The Christmas Tree Cluster and Dark Matter | Space is Weird (+ MERCH ANNOUNCEMENT!)

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What does the Christmas Tree cluster have to do with dark matter? And why is it pink, not green?! All this plus how to spot it for yourself in the sky in this episode of #spaceisweird #weirdisgood

????I have MERCH ????shipping to UK, EU, USA, Canada, Australia and more:

???? My sister designed all my merch, check out her Etsy store:
????and the phases of the Moon print that I commissioned from her that inspired the "Toenail Moon" T-shirt:


00:00 Introduction
00:46 Merch Announcement!
03:41 Find in the sky
05:26 Dark matter connection
07:54 Why is it pink?!
10:21 Bloopers

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???? "Space: 10 Things You Should Know":

???? US & Canada version: "Space at the speed of light" (same book, different title):

???? German translation "Das kleine Buch vom großen Knall" :

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???? Royal Astronomical Society Podcast that I co-host:

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???? Don't forget to subscribe and click the little bell icon to be notified when I post a new video!

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The artwork in the background is a scientifically accurate map showing the orbits of more than 18000 asteroids in the Solar System, created by Eleanor Lutz. Find out more and buy one here:

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????????‍???? I'm Dr Becky Smethurst, an astrophysicist at the University of Oxford. I love making videos about science with an unnatural level of enthusiasm. I like to focus on how we know things, not just what we know. And especially, the things we still don't know. If you've ever wondered about something in space and couldn't find an answer online - you can ask me! My day job is to do research into how supermassive black holes can affect the galaxies that they live in. In particular, I look at whether the energy output from the disk of material orbiting around a growing supermassive black hole can stop a galaxy from forming stars.
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