UNIVERSITY PARK, Pennsylvania, May 7 -- Pennsylvania State University posted the following news:

* * *

Ultrahigh-energy cosmic messengers may carry ultraheavy secrets

*

UNIVERSITY PARK, Pa. -There may be an ultraheavy explanation for the mystery surrounding the origins of the highest-energy particles ever observed.

Ultrahigh-energy cosmic rays are particles from space that strike Earth with energies far beyond those reachable by h . . .

Click here for more information about our products