Energetic Particles
Energetic particles are pieces of matter (things with rest mass, unlike photons of light) that are moving very fast. The low end of what is meant by "very fast" is a little cloudy, but the solar wind can move as slowly as a few hundred km per second (or about one thousandth the speed of light). Energetic particles have been measured moving at speeds as high as .99999999 times the speed of light. Energetic particles include protons, electrons, neutrons, neutrinos, the nuclei of atoms, and other sub-atomic particles.
An electron volt (eV), is a unit of energy used to describe the total energy carried by a particle.
Energetic Particles in the News:September 22, 2008: Why the Large Hadron Collider is already on the fritz -- TimeSeptember 19, 2008: The LHC sees its first circulating beam -- CERN September 12, 2008: Large Hadron Collider to have "practical" spin-offs? -- National Geographic September 10, 2008: What the collider might discover -- Time September 10, 2008: Large Hadron Collider rap video is a hit -- National Geographic September 10, 2008: First beam for Large Hadron Collider -- Brookhaven National Laboratory September 4, 2008: What happens to particle accelerators after they are shut down? -- Scientific American July 2, 2008: As LHC draws nigh, Nobelists outline dreams -- and nightmares -- Scientific American May 12, 2008: Video: Lab probes universe's secrets -- National Geographic May 5, 2008: GRBs -- HEAPOW April 28, 2008: 'Broken heart' image the last for NASA's long-lived Polar mission -- NASA GSFC April 28, 2008: Found link? -- HEAPOW April 24, 2008: Secrets of massive black hole unveiled: Workings of giant galactic particle accelerators discovered -- Science Daily April 23, 2008: Radio telescope reveals secrets of massive black hole -- NRAO April 16, 2008: Reflections offer new way to bend particles -- CERN April 16, 2008: Finding the Higgs boson -- AIP March 20, 2008: NASA satellite detects naked-eye explosion halfway across universe -- NASA / Swift mission March 9, 2008: New discovery at Jupiter could help protect Earth-orbit satellites -- Eurekalert March 7, 2008: WMAP reveals neutrinos, end of dark ages, first second of universe -- NASA March 3, 2008: Particle collider's last big piece set -- National Geographic February 25, 2008: Dawn of the Large Hadron Collider -- APOD February 25, 2008: Killer electrons surf celestial tsunamis -- NASA GSFC February 25, 2008: Transformer -- HEAPOW February 20, 2008: Integral: Stellar winds colliding at our cosmic doorstep -- ESA February 19, 2008: High energy electron holes reveal unseen rings -- ESA February 13, 2008: Theorists weigh up new route to neutrino mass -- Physics World February 7, 2008: Particle accelerator: Signals sent racing ahead at light speed to keep particles colliding -- Science Daily January 27, 2008: Giant particle accelerator discovered in the sky -- Science Daily January 17, 2008: The future of physics -- Scientific American January 17, 2008: Large Hadron Collider: The discovery machine -- Scientific American January 17, 2008: The coming revolutions in particle physics -- Scientific American January 16, 2008: Upgraded neutrino detector could root out dark matter -- New Scientist January 10, 2008: Centaurus A exposed -- Astronomy.com January 9, 2008: Japanese particle physics in good health -- Physics World January 1, 2008: Important days in history of universe -- CNN December 22, 2007: The best of 2007 -- Physics World December 18, 2007: 'Bully' black hole blasts galaxy with radiation -- CNN December 13, 2007: Ten top physics stories for 2007 -- AIP November 30, 2007: Neutrinos could probe Earth's structure -- Physics World November 23, 2007: Giant 'IceCube' could take snaps of Earth's core -- New Scientist November 7, 2007: Physicists see similarities in stream of sand grains, exotic plasma at birth of Universe -- Science Daily October 25, 2007: Look mum, it's a neutrino -- Australian Broadcasting Company August 29, 2007: Low-energy neutrinos detected inside Sun -- Science Daily August 21, 2007: Scientists confirm long-held theory about source of sunshine -- Science Daily August 20, 2007: Catching some rays -- NSF June 28, 2007: Neutron stars join the black hole jet set -- Science Daily May 23, 2007: UD scientists build an 'ice top' at the bottom of the world -- EurekAlert! February 28, 2007: NASA MESSENGER mission news: priming instruments to map Mercury's crust -- SpaceRef.com February 20, 2007: Classification of ACE/EPAM near-relativistic electron beam events -- ACE News July 1, 2006: ALICE experiment sees first cosmic-ray events -- CERN Courier March 1, 2006: Germany seeks to fulfil astroparticle aspirations -- CERN Courier February 20, 2006: New study questions the effects of cosmic proton radiation on human cells -- SpaceRef.com November 7, 2005: Effects of interplanetary shocks on energetic particles -- ACE News June 24, 2005: A force field for astronauts? -- Science@NASA February 23, 2005: Cosmic insight into pyramids, volcanoes and nuclear contraband -- LiveScience February 23, 2005: Cosmic rays reveal past and present secrets -- MSNBC April 15, 2004: Killer electrons -- NASA HQ March 18, 2004: Space dust to unlock pyramid secrets -- Australian Broadcasting Corporation February 19, 2004: Antarctic test flight preps way for hunt for 'killer' particles -- SpaceRef.com January 15, 2004: Doctoral student journeys to "the ice" to study neutrinos -- University at Buffalo Reporter December 10, 2003: UCSD physicists see solar electrons, auroras associated with recent geomagnetic storms -- EurekAlert! December 8, 2003: Earth's radiation belts spectacular following Halloween solar storms -- EurekAlert! October 29, 2003: A powerful solar flare -- NASA GSFC APOD October 14, 2003: New NASA facility will help protect space crews from radiation -- SpaceRef.com October 14, 2003: NASA and DOE dedicate new NASA facility at Brookhaven Lab -- Brookhaven National Laboratory September 11, 2003: Sudbury Neutrino Observatory reports new measurements - thanks to table salt! -- ScienceDaily September 9, 2003: Solar wind makes waves; killer electrons go surfing? -- NASA GSFC September 5, 2003: Solar flare serves up antimatter surprises -- Scientific American September 2, 2003: Antimatter factory on Sun yields clues to solar explosions -- NASA GSFC September 2, 2003: RHESSI satellite offers clues about how solar explosions act as particle accelerators -- UC Berkeley News August 14, 2003: MINOS detector ready to take first data -- EurekAlert August 3, 2003: Ice fishing for cosmic neutrinos -- NASA GSFC APOD May 1, 2003: NESTOR sees muons at the bottom of the sea -- CERN Courier March 24, 2003: Gamma-ray burst, supernova connection confirmed -- Spaceflight Now February 28, 2003: Black Widow pulsar spraying antimatter into space -- Australian Broadcasting Corporation January 17, 2003: New look for Cerenkov radiation -- PhysicsWeb November 7, 2002: UC Berkeley analysis of satellite data turns up first direct evidence that magnetic processes in space can accelerate electrons to near light speed -- UC Berkeley September 19, 2002: Space movie reveals shocking secrets of the Crab pulsar -- Chandra April 18, 2002: How ultra high-energy neutrinos might be made, seen -- UniSci February 21, 2002: Antimatter atoms captured for the first time -- New Scientist December 25, 2001: Two theorists never in doubt -- Physics Today November 19, 2001: Particle physics telescope explodes -- BBC News July 10, 2001: New peek into differences between matter, antimatter -- UniSci July 1, 2001: Neutrinos have mass for sure -- Jupiter Scientific June 29, 2001: Energetic particle fluences from solar wind to cosmic ray energies -- ACE News
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