Add Yahoo as a preferred source to see more of our stories on Google. An artist's concept of multiple types of subatomic particles. (Mark Garlick/Science Photo Library) Forget about turtles; for all ...

A new three-volume study explores how quantum physics, gravitation and cosmology may be understood within a unified ...

Everything we see around us, from the ground beneath our feet to the most remote galaxies, is made of matter. For scientists, that has long posed a problem: According to physicists’ best current ...

A blazar is an active galactic nucleus, essentially a galaxy with a supermassive black hole at its heart, devouring ...