said in a statement.

(The most likely agencies to join them would be from major space station partners Russia, Europe or Japan, as minority partner Canada's next astronaut assignment is expected in 2023.).

Lindgren's mission also coincided with the one-year mission by NASA astronaut Scott Kelly and Russian cosmonaut Mikhail Kornienko, which continues to generate valuable research about how long stays in space affect the human body.

Lindgren, who was a flight surgeon for space shuttle and space station missions before he was selected for astronaut training in 2009, has a bachelor's degree in biology from the U.S.

Before NASA swooped him into astronaut school in 2017, he supported military deployments in several countries, served as a test pilot in the Federal Aviation Administration, and flew as a NASA research pilot.