Peter Higgs, the physicist who theorised the Higgs boson, has died at age 94 in Ediburgh, Scotland.
In the 1960s Higgs and other physicists created a theory to explain mass.
In 2012 scientists at CERN finally discovered the particle that proved his theory, using the Large Hadron Collider. They named it the Higgs boson.
He received a nobel prize in 2013.
CERN Director General Fabiola Gianotti released a statement “Besides his outstanding contributions to particle physics, Peter was a very special person, an immensely inspiring figure for physicists around the world, a man of rare modesty, a great teacher and someone who explained physics in a very simple and yet profound way. An important piece of CERN’s history and accomplishments is linked to him. I am very saddened, and I will miss him sorely.”