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Scientists speculate that it may be found on Mars, Europa or one of the other moons of Jupiter or Saturn, but it remains elusive.

4

Do aliens actually exist? Mankind has asked this question since we first stared up into the night sky wondering if there is anyone else out there, somewhere amongst the billions of stars, or if we are really alone in this vast universe.

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As the plane cuts through the air, the air that flows over the top of its wings has to travel a greater distance than the air flowing underneath its wings. So the air has to travel faster over the top than the bottom. Hence the air pressure on the top and bottom of the wings produces an upward force or lift that pushes the wings upwards.

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Take a whistle stop tour of some of the most spectacular radio telescopes in the world and find out about what actually goes on there. On almost all of the continents these giants command the landscape as they survey the skies.

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Scientists are having ideas about new space exploration and some of them might just work!

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The space shuttle will soon be phased out. What will it be replaced by? How will the new Obama administration effect America’s future in space.

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Space exploration has enticed generations of children into pursuing a career in aeronautics. But is the space program really worth the money spent on it?