At first astronomers thought they might have detected a planet around a single star somewhere in our galaxy. (sciencemag.org)
Cass A (1680): This star exploded nearly unnoticed, with only a possible identification by John Flamsteed, England's first Astronomer Royal. (discovermagazine.com)
Public Offerings Boyajian can at least take some solace that she is hardly the first astronomer to encounter a singular astronomical mystery. (discovermagazine.com)