Two astronauts are doing well despite rumors of health issues as they wait to return to Earth, the astronauts and NASA say. The astronauts' return was delayed by problems on Boeing's Starliner spacecraft.

Williams launched to the International Space Station on June 5th with fellow NASA Astronaut Butch Wilmore on the first crewed flight of the Boeing Starliner.

The agency’s top medical official was responding to rumors that Suni Williams had lost an unusual amount of weight during an extended stay in orbit.

Suni Williams and Butch Wilmore, the two NASA astronauts who have been stuck at the International Space Station for more than 150 days and counting, are speaking out amid health concerns, reassuring the public they are doing well and explaining how they keep themselves healthy.