How to detect a supernova – Samantha Kuula

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Just now, somewhere in the universe, a star exploded. In fact, a supernova occurs every second or so in the observable universe. Yet, we’ve never actually been able to watch a supernova in its first violent moments. Is early detection possible? Samantha Kuula details the science behind an early supernova warning system.

Lesson by Samantha Kuula, animation by Nick Hilditch.