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Our Glaciers: Then and Now activity kit helps you see the changes taking place in glaciers around the world. See all our activity kits and classroom activities.
Super-Kamiokande is a 50,000 ton water Cerenkov detector located at a depth of 2700 meters water equivalent in the Kamioka Mozumi mine in Japan.
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Image courtesy of the University of Maryland

The Super Kamiokande

Super-Kamiokande is a neutrino detector located in the Kamioka Mozumi mine in Japan. Water fills this huge tank. In fact, it is the world's largest underground neutrino detector.

Super-Kamiokande is a big cylinder. Its dimensions are about 40 m in diameter and 40 m in height. The walls are covered with about 13,000 photomultiplier tubes (PMT's). These are very sensitive devices that help scientists track neutrinos.


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Cool It! is the new card game from the Union of Concerned Scientists that teaches kids about the choices we have when it comes to climate change—and how policy and technology decisions made today will matter. Cool It! is available in our online store.

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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part by the National Science Foundation and NASA, our Founding Partners (the American Geophysical Union and American Geosciences Institute) as well as through Institutional, Contributing, and Affiliate Partners, individual memberships and generous donors. Thank you for your support! NASA AGU AGI NSF