Vista Telescope Uses Ir To Show Helix Nebula In New Light
The Helix Nebula in the Aquarius constellation, located some 700 light-years away from Earth, was just observed by the piercing infrared gaze of the VISTA telescope at the Paranal Observatory in Chile. Some have referred to the images as the Eye of Sauron, from JRR Tolkien’s Lord of the Rings. The images reveal cold gas that is normally hidden from view among the warmer, star-lit material. Helix’s central star was once like Sol, but its outer layers of gas and dust have sloughed off....