T Coronae Borealis: When to watch 'once-in-a-lifetime nova star system explosion

In a rare cosmic explosion called Nova, spectators will get a once-in-a-lifetime opportunity to watch the birth of a new star in our milky way, NBC News reported.This rare "nova outburst", roughly occurs once every 80 years and was last seen in 1946.The eruption will occur in the T Coronae...

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