A Mirror-Like View Of Supernova Remnant Cas A

Our telescopes show the Milky Way galaxy only as it appears from one vantage point: our solar system. B using a simple but powerful technique, astronomers have seen an exploding star or supernova from new several angles. The supernova left behind the gaseous remnant Cassiopeia A. The supernova's light washed over the Earth about 330 years ago. But light that took a longer path, reflecting off clouds of interstellar dust, is just now reaching us. This faint, reflected light is what the astronomers have detected. read more

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