Rules taking effect in California ban cups, clamshells and other food ware made from expanded polystyrene foam unless companies meet a high recycling target.

After nearly 40 years of failed attempts to develop a vaccine against HIV/AIDS, scientists found a drug that blocks infection ...

The international date line is the "line" that runs through the middle of the Pacific Ocean about 180 degrees longitude from the North Pole to the South Pole. It's located halfway around the world ...

Standing tall with a vertical drop of an astonishing 11,500 feet (3,500 meters), it’s over three times the height of the ...