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
To the Moon and Beyond To the Moon and Beyond To The Moon and Beyond is the title of a special motion picture produced for and shown at the 1964/1965 New York World's Fair. It depicted traveling from Earth out to an overall view of the universe and back again, zooming down to the atomic scale. It was filmed in a Cinerama process using a camera with a single fisheye lens and projected onto a dome screen. The film was made in a format called "The New CINERAMA - 360 Process" It was shown in a 96 foot high "Moon Dome" that was part of