Unstable atoms emit fast-moving particles that can damage cells in the human body. Some atoms are far more unstable than ...

For the first time, scientists have successfully mapped the shape of an electron while it moves through a solid. This ...

It is a basic principle of quantum theory: sometimes certain physical quantities can only assume very specific values; all the values in between are simply not permitted by physics. This fact plays a ...

Stephen L. Levy receives funding from the National Science Foundation and the National Institutes of Health. He is affiliated with CyteQuest, Inc. Richard Feynman, a famous theoretical physicist who ...