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Cassiopeia A
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Cassiopeia A supernova remnant, in a false-colour composite image synthesized from observations gathered in different spectral regions by three space-based observatories. Red areas, representing infrared data from the Spitzer Space Telescope, highlight warm dust in the remnant's outer shell. Yellow areas, representing visible-light data collected by the Hubble Space Telescope, show delicate filamentary structures made of warmer gases. Green and blue areas are X-ray data from the Chandra X-ray Observatory and reveal hot gas that was created when ejected material from the supernova collided at very high velocity with the surrounding gas and dust.

Cassiopeia A: References & Edit History

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Article History

Type Description Contributor Date
Invalidated site: European Space Agency - Space Science - Cassiopeia A - The colourful aftermath of a violent stellar death. Feb 09, 2024
Add new Web site: Chandra X-Ray Observatory - Chandra Reveals the Elementary Nature of Cassiopeia A. Nov 16, 2023
Add new Web site: European Space Agency - Space Science - Cassiopeia A - The colourful aftermath of a violent stellar death. Nov 02, 2017
Updated date of supernova explosion. Added information about central neutron star. Dec 10, 2009
Deleted reference to it being the youngest supernova remnant in the Milky Way. Sep 01, 2009
New article added. Mar 29, 2007
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