The neutrino is one of the tiniest and most elusive of the elementary particles that make up the universe.
Almost weightless and electrically neutral, they travel through most matter with ease.
If we can catch them, they can reveal information about the most distant reaches and extreme environments in the universe.
This video explains how the IceCube telescope in Antarctica is working to track these microscopic fugitives.
Originally published by Cosmos as Why neutrinos matter
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