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How the IceCube observatory fishes for neutrinos

Original: This is how you fish for neutrinos. The IceCube observatory at the South Pole has 5,160 light sensors buried up to 2.5 k

The IceCube observatory at the South Pole detects neutrinos using 5,160 light sensors buried up to 2.5 km deep in a cubic kilometer of Antarctic ice. The sensors wait for ghostly neutrinos to collide with ice molecules, producing faint flashes of blue light. A 2017 detection is being highlighted as an example of how the observatory traces these elusive particles back to their cosmic sources.

Why now: Interest in particle astrophysics and IceCube's method of spotting rare neutrino collisions in Antarctic ice.

IceCubeSouth Poleneutrinos

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Evidence

• This is how you fish for neutrinos. The IceCube observatory at the South Pole has 5,160 light sensors buried up to 2.5 km deep in a cubic kilometer of Antarctic ice. They wait for ghost particles — neutrinos — to collide with ice molecules and flash faint blue light. In 2017,… · eatrics · 3

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