View Full Version : Cosmic Rays Could Measure Time on Earth

2005-Sep-07, 10:46 AM
SUMMARY: An international team of scientists have embarked on a new project that will use cosmic rays from distant supernovae to help measure time here on Earth. The project is called CRONUS, for cosmic-ray produced nuclide systematics. When a star explodes as a supernova, it generates torrents of high-energy particles called cosmic rays. These penetrate earth and rock, and make minute changes to the elements that they're made of. Scientists will study the elements in these rocks to detect these altered elements, and use this as a way to the time for geological events, like glaciation and river erosion.

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