@jllenaaah Black holes can't be observed directly, but we can study their effect on other objects! Read more: http://science.nasa.gov/astrophysics/focus-areas/black-holes/ …
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@NASAWebbTelescp@PaxNostrum Next time someone tells you something's too big to fail, point them at a supernova.Thanks. Twitter will use this to make your timeline better. UndoUndo
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