Astronauts congratulate Gravity film

Astronauts aboard the International Space Station have sent congratulations to the makers of 'Gravity' for their success at the Oscars.

The three-man crew, Mike Hopkins, Rick Mastracchio and Koichi Wakata said they "know a little bit about gravity" themselves - and the lack of it...

As his colleagues send their congratulations, Mike then takes a bit of a weightless spin in mid-air!

Can you tell the difference between the movie and the real thing?

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