ARTHUR BEISER The author is completing work for his Ph.D. degree at New York University where he is a director, Nuclear Emulsion Research Project; Field Director, Cosmic Ray Research Project; and part-time instructor in Physics. The earth is bombarded with them all the time. by Lawrence Berkeley National Laboratory Lower-energy cosmic ray particles that strike the earth come from within our own Milky Way Galaxy. Where do Cosmic Rays Come From? First of all, of course, cosmic rays are supposed to come from out there somewhere, not here. Clues have come through studying high-energy gamma rays from outer space. He has just returned from helping establish a cosmic-ray laboratory at Mount Wrangell. Not from gamma-ray bursts, says IceCube study. The age of cosmic-ray astronomy has arrived. In the next few years our data will permit us to identify the exact sources of these cosmic rays and how they accelerate these particles." Where Do Cosmic Rays Come From?
These are far fewer than the charged cosmic rays, but being electrically neutral they are not influenced by magnetic fields. The rest of the cosmic rays originate either from the Sun or, almost certainly in the case of the particles with the highest energies, outside the Milky Way Galaxy. cosmic rays is non-uniform. A century after the discovery of cosmic rays, delving into their mysteries remains a primary focus of high-energy astrophysics. Where do the highest-energy cosmic rays come from? Cosmic rays consist of energetic particles propagating through interstellar and even intergalactic space, and are characterized by an energy spectrum extending over at least eleven orders of magnitude, from ~1 GeV (giga-electronvolt, a commonly used unit of … Cosmic rays are protons and atomic nuclei that travel across the universe at close to the speed of light. How cosmic rays are supposed to behave. They generate showers of secondary particles that can be detected on Earth and that point back towards the point of origin of the gamma rays.

This is a fundamental discovery. Cosmic rays are high-energy protons and atomic nuclei which move through space at nearly the speed of light.They originate from the sun, from outside of the solar system, and from distant galaxies. Low-energy cosmic rays come from the Sun or from our own galaxy, but the origin of the highest-energy particles has been the subject of debate ever since they were first discovered fifty years ago. The highest-energy cosmic rays have a hundred million times more energy than the particles produced in the world's most powerful particle accelerator.

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