The Future of Physics39 The Discovery Machine By Graham P. CollinsThe Large Hadron Collider, the biggest and most complicated particle physics experiment ever seen, is nearing completion and is scheduled to start colliding protons this year.46 The Coming Revolutions in Particle Physics By Chris QuiggNo matter what the Large Hadron Collider finds, it is going to take physics into new territory.54 Building the Next-Generation Collider By Barry Barish, Nicholas Walker and Hitoshi YamamotoTo further investigate the intricacies of high-energy particle physics, researchers must construct a more powerful electron-positron collider.CLIMATE CHANGE60 The Unquiet Ice By Robin E. BellAbundant liquid water discovered underneath the great polar ice sheets could catastrophically intensify the effects of global warming on the rise of sea level around the world.INNOVATIONS68 RFID Powder By Tim HornyakRadio-frequency identification (RFID) tags label all kinds of inventoried goods and speed commuters through toll plazas. Now tiny RFID components are being developed with a rather different aim: thwarting counterfeiters.