President Donald Trump thanked NASA acting Administrator Janet Petro for helping the two stranded astronauts make their way home to Earth and cited her team of “geniuses” for making the return possible.

NASA removed two astronauts from its Crew-9 mission to allow for Williams and Wilmore to join the cohort, and return onboard the SpaceX Dragon − which carries four people at a time. The altered Crew-9 − only Hague and Gorbunov − launched aboard the SpaceX Dragon Freedom in late September.

U.S. astronauts Butch Wilmore and Suni Williams could be back on Earth as soon as Tuesday. The pair has been in space for nearly 300 days due to issues with the spacecraft they arrived in: Boeing's Starliner.