T Coronae Borealis, a binary star system located 3,000 light-years from Earth, is a ticking time bomb waiting to explode. And if the recurring nova follows its usual pattern, we can expect to see a new, albeit temporary, star appearing in our night sky any day now.
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If you want to stay grounded—which is to say, you want a haunting reminder of your own diminutive size and mortality—do I have the tool for you.