The donation center at the back makes it easy to drop off your own unused items before loading up with new-to-you treasures.

Sometimes the “whys” of history are lost, and that holds true to why Capt. John Cleves Symmes Jr. wholeheartedly believed the Earth was hollow.

NASA has discovered a new world, named Gliese 12 b. It is roughly the size of Earth, lies in the habitable zone, and orbits every 12.8 days.

This week, researchers reported on nine rivers and lakes in the Americas that defy hydrologic expectations. Geologists report ...