Boeing Starliner astronauts have been in limbo for months. NASA may soon make a decision about their return from space

Sign up for CNN's Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more.

The fate of two NASA astronauts, who have been in limbo aboard the International Space Station for about 80 days due to problems with their Boeing Starliner spacecraft, may soon become clear.

The space agency said it will conduct a formal investigation on Saturday to determine whether the Boeing Starliner vehicle is safe enough to return home with its crew, or whether SpaceX's workhorse Crew Dragon will need to step in to save the day.

NASA said it will share ...