The Large Hadron Collider (LHC) is one of the largest international scientific experiments in the world. Located at CERN near Geneva about 100m underground this particle accelerator enables physicists to study the smallest known particles, which are the building blocks of all things. The LHC is expected to bring new knowledge about the world from the world deep within atoms to the vastness of the Universe. Now in order to celebrate the anniversary of the first hadron collisions in the LHC on 23 November 2010, an LHC exhibition at the Administrative Headquarters of the Max Planck Society at the Hofgarten in Munich provides a unique opportunity to experience this research in real time. Meet the scientists and discuss their work with them!
Picture: The ATLAS detector of LHC: ATLAS (A Toroidal LHC ApparatuS) is 46 meters long and 25 meters high, which makes it the largest and most elaborate particle detectors ever designed. It measures the energy of resultant particles in a collision. © CERN
Scientists from the Max Planck Institute for Solar System Research (MPS) in Germany publish their results, which they obtained at ESA’s space observatory Herschel. The Observations of the comet Hartley 2 have revealed the first comet with water similar to that on our home planet. The results lead to the question “did comets bring water to Earth?”. Current theories say that less than ten percent of Earth’s water originate from comets. However, the new results imply, that comets may have played a much more important role.
The water of comet 103P/Hartley 2 is characterized by a similar deuterium-to-hydrogen ratio as the water on Earth. This image of the comet was taken on November 4th, 2010, by NASAs EPOXI spacecraft. © NASA/JPL-Caltech/UMD Continue reading