Some of us remember the first Earth Day, Saturday, April 22, 1970. We pulled old bedsprings and tires out of local rivers and urged a ban on phosphates that fueled weed growth in streams and ...

Keep your eye on the ball” is a motto for many athletes—and for astronomers trying to find Earth-threatening space rocks ...

An asteroid could hit Earth, but scientists are continuing to gather data to understand its trajectory and potential impact ...