Some stars explode as they die. We look at their life cycle

This summer, scientists have their eyes and telescopes trained on the small constellation system T Coronae Borealis. They think it will explode as part of a periodic nova - a once-in-a-lifetime event according to NASA scientists.

Sarafina El-Badry Nance, an astrophysicist, delves into the stages of life a star like Betelgeuse, a red supergiant in Orion, experiences before reaching its end.

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