A teenage boy is on trial for the murder of his female classmate, but while on the stand, his 12-year old sister confesses to the murder herself.
The CSI team are now faced with two people, both admitting to the same murder, and they have to decide whom to prosecute. Both the team and the viewer are kept guessing, jumping between both brother and sister in a classic whodunit.
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.
Confused Apple customers are finding coins in their MacBooks.
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