1. A 'Falling star' or a 'Shooting star' has nothing at all to do with a star! These amazing streaks of light you can sometimes see in the night sky, are caused by tiny bits of dust and rock called meteoroids falling into the Earth's atmosphere and burning up.
2. The planet Uranus was discovered by Sir William Herschel in 1781.
3. The planet Neptune was discovered by John Couch Adams in 1846.
4. The planet Pluto was discovered by Astronomer Clyde Tombaugh in 1930.
5. Only 3 of the 9 planets in our solar system have official 'discoverers' because all of the other planets are easily seen by the unaided human eye.
6. A Light Year is a unit of distance. It is the distance that light can travel in one year. Light moves at a velocity of about 300,000 kilometres (km) each second. So in one year, it can travel 9,500,000,000,000 kilometres.
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