Grades 9-12 Learn about the cause of sunburns, in this video from NOVA’s Gross Science series. Sunlight is made up of many types of radiation: infrared, visible, and ultraviolet (UV). UV radiation can ...

NASA’s Voyager 2 became the first and still only spacecraft to fly by Uranus, offering humanity its first close-up look at this mysterious, icy giant. Orbiting over 1.8 billion miles from Earth, ...

Our Solar System is home to eight extraordinary planets, each with its own unique features, mysteries, and beauty. This cosmic journey takes you from the Sun-scorched surface of Mercury to the icy ...