Scientists made a virtual supernova you can walk around
 

At 11,000 light-years away, it's safe to say you won't be able to visit Cassiopeia A even if private space corporations start selling seats to amateur spacefarers. Thanks to a team of scientists, though, you might be able to see the 300-year-old supe...

https://www.engadget.com/2017/12/28/...-cassiopeia-a/