Our team of astronomers tell us what's on view in the night sky. From comets to quasars, there is always something fascinating to discuss in the Universe.
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Prof Chris Lintott asks if we should abandon the 'water from comets’ theory
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All the information you need to spot the Moon's seas, craters and mountains - with the naked eye, binoculars or a telescope. Also available as PDFs.
What's the differences between refractor, reflector and radio telescopes? Find out about the principles behind each in this illustrated guide.
The stars may appear to be unmoving celestial fixtures, but they're actually zipping through the cosmos at enormous speeds.
Our perception of the Red Planet may have changed over
the years, but we still can't get enough of our rusty neighbour.
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Prof Chris Lintott's favourite episodes and classic moments
Horizon's intimate portrait of the man behind the visor
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