Helium and Lead Observatory, Neutrino detector at SNOLAB, Creighton Mine, Sudbury, Canada
The Helium and Lead Observatory is an underground neutrino detector that uses lead blocks and special sensors to capture particles from space. It combines 79 tonnes of lead with 128 helium detectors to track tiny signals from supernova explosions throughout the galaxy.
The observatory began operations in 2012 and started monitoring neutrino signals from the universe right away. It uses repurposed materials gathered over decades from earlier experiments conducted at the same site.
The facility brings together research teams from around the world working on questions about stellar explosions and particle physics. Scientists from different countries collaborate here to understand what happens when stars die.
Access to this facility is limited since it sits deep underground in a mine with strict safety rules. Visitors should prepare for a challenging visit and follow all instructions from local guides.
The lead in this facility comes from experiments conducted decades earlier, showing how researchers creatively reuse old materials. The sensors themselves come from an earlier famous neutrino experiment that made groundbreaking discoveries.
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