Venture into another dimension and discover all about astronomy and the study of celestial objects, such as stars, comets, planets and asteroids. Plus, how you can be captivated by the wonders of the universe at the Peter Harrison Planetarium at Royal Observatory Greenwich. 


How the humble prism helped unlock the secrets of what the Universe is made of and where it is heading.

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It's beautiful, sure, but can you imagine what it is used for?

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What is it, when is it and where can I see the Geminid meteor shower this year?


19th-century astronomers went beyond cataloguing the skies to understanding their composition and predicting what could not be seen.


Did you know if you looked through this you could see what the Universe is made of?

Lunar Eclipse and Occultation © Jathin Premjith, Astronomy Photographer of the Year Young Winner 2011

Find out what a lunar eclipse is and when the next total lunar eclipse in the UK will occur, as well as expert tips on how to see it from astronomers at the Royal Observatory Greenwich.

How and, more importantly, why do we measure the brightness of stars?

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Useful tips from the space experts at the Royal Observatory Greenwich on how to become an astronomer

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What is it, when is it and where can I see the Quadrantid meteor shower this year?


The challenges of measuring everything from a fast-moving, wobbly platform through a haze.