Since 2008, CERN, the Conseil Européen pour la Recherche Nucléaire (European Organization for Nuclear Research), has been operating the largest particle accelerator in the world, the LHC (Large Hadron Collider), in Switzerland. Among other things, in 2012, they succeeded in proving the existence of the Higgs Boson, which had been predicted in theory. The measuring data of the LHC experiments are now provided on the newly opened Open Data Portal opendata.cern.ch under CC0 licence.
There are also several open source tools for analysis and virtualization, all of which run directly in browsers. In providing these tools, Rolf Heuer, Director General of CERN, hopes to stimulate further research by students and amateur scientists. The data that is currently available is from the first experiments at the LHC in 2010. And in future, they plan to publish all measuring data three years after implementing the experiment.