How do aeroplanes fly?

For millennia humans have dreamed about being able to fly and this shows in our myths and legends; there’s Icarus,…

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How do plasma balls work?

This question was asked by Hollie from Plymouth, UK.  Plasma is sometimes known as the fourth state of matter; it…

What are gravitational waves?

In 1915 Albert Einstein predicted that when objects with an extremely dense mass collided with each other in space they…

NASA: there is water on Mars

Until 3 billion years ago, Mars was a wet planet much like our own. It had land, an extensive atmosphere…

Hoverboards are here!

  People have wanted hoverboards ever since the film Back To The Future II was released in 1989. Resembling flying…