Light and mirrors move large quantum computers closer to reality
Scientists improve photon-collecting device that could be used to connect multiple quantum-computing arrays.
Lead-tainted teeth reveal medieval mines’ unequal toll
Burials in the United Kingdom’s Peak District, one of Europe’s largest lead-production regions in centuries past, hint at social inequality.
Orangutan mothers arrange play dates for their babies
Solitary primates spend energy and time travelling to patches of forest for get-togethers.
Growing plane and ship traffic degrade the air of western North America
Pollution from transport across the Pacific Ocean is raising ozone levels above a region whose own emissions have dropped.