Cosmic ray
Videos
Cosmic rays or astroparticles are high-energy particles or clusters of particles that move through space at nearly the speed of light. They originate from outside the Solar System — from the Milky Way
Pacini makes a measurement in 1910.
Increase of ionization with altitude as measured by Hess in 1912 (left) and by Kolhörster (right)
Hess lands after his balloon flight in 1912.
Sources of ionizing radiation in interplanetary space.
IceCube Neutrino Observatory
Videos
The IceCube Neutrino Observatory is a neutrino observatory developed by the University of Wisconsin–Madison and constructed at the Amundsen–Scott South Pole Station in Antarctica. The project is a rec
IceCube Neutrino Observatory at the South Pole
IceCube drilling tower and hose reel in December 2009
"Taklampa," one of the Digital Optical Modules of IceCube's hole #85
Three dimensional layout of the neutrino detector