Purple asparagus has a huge advantage over its green relative - it doesn't end up stuck in your teeth.
It is also sweeter than the green stuff and this, combined with the brighter colour makes it attractive to children. Purple foods are popular with health-conscious consumers because the colour indicates a high level of health-enhancing anti-oxidants (which reduce the risk of cancer). The purple plant has one other advantage - eating too much green asparagus can turn urine green but its dark-coloured cousin is blameless.
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.
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