News Main Animals Archaeology Dinosaurs Earth History Human Animal Space Tech   NASA/S. Pineault, DRAO |   Supernova Surprise This map of supernova CTA 1's 1420 MHz radio emission highlights the remnant's expanding shell. The shell is about three times the apparent size of a full moon.| Discovery Space Video   « back to article

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Image Credits NASA/S. Pineault, DRAO |

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