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'''Cosmic rays''' are particles that bombard the Earth from [[outer space]], such as::
'''Cosmic rays''' are particles that bombard the Earth from [[outer space]].
Those associated with solar flares and other energetic solar events are called Solar Energetic Particles.
Galactic Cosmic Rays come from outside the [[solar system]].
Anomalous Cosmic Rays come from the interstellar space at the edge of the [[heliopause]].
* Galactic Cosmic Rays -- coming from outside the solar system
==Cosmic rays and the Earth==
* Anomalous Cosmic Rays -- coming from the interstellar space at the edge of the heliopause
* Solar Energetic Particles -- associated with solar flares and other energetic solar events
* "Cosmic rays are deflected away from Earth by our planet's magnetic field, and by the [[solar wind]] - streams of electrically charged particles coming from the Sun." [http://news.bbc.co.uk/2/hi/7327393.stm BBC NEWS | Science & Environment] - 3 April 2008
* "... cosmic rays go up when [[solar activity]] goes down." [https://www.nasa.gov/topics/solarsystem/features/ray_surge.html ]
* "GCR intensity is modulated by the strength of the [[solar wind]] and its [[magnetic field]]." [http://www.sepp.org/publications/NIPCC_final.pdf NASA NIPCC ]
* "... during the 20th century, the influx of cosmic rays was reduced by a doubling of the sun’s magnetic field which shields the Earth from cosmic rays." [https://www.foxnews.com/story/0,2933,220341,00.html]
==Effects on the earth's weather==
* Cosmic rays vary the earth’s temperatures by creating more or fewer of the low, wet clouds that cool the earth.
* Cosmic rays amplify small changes in the sun’s [[irradiance]] fourfold, creating 1-2 degree C cycles in earth’s temperatures. [http://www.cgfi.org/2007/01/30/two-new-books-confirm-global-warming-is-natural-moderate/]
* {{Singer cosmic rays}}
==Older terminology==
The term "cosmic rays" used to include [[X-rays]] and [[gamma rays]].
The term "cosmic rays" used to include [[X-rays]] and [[gamma rays]].
==Notes==
<references />
==External links==
==External links==
*[http://helios.gsfc.nasa.gov/cosmic.html Cosmicopia at NASA/GSFC -- Cosmic Rays] by Beth Jacob
*[http://helios.gsfc.nasa.gov/cosmic.html Cosmicopia at NASA/GSFC -- Cosmic Rays] by Beth Jacob
[[category:cosmology]]
[[Category:Astronomy]]
==See also==
*[[Cloud condensation nuclei]]
*[[Svensmark hypothesis]]