PhysicsSmart Guide to 2012: Neutrinos may be tachyons Next year, experiments will test claims of particles breaking the cosmic speed limit - but how to meld these misbehaving particles with the rest of physics? 51¶¯Âþ
PhysicsThe dust library Specks of dust are as unique as snowflakes – but no one had ever paid much attention to what individual particles are made of. Until now. Kate Douglas reports Features