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Star-gazing – Seeing in Dim Light
How can you see an object by not looking at it? Why do aurorae and deep-sky objects tend to look grey? How can an eyepatch and a red flashlight be useful to an astronomer? Why can a camera flash ruin a night's observing? Answers to all these questions are related to the way our eyes react to light.

Red Dwarfs - Ten Facts for Kids
If you go outside on a clear dark night, you might see a few thousand stars. But without a telescope, not a single one will be the most common type of star in the Universe. You won't see red dwarfs, the stars that will still be shining in the far distant future when all the others have died.

Life and Death of the Sun
In the distant future the Sun will be many times its present size and thousands of times brighter. It will seed the Galaxy with elements like carbon and oxygen–perhaps for life on a world yet unborn. Then it will collapse into a tiny dead sphere. For a time, a beautiful nebula will mark its place.

Triton – Captive Moon of Neptune
The Solar System's big moons are weird and wonderful, and Triton is no exception. It has ice volcanoes. Its "cantaloupe terrain" is unique in the Solar System. It's unlike the other large moons. And it orbits in the wrong direction, so it didn't form near Neptune. But where did it come from?

What Is Space Weather
Everybody knows what weather is – sun, rain, wind, cloud, etc. But there's no atmosphere in space, so what is space weather? It can endanger astronauts, and in our technological world, a severe solar storm could affect everybody.

Astronomy Photographer of the Year 2014
It isn't often that you can find in one place a serene aurora, a violent Sun and an eclipsed one, and both a stellar nursery and a stellar graveyard. However the Royal Observatory Greenwich provides such sights on exhibiting the winners of the Astronomy Photographer of the Year competition.

The New Martians – book review
Fast forward to 2035. The first manned Mars expedition is going home, and things have started to go wrong. The psychological pressures of being a small group spending a few years together in a hostile environment are getting to them. They're also unaware that they've acquired a hitchhiker.

How the Sun Was Born – Facts for Kids
The Sun didn't exist five billion years ago. But the material to make it did. There was even enough to make a number of stars and still have material left over for planets, moons and other small bodies. What was this material, and how did it end up as stars and planets?

Do Red Dwarfs Live Forever
Looking up at a clear, dark sky, you can see thousands of stars. Yet without binoculars or a telescope, the most common type of star is invisible. These are the small, cool red dwarfs that fill the sky and live practically forever.

Lacaille's skies – Arts
Much of the southern sky wasn't visible to the ancient Mediterranean civilizations. Instead of representing the ancient myths, the constellations were invented long afterwards by European explorers and astronomers. Some of Abbe Lacaille's inventions are tributes to the arts.

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