File:Middle Aged Supernova remnant G299.2-02.9.jpg

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Description	English: This composite image shows G299.2-2.9 in X-ray light from Chandra (orange) that has been overlaid on an infrared image from the Two Micron All-Sky Survey (2MASS). Evidence points to G299.2-2.9 being the remains of a Type Ia supernova, where a white dwarf has grown sufficiently massive to cause a thermonuclear explosion. Because it is older than most supernova remnants caused by these explosions, at an age of about 4,500 years, G299.2-2.9 provides astronomers with an excellent opportunity to study how such remnants evolve over time.
Date	28 September 2012, 07:57:59
Source	UnknownUnknown , Chandra X-Ray Observatory
Author	Joseph DePasquale

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current	12:11, 28 September 2012		864 × 728 (84 KB)	ExtraRed	User created page with UploadWizard

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