Ancient Golden Mask From 1,000 Years Ago Hides a Gruesome, Bloody Secret

Two people suppressed HIV for years while pausing medication

An international team of scientists, using the ground-based Gemini Observatory telescope in Chile, is the first to directly measure the amount of both water and carbon monoxide in the atmosphere of a planet in another solar system roughly 340 light-years away.

More than ceremonial, ancient Chaco Canyon was home, new study says