Starry Critters

Tag: NGC 7293

Iridescent Eye

by CritterKeeper on Feb.02, 2010, under Eyes in the Sky

Credit: NASA & ESA

Shin­ing with iri­des­cent hues of red and blue, the Helix Neb­ula resem­bles an eye in this image from NASA’s Hub­ble Space Tele­scope. Plan­e­tary neb­ula come in all shapes and sizes. In the case of the Helix Neb­ula, and the Ring Neb­ula, we are look­ing down a trillion-mile-long bar­rel of gas and dust; all that is left over when the cen­tral star shed its outer lay­ers near the end of its life. A plan­e­tary neb­ula is the final stage of a Sun-like star’s life. As a star like our Sun reaches the end of its life, it bal­loons to a red giant star. While this gives the star new life, pro­vid­ing extra energy to burn it’s hydro­gen and helium fuel for nuclear fusion, it can­not last for­ever. Even­tu­ally the star col­lapses on itself. The outer lay­ers of the star are thrown into space cre­at­ing a bub­ble around the star.

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A Thousand Tadpoles

by CritterKeeper on Feb.01, 2010, under Water Creatures

Credit: NASA & ESA

A thou­sand cos­mic tad­poles appear to stream toward the cen­tral star of the Helix Neb­ula in this image from NASA’s Hub­ble Space Tele­scope.

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