Nonconformists could take a page from the proton’s playbook: The subatomic particle is once again resisting scientists’ attempts to size it up. Everyone agrees the proton is tiny: Its radius is less ...

New measurements have resolved the proton radius puzzle, confirming a smaller subatomic value of 0.8406 femtometers.

Protons might be stretchier than they should be. The subatomic particles are built of smaller particles called quarks, which are bound together by a powerful interaction known as the strong force. New ...

Proton therapy has been touted as the next big thing in cancer care. The massive machines, housed in facilities the size of football fields, have been sprouting up across the country for a decade.

Being able to see inside an object is essential to understanding how it works. X-rays revolutionized medicine by giving doctors a noninvasive way to look beneath the skin — to spot broken bones, ...

Stephen has degrees in science (Physics major) and arts (English Literature and the History and Philosophy of Science), as well as a Graduate Diploma in Science Communication. Stephen has degrees in ...