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Helix Nebula

The Helix Nebula (aka NGC 7293) is a large planetary nebula located in the constellation Aquarius. It’s about 700 light-years away. The Helix Nebula has sometimes been referred to as the “Eye of God.” Tolkien fans have occasionally called it the “Eye of Sauron” 140 more words

Science

ESA Herschel Discovers OH+ in Planetary Nebula

ESA announces that Herschel’s SPIRE instrument has detected OH+ in the outer reaches of of the Helix Nebula. Planetary nebula are the glowing remains of a system in which a star, similar to the Sun, dies forming a Red giant which expands, consuming the surrounding planets.   285 more words

Planetary Science