Jeremy Clarkson heads to Mississippi where NASA test their Space Shuttle solid rocket boosters. Consuming half a million gallons of fuel, they generate the thrust needed to propel astronauts into space. They're a tad noisy too! Subscribe to Top Gear: http://bit.ly/SubscribeToTopGear Great clip from the series 'Speed', presented by Jeremy Clarkson. Don't forget to visit http://www.topgear.com for all the latest news and car reviews. WATCH MORE: Chris Harris Drives: http://bit.ly/ChrisHarrisDrives Drag Races: http://bit.ly/TGDragRaces Car Walkarounds: http://bit.ly/CarWalkarounds Welcome to the most comprehensive collection of official Top Gear clips. Whether you're searching for a caravan challenge, Ken Block in the Hoonicorn, cars versus fighter jets, Stig power laps or the latest Chris Harris Drives, you can find all the iconic films here. Want to share your views with the team behind Top Gear and win prizes? Join our fan panel: http://tinyurl.com/YouTube-TopGear-FanPanel This is a channel from BBC Studios, who help fund new BBC programmes.Service information and feedback: http://bbcworldwide.com/vod-feedback--contact-details.aspx