Cassiopeia A - 3D Fly-through

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The Beautiful Universe: Chandra in HD (3): Cassiopeia A - 3-D Fly-through.

Since its launch on July 23, 1999, the Chandra X-ray Observatory has been NASA's flagship mission for X-ray astronomy, taking its place in the fleet of "Great Observatories."

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The many faces of Cassiopeia A

Cassiopeia A (Cas A), the youngest known supernova remnant in the Milky Way galaxy, has been observed with unprecedented precision over the five year lifetime of the Chandra Observatory. From one of the first observations in 1999 to a million second long observation in 2004, Chandra images have been instrumental in unlocking the mysteries of this recent stellar explosion.

• http://chandra.harvard.edu/fifth/casa/

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NASA's Chandra X-ray Observatory is a telescope specially designed to detect X-ray emission from very hot regions of the Universe such as exploded stars, clusters of galaxies, and matter around black holes. Because X-rays are absorbed by Earth's atmosphere, Chandra must orbit above it, up to an altitude of 139,000 km (86,500 mi) in space.

The Smithsonian's Astrophysical Observatory in Cambridge, MA, hosts the Chandra X-ray Center which operates the satellite, processes the data, and distributes it to scientists around the world for analysis. The Center maintains an extensive public web site about the science results and an education program.

Chandra carries four very sensitive mirrors nested inside each other. The energetic X-rays strike the insides of the hollow shells and are focussed onto electronic detectors at the end of the 9.2- m (30-ft.) optical bench. Depending on which detector is used, very detailed images or spectra of the cosmic source can be made and analyzed.

Chandra has imaged the spectacular, glowing remains of exploded stars, and taken spectra showing the dispersal of elements. Chandra has observed the region around the supermassive black hole in the center of our Milky Way, and found black holes across the Universe.

Chandra has traced the separation of dark matter from normal matter in the collision of galaxies in a cluster and is contributing to both dark matter and dark energy studies. As its mission continues, Chandra will continue to discover startling new science about our high-energy Universe.

• http://chandra.harvard.edu/
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Category:

Science & Technology

Tags:

• cassiopeia
• cas
• a.
• supernova
• milky
• way
• chandra
• beautiful
• universe
• nasa
• missions
• x-ray
• observatories
• space
• telescopes
• astronomy

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