1. The largest moon in the Solar System is the Jupiter’s moon Ganymede. 2. The Milky Way galaxy is whirling rapidly, spinning our sun and all its other stars at around 100 million km per hour. 3. The Sun travels around the galaxy once every 200 million years – a journey of 100,000 light years. 4. The Universe is probably about 15 billion years old, but the estimations vary. 5. During the moon landing, a mirror was left on the Moon’s surface to reflect a laser beam which measured the Moon’s distance from the Earth with amazing accuracy. 6. The first rockets were made 1,000 years ago in China. 7. Robert Goddard launched the very first liquid-fuel rocket in 1926. 8. Over 100 artificial satellites are now launched into space every year, a few of which are space telescopes. 9. Jupiter spins right round in less than 10 hours which means that the planet’s surface is moving at nearly 50,000 km/hr. 10. The slowest rotating planet is Venus, which takes 243.01 days to turn around. 11. The sun is about 5 billion years old and half a way through its life – as a medium sized star it will probably live for around 10 billion years.
Posted on: Sat, 07 Sep 2013 00:24:47 +0000
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