Mass Extinction! 250 million years ago nearly all life on Earth ended. Back from the brink, history then repeated itself with the disappearance of the dinosaurs 60 million years ago. So are we next? Plus news of how a comet smash could have kick-started life on Earth, whether e-cigarettes are safe, and why science and medical reporting in the media might be untrustworthy...
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Using a laser to recreate comet and asteroid impacts on the early Earth, scientists have discovered the chemical origins of life...
E-cigarette use continues to grow. But are health claims and boosts in quit rates all smoke and mirrors, or based on sound science?
Male macaques who have strong friendships cope with stress much better than loners.
Do you believe the hype? Universities guilty of 'sexing up'
science, leading to a saturation of media exaggeration.
With the Christmas party season in full swing, some of us may
be piling on the pounds. Could popping a pill melt away that
Giant marsupials used to roam Australia, but when humans
arrived 60 000 years ago, they suddenly became extinct. Did
humans kill them?
65 million years ago, dinosaurs ruled the Earth, until suddenly
they all vanished off the planet forever. What killed the
250 million years ago, life on Earth looked very different, both
in the sea and on land. What wiped these strange creatures
There have been a number of mass-extinctions previously on
Earth. Is another one on the cards? And if so, could humans
be the next victims?
Where does the energy in the movement of tectonic plates come from? What causes them to move?