Here’s A Spectacular Photo Of A ‘Light Echo’ Courtesy Of NASA

Here’s A Spectacular Photo Of A ‘Light Echo’ Courtesy Of NASA

light echo, NASA,

Have you ever heard of a ‘light echo’? It’s when material appears to be scattering from a certain place in the universe but that material is actually light. This particular “light echo” is about 1 million solar luminosity and happened 11 years ago.

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