Cosmic rays: the search is on

High-energy cosmic rays from across the galaxy will be detected on the International Space Station, thanks to a new observatory delivered on Monday.

The CALorimetric Electron Telescope (Calet) was delivered by the fifth flight of the Japan Aerospace Exploration Agency's HTV, or Kounotori ("white stork") spacecraft, and will now be attached to an external platform on Kibo, the Japanese experiment module, using a robot arm.