Scientists Have Described a Dinosaur's Butthole in Exquisite Detail

When a dog-sized Psittacosaurus was living out its days on Earth, it was probably concerned with mating, eating, and not being killed by other dinosaurs. It would never even have crossed its mind that, 120 million or so years later, scientists would

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Have We Already Been Visited by Aliens?

An eminent astrophysicist argues that signs of intelligent extraterrestrial life have appeared in our skies. What’s the evidence for his extraordinary claim?

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This fossil reveals how dinosaurs peed, pooped and had sex

We know a lot about dinosaurs -- what they looked like, what they ate and what killed them off -- but no fossils have definitively preserved two dinosaurs in the act of mating.

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A 'super-puff' planet like no other

The core mass of the giant exoplanet WASP-107b is much lower than what was thought necessary to build up the immense gas envelope surrounding giant planets like Jupiter and Saturn, astronomers at Université de Montréal have found.

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Scientists May Have Finally Found a Key Mechanism Behind Irritable Bowel Syndrome

It can begin with abdominal pressure from a bloating belly. This can escalate into cramping pain and nausea. Or, a sudden urge to flee to the toilet right now. 

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Electric car batteries with five-minute charging times produced

Exclusive: first factory production means recharging could soon be as fast as filling up petrol or diesel vehicles

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Elon Musk Swears He'll Send Humans to Mars by 2026. That Seems Impossible.

But if anyone can make it happen...

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