It might not be the answer you were expecting.

A new type of _Archaeopteryx_ fossil helps build the case for this creature being called ‘the first bird’.

Study casts doubt on so-called obstetrical dilemma.

Measurements of solar neutrino fluxes.

The $20 billion project is an amazing construction feat. But was it worth it?

Researchers have discovered what they say is the world’s oldest intact shipwreck at the bottom of the Black Sea. Until now, the ship had only been seen on pottery.