In the vast expanse of space, traditional notions of direction like 'up' and 'down' don't apply as they do on Earth. Without ...
For the theory to hold, Earth would need to lie near the centre of a void around a billion lightyears in radius ...
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 ...
Artist’s impression of an ultra-high energy cosmic ray reaching Earth. New research suggests that some of the highest-energy cosmic rays may consist of atomic nuclei heavier than iron. The background ...
(Nanowerk News) Ultrahigh-energy cosmic rays are particles from space that strike Earth with energies far beyond those reachable by human-made particle accelerators. One of the most extreme events ...