Astronaut Scott Kelly, who spent 340 days in space, gives the HoloLens his stamp of approval

Even Scott Kelly -- a NASA astronaut who just returned to Earth after 340 days on the International Space Station -- is on board with augmented reality.

Kelly tested out the Microsoft HoloLens, an augmented reality device, on the Space Station, and he seems pretty into it.

"I think that virtual reality has a lot of potential," Kelly said during a press conference Friday.

"It [the HoloLens] worked great. I was really surprised. We messed around with it for, like, two hours, and immediately, I sensed, this is a capability we could use right now."

The technology could be useful for astronauts trying to perform a task as instructed by mission controllers. 

Kelly said that the HoloLens can display a checklist or list of steps. It's even possible for people on the ground to write things in an astronaut's field of view, Kelly said, literally pointing an astronaut in the right direction.

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"The technology, in general, has got great potential for applications not only in space, but of course, on Earth as well," Kelly said.

Astronauts on the Space Station do a fair number of tasks by following specific instructions, so being able to have those instructions laid out in an easy-to-use augmented reality interface could be invaluable.

"You could put a procedure in your field of view, maybe off to the side, and you could glance right up at it," Kelly said about possible uses for the $3,000 device in space.

Kelly also said that the tool didn't make anyone feel disoriented in the weightlessness of the Space Station.

The crewmembers even played a game involving alien spaceships coming toward them inside the orbiting outpost, and that experience didn't throw anybody too out of whack.

"That didn't seem to make anyone sick," Kelly said of the game. "It was kind of fun."

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