thumb|374px|link=The Bolt was an object that came off the Hubble Space Telescope

It was prominently seen in Gravity

Signifigance and roleEdit

The Bolt was so significant because it was the first real 3D effect seen in the film and one of the few to utilize the gimmick traditionally rather than from a storytelling point of view which the film usually did. It was also significant because it prominently displayed the effects of zero-gravity in space. It also foreshadowed why the film was entitled "Gravity".

While Dr. Ryan Stone was repairing the HST, Lieutenant Matt Kowalski arrived and asked her if he could help. While she was unscrewing a panel, one of the structural bolts became dislodged and floated into space, out of her reach. Luckily, Kowalski reached out and grabbed it before bringing it back to Dr. Stone. Stone apologized, claiming that she was used to a basement lab in the hospital where she worked where things fell to the floor due to gravity. 

The bolt was ultimately either lost in space or destroyed during re-entry after the debris strike wiped the Explorer and the HST out.