There’s still a lot we don’t know about the proton

Questions loom about the iconic particle's size, spin and decay

proton illustration

PROTON PUZZLES  Hidden secrets of the humble particle could have physicists rethinking some standard notions about matter and the universe.

ARSCIMED/SCIENCE SOURCE

This article is only available to Science News subscribers.

Subscribers, enter your e-mail address to access our archives.

Not a subscriber?

Science News is a nonprofit.

Support us by subscribing now.

More Stories from Science News on Physics

From the Nature Index

Paid Content