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

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

Go outside on the next clear night and look to the north and you'll see the famous W-shaped constellation of Cassiopeia. Once you’ve seen its five bright stars in a familiar shape you’ll never be able ...

The Bubble Nebula (NGC 7635) is an emission nebula situated in the constellation Cassiopeia, positioned 0.6° southeast of the open cluster M52. This spherical feature marks the boundary where an ...

In this composite photo of supernova remnant Cassiopeia A, created by meshing x-ray images from the Chandra Observatory, visible images from the Hubble Telescope and infrared images from the James ...

Dave Doctor from Las Cruces, New Mexico Sharpless 2–200 in Cassiopeia is a planetary nebula - the remains of a dying star ...

The brightest stars embedded in nebulae throughout our galaxy pour out a torrent of radiation that eats into vast clouds of hydrogen gas – the raw material for building new stars. This etching process ...

The supernova that caused the nebula was recorded by Japanese and Chinese astronomers in the 12th century. Now, we know exactly what the aftermath looks like. Reading time 3 minutes Somewhere out in ...