Final results from a long-running U.S.-based experiment show a tiny particle continues to act strangely -- but that’s still good news for the laws of physics as we know them.

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Long-running experiment finds tiny particle is still acting weird: 'Huge feat in precision' The mysterious particles called muons are considered heavier cousins to electrons ...

Final results from a long-running U.S.-based experiment show a tiny particle continues to act strangely -- but that's still good news for the laws of physics as we know them.

Final results from a long-running U.S.-based experiment announced Tuesday show a tiny particle continues to act strangely -- but that's still good news for the laws of physics as we know them ...

Final results from a long-running U.S.-based experiment show a tiny particle continues to act strangely -- but that’s still good news for the laws of physics as we know them.

NEW YORK (AP) — Final results from a long-running U.S.-based experiment announced Tuesday show a tiny particle continues to act strangely — but that's still good news for the laws of physics ...