A Galaxy with NO STARS - Deep Sky Videos @DeepSkyVideos

Uploaded February 2026 | Updated September 2026, 2 weeks ago

Dr Emma Chapman discusses Cloud-9 - a deep sky object that has all the ingredients of a galaxy except the stars. More links and info in full description ↓↓↓

The First RELHIC? Cloud-9 is a Starless Gas Cloud (paper): iopscience.iop.org/article/10.3847/2041-8213/ae1584

Emma Chapman is based a the University of Nottingham. More about her and her latest book here: https://linktr.ee/RadioUniverseBook

Messier Objects playlist: bit.ly/MessierObjects

Back us on Patreon: patreon.com/deepskyvideos

Astronomy at The University of Nottingham: nottingham.ac.uk/astronomy

Video by Brady Haran
Latest from Brady across his projects: bradyharanblog.com

A Galaxy with NO STARS - Deep Sky Videos

$Why are stars spiky? - Deep Sky Videos Why do photos of stars often have spiky, pointy bits of them? These are called diffraction spikes and some people even add them artificially! Here are explained by Professor Mike Merrifield (University of Nottingham) and Nik Szmanek (astrophotographer). Mike tweets at https://twitter.com/ProfMike_M Some image credits: Philip Perkins: www.astrocruise.com/ Nik Szymanek: http://ccdland.net Fred Espenak: http://astropixels.com Deep Sky Videos website: http://www.deepskyvideos.com/ Twitter: https://twitter.com/#!/DeepSkyVideos Facebook: http://www.facebook.com/DeepSkyVideos Flickr: http://www.flickr.com/photos/68847473@N02/ More about the astronomers in our videos: http://www.deepskyvideos.com/pages/contributors.html Videos by Brady Haran A run-down of Bradys channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html$

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