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
Beyond the Alps Beyond the Alps "Beyond the Alps" is a poem by Robert Lowell. According to Saskia Hamilton, the editor of Lowell's "Letters", Lowell wrote the original version of the poem in 1952. The poem was inspired by a trip to Europe that he took with his second wife Elizabeth Hardwick. It documents his journey, by train, through the Alps, from Rome to Paris in 1950 and captures his feelings towards his waning faith in Catholicism. Evidence of this interpretation can be heard at Lowell's 1963 poetry reading at the Guggenheim Museum, when he introduced his reading of "Beyond the Alps" by