Astronauts can't waste their jetpacks' fuel horsing around, lest they run into trouble, Gravity-style. Instead, they practice on board the ISS with a chunky laptop strapped to their head -- for real. That laptop runs a virtual reality simulator through a VR headset that's far more... substantial than the ones we're used to here on the ground. It's absolutely necessary for them to know how to control those jetpacks, since they're used to propel astronauts to safety if their tether gets severed during a space walk. These jet packs, by the way, are called Simplified Aid for EVA Rescue or "SAFER." They're completely different from the armchair-like propulsion systems called Manned Maneuvering Unit (the one Mr.Clooney was using in the aforementioned movie) that astronauts use to go to locations far from the ISS. SAFERs are the backpacks they wear during tethered space walks near the station, which they can fire up if they're in danger of getting lost in space.

[Image credit: Terry W. Virts/Twitter]

The Big Picture: Astronauts pilot a jetpack in virtual reality

BigPicture

JetPack

Costway US $1118.00 72 Inch Small Fabric Loveseat Sofa Couch with Wood Legs Costway US $241.00 2-Person Double Rocking Loveseat with Mesh Fabric and Center Tempered Glass Table-Gray Costway US $323.00 Modern Loveseat Sofa with 2 Bolsters and Side Storage Pocket-Light Gray Costway US $278.00 2 Pieces Patio Loveseat Bench Table Furniture Set with Cushioned Chair-Blue Costway US $484.00 4 Pieces Patio Acacia Wood Thick Cushion Loveseat Sofa Set-White Costway US $185.00 Outdoor Porch Steel Hanging 2-Seat Swing Loveseat with Canopy-Turquoise Costway US $140.00 Loveseat Cushioned Patio Steel Frame Swing Glider -Beige Costway US $152.00 Swing Glider Chair 48 Inch Loveseat Rocker Lounge Backyard-Brown Costway US $144.00 Loveseat Cushioned Patio Steel Frame Swing Glider -Black Costway US $218.00 Garden Bench Chair Outdoor Wooden Loveseat with Iron Armrest