Nicki has an alter ego, Roman, who she claims was born inside her, out of rage, and becomes him when she is angry.
Of Roman, she recently said:
"The new album is going to have a lot of Roman on it ... And if you're not familiar with Roman, then you will be familiar with him very soon.
"Hes the boy that lives inside of me. He's a lunatic and he's gay and he'll be on there a lot."
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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