This is comparable to an echo of sound, a light echo is produced when a sudden flash or burst of light, such as that observed in a star that went nova and is reflected off a source and arrives at the viewer some time after the initial flash.
This is how it started...
This is how it ended....cool stuff!
This illustration shows what one of the galaxies inside a blob might look like, with the spiral arms of the galaxy in yellow and white, and two-sided outflow powered by the supermassive black hole buried inside shown in bright yellow...NASA
Just thought I would share these. They are just so cool to look at!Answer Question
Answer by PMSMom10 at 12:22 AM on Mar. 22, 2013
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