New study examines rare sedimentary rocks atop some of the planet's oldest large land masses.
The fastest-spinning white dwarf on record completes a full rotation in 25 seconds.
Devices that nudge the rich and middle class to exercise don't offer same boost to those with lower incomes.
A particle accelerator-powered imaging tool has opened new windows into human anatomy.
Robots and self-driving cars could deliver packages efficiently. But will they create new hazards?
If the world can limit future greenhouse gas emissions, scientists are hopeful that adaptations can help a battered industry survive.
Coverage of the Coronavirus Pandemic