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Beautiful picture of a supernova remnant, featured on APOD a couple of days ago. It’s located in the Small Magellanic Cloud, one of our Galaxy’s closest neighbours, at a distance of around 190,000 lightyears.
The image is a composite of X-ray and optical observations.
Credit: X-ray – NASA / CXC / MIT / D.Dewey et al., NASA / CXC / SAO / J.DePasquale; Optical – NASA / STScI
[youtube=http://www.youtube.com/watch?v=VunToqmW9so]
The 213th American Astronomical Society meeting started this week over in Long Beach and there’s lots of cool astronomy to report!
Take a look at this amazing video of supernova remnant Cassiopeia A, compiled from X-ray observations with space observatory Chandra, spanning 8 years. Cas A was one of Chandra’s very first targets, and by watching the images evolve over time scientists have been able to determine the expansion velocity of the hot expanding blast wave.
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