New clues from the day the dinosaurs died. A mysterious ancient human tooth. Primordial galaxies. See how the past year ...

Electric vehicles have earned a reputation for cutting fuel costs and tailpipe emissions, yet anxiety about expensive battery ...

As glaciers and ice sheets retreat, they are exposing objects, organisms, and landscapes that have been locked away for ...

Gordon-Darby Holdings Inc., the vendor for the state’s annual emissions testing program, filed a notice to sue New Hampshire ...