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воскресенье, 22 марта 2015 г.

                                                    Exposed Cranium Nebula
                                                                                                                                   The brain-like orb called PMR 1 has been nicknamed the "Exposed Cranium" nebula by Spitzer scientists. This planetary nebula, located roughly 5,000 light-years away in the Vela constellation, is host to a hot, massive dying star that is rapidly disintegrating, losing its mass. The nebula's insides, which appear mushy and red in this view, are made up primarily of ionized gas, while the outer green shell is cooler, consisting of glowing hydrogen molecules.

In this image, infrared light at wavelengths of 3.6 microns is rendered in blue, 4.5 microns in green, and 8.0 microns in red.                                                                                                                                                                                                                                                          Credit
NASA/JPL-Caltech/J. Hora (Harvard-Smithsonian CfA)

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