In 1692, Edmund Halley, not yet of comet fame, argued that inside the earth nested a series of spherical shells, like Russian dolls, each with their own atmosphere, magnetic poles and rate of rotation.
The belief has survived to the present day, the Hollow Earth Society now claims 400 members in more than 30 countries. Yet stories that Adolf Hitler and some of his followers escaped to hollow lands within the Earth after World War II (via an entrance in Antarctica) have been branded nonsense.
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.