Scientists are grappling with a cosmic mystery: why does the Universe behave differently on massive scales compared to our ...

The probe launched almost 50 years ago and is the farthest human-made object from Earth. Shutting down one of its scientific ...

Speculation about links among a handful U.S. scientists who have died or disappeared in recent years was largely confined to ...

Radio sensors at South Pole suggest arrays could record neutrinos of unprecedented energies over hundreds of cubic kilometres ...

The Curiosity rover conducted a first-of-its kind experiment on Mars, detecting organic molecules that have never been ...

By studying galaxy clusters separated by hundreds of millions of light-years, Penn physicist Patricio Gallardo and ...