Look up and you might see the bright constellation Cassiopeia trace a zig-zag across the sky as it seemingly always has. But almost 450 years ago, it was the source of surprise: A bright flash, Tycho’s supernova, or “SN 1572" as scientists call it. This was one of the few supernovae humans have been able to see with…
Source: Gizmodo – A Famous Supernova’s Mysteries Are Still Unraveling Hundreds of Years Later