Uploaded August 2012 | Updated September 2026, 2 weeks ago

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The Trifid Nebula - Messier 20 - exhibits three types of nebula in one!

Featuring Professor Mike Merrifield from the University of Nottingham. He tweets at twitter.com/ProfMike_M

With thanks to various image contributors, including Adam Block: caelumobservatory.com
More on the people who let us use their images: deepskyvideos.com/pages/image_contributors.html

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Videos by Brady Haran

Editing in this film by Stephen Slater