Are you ready for Grey's Anatomy in space?

ABC is hyping its new series, Defying Gravity, as just that, as it features a group of astronauts in compromising positions.

While we've been assured that no zero gravity sex takes place, viewers will need to tune in to the series premiere to make sure. It airs on Sunday night, August 2.

Check out the following promo and decide if this is a show worth checking out or not:

[video url="/videos/defying-gravity-promo/" title="Defying Gravity Promo"] [/video]

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.