In Alaska, houses are built to keep warm air in and cold air out, not the other way around. So with a record-setting heat wave scorching the state, residents are sweltering amidst temperatures soaring past 90 degrees Fahrenheit (32 degrees Celsius).
Future stratospheric systems could change how the world goes online.
A lost city known only from inscriptions that existed some 1,200 years ago near Angkor in what is now Cambodia has been uncovered using airborne laser scanning.
Ice shelves lose more mass where the ice meets the sea than previously thought.