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Leicester Database and Archive Service
 
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Downtime expected shortly as all LEDAS services are moved to a new server.
The Vela supernova remnant

This image shows the Vela supernova remnant, a rapidly expanding ball of gas ejected during the death of a star. The gas glows as it collides with interstellar material, creating a cloud of emission 8.3 degrees across. This corresponds to a linear extent of 235 light years at the cloud itself and, given the age of the remnant, means that the front of the cloud is expanding at over 3000 kilometers per second.

 
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