Over 2 decades of Chandra X-ray Observatory views of the Crab Nebula and Cassiopeia A have been time-lapsed. The Chandra team ...

A new Hubble Space Telescope image offers the most detailed view of the Crab Nebula, which is located 6,500 light-years from Earth. The star V830 Orionis features NGC 1999 reflection nebula ...

https://doi.org/10.1086/316199 • https://www.jstor.org/stable/10.1086/316199 ABSTRACT Published images of the Crab Nebula have been scanned and measured to derive ...