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What would happen if one night we were looking at a star, for example, Betelgeuse, and at that very moment the light of its explosion as a supernova reached us? - Quora
Irish astronomer spots second supernova
Bright Supernova Blazes in M101, the Pinwheel Galaxy - Sky & Telescope - Sky & Telescope
BBC Sky_at_Night_-_08_2022 - Night magazine august-Sky at night-Night sky
Astrophotographer captures Vela supernova remnant in exquisite detail
Superluminous supernovae: How we'll find the most powerful explosions in the Universe - BBC Science Focus Magazine
Why the night sky may be about to lose one of its brightest stars
Astroquizzical: What happens when Betelgeuse explodes?, by Jillian Scudder, Starts With A Bang!
If a star within 20 light years went nova or supernova, what would that mean for us on Earth? Are there any nearby stars with this potential in the next few thousand
What If a Supernova Exploded Close to Earth?
Astronomers Identify the Largest-Ever Cosmic Explosion, Smart News