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Official media partner of the International Year of Astronomy. |
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September 2009 – Issue 52
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Deep-sky observing challenge
See 40 wonders in one night in this observing marathon
How to study for a GCSE in astronomy
Get more out of your hobby
The Universe's missing dimension
A chance discovery has the potential to turn cosmology on its head
Rocky revelations
Mercury is yielding its secrets to Messenger
The latest news on Jupiter's black impact scar |
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