A new study reveals clues about our ancient cousins’ sudden disappearance.
Now discredited, the theory painted mothers of kids with autism spectrum disorders as neglectful and cold.
A new pill shows promise. Why has it taken so long?
Little known facts about the astronomical life of author, cosmologist and physicist Stephen Hawking.
With a new find in Egypt, paleontologists move closer to solving a prehistoric puzzle.
It killed 100,000 people in the direct impact. But it led to tens of millions more deaths later.
Scientists say Ross 128 b is a “temperate” planet.
The dinosaur's puny arms were nothing to laugh at.
It's the first genetic confirmation of a female Viking warrior.