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A Once in a Lifetime Explosion

A billion years ago, a star exploded and we can watch it today.

a multicolored explosion in space, cassiopeia
Cassiopeia, another supernova by WikiImages from Pixabay

Can you imagine working in a field where your job is to study the light that an object emits?

To add to the mystery, most of what you are looking at happened billions of years ago.




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