Meet the cosmic ghost
Building in the deep freeze
How ice catches a ghost
Messengers from the edge of time
YOUR GOAL
Master of The ice telescope catching cosmic ghosts
diego IceCube Neutrino Observatory
They're flashing in the deep dark ice (Deep dark ice!) / Catching cosmic ghosts from paradise (Yeah we are!)
diego Early scientists built massive underground pools of cleaning fluid and water to capture the rare flashes of neutrino collisions.
diego Because they have no electric charge and almost no mass, neutrinos can pass through solid lead as easily as light passes through glass.
diego Swipe the glowing particles in the ice to discover how we catch ghostly cosmic neutrinos.
Neutrino abundance: About 100 trillion neutrinos from the Sun pass through your body every single second, even during the night when they must travel straight through the Earth first!
A nearly massless, electrically neutral subatomic particle that interacts only weakly with matter. In 2013, the IceCube observatory in Antarctica first detected these elusive particles coming from deep space.
In what year did Raymond Davis Jr. win the Nobel Prize for detecting solar neutrinos?
How large did scientists calculate a neutrino detector needed to be to catch deep-space neutrinos?