The fake: In true Top Gear style, presenter James May is racing against Richard Hammond in a caravan attached to a zepplin airship. He accidentally flies over Norwich airport, provoking police to intervene. After struggling with the controls, May calls for help shouting "Mayday, Mayday!" before crashing the ship in a field.
What really happened: The BBC show is famed for its ourageous stunts and this was one of the many slapstick moments which were faked. Although May appeared to be flying alone, a professional was on board to control the more difficult moves and the crash was revealed to be a controlled accident.
Steve O'Brian of Sterling Helicopters, who supplied the police chopper, said: "The whole event was set up. It was completely scripted, there was no real emergency - we were hired to play along."
Watch highlights from the stunt here:
22,000 people agreed to clean toilets for WiFi because they did not read the terms.
Tools designed to ensure computer code in smart cars does not crash has been inspired by hungry penguins.
The rounded sleeping capsules send guests drifting into ocean before arriving on desert island by morning.
Sitting on the saddle activates the part of the brain responsible for learning, a study has claimed.
Scientists are appealing for more people to donate their brains for research after they die.
Life on Earth may have arrived from Mars on an asteroid, scientists have claimed.
Lunar mission scheduled at the end of 2017 could find out if beer can be brewed on the moon.
A bottle used to teach children how far litter can travel ended up on Scottish beach after 8,700-mile journey.