Nearly 900 years ago, astronomers spotted a strange, bright light in the sky. We finally know what caused it. – Livescience.com
Science News
- Nearly 900 years ago, astronomers spotted a strange, bright light in the sky. We finally know what caused it. Livescience.com
- Astronomers solve centuries-old mystery of supernova observed in 1181 Ars Technica
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Source: Science News