Latest press releases

For the first time the LHC reaches temperatures colder than outer space

Geneva, 10 April 2007. The first sector of CERN1's Large Hadron Collider (LHC) to be cooled down has reached a temperature of 1.9 K (–271°C), colder than deep outer space! Although just one-eighth of the LHC ring, this sector is the world’s largest superconducting installation. The entire 27–kilometre LHC ring needs to be cooled down to this temperature in order for the superconducting magnets that guide and focus the proton beams to remain in a superconductive state.

Giant magnet goes underground at CERN

Geneva, 28 February 2007. At 6:00 am this morning the heaviest piece of the Compact Muon Solenoid (CMS) particle detector began a momentous journey into the experiment's cavern, 100 metres underground at CERN1. Using a huge gantry crane, custom-built by the Vorspann System Losinger Group, the pre-assembled central piece, containing the magnet and weighing as much as five Jumbo jets (1920 tonnes) is being gently lowered into place.

World's largest superconducting magnet switches on

Geneva, 20 November 2006. The largest superconducting magnet ever built has successfully been powered up to its nominal operating conditions at the first attempt. Called the Barrel Toroid because of its shape, this magnet provides a powerful magnetic field for ATLAS, one of the major particle detectors being prepared to take data at CERN1's Large Hadron Collider (LHC), the new particle accelerator scheduled to turn on in November 2007.

New experiment to investigate the effect of galactic cosmic rays on clouds and climate

Geneva, 19 October 2006. A novel experiment, known as CLOUD (Cosmics Leaving OUtdoor Droplets), begins taking its first data today with a prototype detector in a particle beam at CERN1, the world's largest laboratory for particle physics. The goal of the experiment is to investigate the possible influence of galactic cosmic rays on Earth's clouds and climate. This represents the first time a high energy physics accelerator has been used for atmospheric and climate science.

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