Hubble Telescope Detects 'Sunscreen' Layer on Distant Planet

Using NASA’s Hubble Telescope, scientists detected a stratosphere on the planet WASP-33b. A stratosphere occurs when molecules in the atmosphere absorb ultraviolet and visible light from the star. This absorption warms the stratosphere and acts as a kind of sunscreen layer for the planet below. More: This video is public domain and can be downloaded at: Credit: NASA God