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Episode 3

Stargazing Live, Series 3 Episode 5 of 6

On the final night of their astronomical adventure, Brian and Dara discuss meteors, comets and asteroids and reveal how studying them reveals information about the origins of life on Earth. Meanwhile, Liz Bonnin meets the NASA team tasked with tracking any space objects on a collision course with Earth. The results of the experiment carried out by the Stargazing viewers - to explore an uncharted area on the surface of Mars - are also revealed.

59 minutes

Last on

Sat 12 Jan 2013 18:00

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

Astronomy through social media

Astronomy through social media

Web producer Simon Mackie writes about life on location for the Stargazing web team, and how they use Twitter, Flickr, live web chats and citizen science to engage with the audience at home.


Role Contributor
PresenterBrian Cox
PresenterDara O Briain
ReporterLiz Bonnin
Series ProducerAlan Holland
Executive ProducerHelen Thomas

Your favourite space film

Vote for your favourite space film

Which space-themed movie was voted top from our shortlist of old and new classics?

Join our photo group

Stargazing Live photo group

Share images, inspiration and tips with fellow photographers

Life without the Moon

Life without the Moon

Maggie Aderin-Pocock asks: Does it matter that the Moon is moving away from us?

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