This color-composite image of the Helix Nebula was created from images obtained ... at the La Silla observatory in Chile. The blue-green glow in the center of the Helix comes from oxygen atoms ...
Discovered in the 18th century, the Helix Nebula, located about 700 light-years away in the constellation Aquarius, belongs ...
The Orion Nebula, 1,344 light-years away, shines in vibrant colors and serves as a stellar nursery for new stars. The Helix Nebula, 650 light-years away, resembles a cosmic eye formed by a dying ...
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