Twenty-five years later, fleeting memories and indelible images still haunt those who lived through the attacks and their aftermath.

Physicists have debated which way a submerged sprinkler sucking in water would spin. Careful experiments provide an answer.

Girl Scout cookie season runs from January through April

The new sensor-packed Smart Play Brick will land this spring as part of a special Star Wars collection. The update adds interactive lights and sound to the Lego experience—including the minifigs.