NASA astronauts Butch Wilmore and Suni Williams set out for a weeklong mission at the International Space Station last year. After nine months, they are coming home.

NASA astronauts are returning to Earth after nine months in space. Experts have said a prolonged period in space can come with changes to human physiology and psychology.

Starliner astronauts Suni Williams and Butch Wilmore, who were stranded at the International Space Station for nine months, are back on Earth after splashing down Tuesday off the coast of Florida.