TIL in 1054, Chinese astronomers noted a bright "guest star" in Taurus that was visible in the daytime for 3 weeks, and didn't completely fade out for almost two years. The "guest star" was actually the supernova explosion that created the Crab Nebula, which is located some 6,500 light-years away.

TIL in 1054, Chinese astronomers noted a bright "guest star" in Taurus that was visible in the daytime for 3 weeks, and didn't completely fade out for almost two years. The "guest star" was actually the supernova explosion that created the Crab Nebula, which is located some 6,500 light-years away.

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