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Back to Earth 3

Stargazing LIVE, Series 3 Episode 6 of 6

Brian, Dara and their guests return for an extra half hour of chat, debate and audience participation celebrating all things astronomical.

29 minutes

Last on

Thu 10 Jan 2013 21:00

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How do telescopes work?

How do telescopes work?

Do you know the differences between refractor, reflector and radio telescopes?

Find out about the principles behind each in this illustrated guide.

Astro audio slideshow

Astro audio slideshow
Astronomer Mark Thompson handpicks his favourite space pictures from the Stargazing Live Flickr group.

Watch on BBC Science

Follow @BBCStargazing

Follow @BBCStargazing
News, event details and behind-the-scene photos from the Stargazing LIVE production team. 

Follow @BBCStargazing on Twitter


Role Contributor
PresenterBrian Cox
PresenterDara O Briain
Series EditorAlan Holland
Executive ProducerHelen Thomas

Calendar 2014 (PDF)

Stargazing on BBC Playlister


'Music to Watch Stars By' from BBC Playlister, with music from Sigur Ros, Bjork and more

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