Extragalactic cosmic ray Extragalactic cosmic ray Extragalactic cosmic rays are very-high-energy particles that flow into the Solar System from beyond the Milky Way galaxy. The energies these particles possess are in excess of 10 eV. Unlike solar or galactic cosmic rays, little is known about the origins of extragalactic cosmic rays. This is largely due to a lack of statistics: only about 1 extragalactic cosmic ray particle per square meter per year reaches the Earth's surface (see figure). There are many ideas about which processes may be responsible for cosmic rays with such high energies. In the 'bottom-up' approach, cosmic rays gain more
The Hills Beyond tells the story of the Joyner family, George Webber's maternal ancestors, in North Carolina from before the Civil War to the present. (Webber, a fictional character based by Wolfe on himself, was the protagonist of "The Web and the Rock" and "You Can't Go Home Again".) The "New York Times Book Review" said that "The Hills Beyond" "contains some of [Wolfe's] best, and certainly his most mature, work." The Hills Beyond The Hills Beyond is a novel by Thomas Wolfe, published posthumously in 1941. Like his earlier novels "The Web and the Rock" and "You Can't Go Home Again", it