The James Webb Space Telescope has turned one of the sky’s most famous wreckage sites into a cinematic spectacle, unveiling ...

The James Webb Space Telescope has captured new imagery of supernova remnant Cassiopeia A. It is 11,000 light-years away in ...

There’s something new and bright lurking in the night sky — and you can see it in your backyard. An amateur astronomer in Japan recently discovered a nova in the constellation Cassiopeia involving a ...

At around 7 P.M. JST on the evening of March 18, Japanese amateur astronomer Yuji Nakamura spotted something strange: A new point of light in the familiar constellation Cassiopeia the Queen.

A new study suggests the massive star that became the Cassiopeia A supernova remnant may have turned inside out as it exploded. Comparing a “before” artist’s illustration with an “after” image from ...

Cassiopeia the Queen is climbing high in the northeast on late August evenings. The constellation’s familiar “W” or “M” shape seems propped up on one side, eternally (by human standards) facing the ...