SPACE

1. Saturn’s rings are made up of particles of ice, dust and rock. Some particles are as small as grains of sand while others are much larger than skyscrapers.

2. Jupiter is larger than 1,000 Earths.

3. The Great Red Spot on Jupiter is a hurricane-like storm system that was first detected in the early 1600’s.

4. Comet Hale-Bopp is putting out approximately 250 tons of gas and dust per second. This is about 50 times more than most comets produce.

5. The Sun looks 1600 times fainter from Pluto than it does from the Earth.

6. There is a supermassive black hole right in the middle of the Milky Way galaxy that is 4 million times the mass of the Sun.

7. Halley’s Comet appears about every 76 years.

8. The orbits of most asteroids lie partially between the orbits of Mars and Jupiter.

9. Asteroids and comets are believed to be ancient remnants of the formation of our Solar System (More than 4 billion years ago!).

10. Comets are bodies of ice, rock and organic compounds that can be several miles in diameter.

11. The most dangerous asteroids, those capable of causing major regional or global disasters, usually impact the Earth only once every 100,000 years on average.

12. Some large asteroids even have their own moon.

13. Near-Earth asteriods have orbits that cross the Earth’s orbit. These could potentially impact the Earth.

14. There are over 20 million observable meteors per day.

15. Only one or two meteorites per day reach the surface of Earth.

16. The largest found meteorite was found in Hoba, Namibia. It weighed 60 tons.

17. The typical size of a meteor is about one cubic centimeter, which is equivalent to the size of a sugar cube.

18. Each day, Earth accumulate 10 to 100 tons of material.

19. There are over 100 billion galaxies in the universe.

20. The largest galaxies contain nearly 400 billion stars.

21. The risk of a falling meteorite striking a human occurs once every 9,300 years.

22. A piece of a neutron star the size of a pin point would way 1 million tons.

23. Europa, Jupiter’s moon, is completely covered in ice.

24. Light reflecting off the moon takes 1.2822 seconds to reach Earth.

25. There has only been one satellite destroyed by a meteor, it was the European Space Agency’s Olympus in 1993.

26. The International Space Station orbits at 248 miles above the Earth.

27. The Earth orbits the Sun at 66,700mph.

28. Venus spins in the opposite direction compared to the Earth and most other planets. This means that the Sun rises in the West and sets in the East.

29. The Moon is moving away from the Earth at about 34cm per year.

30. The Sun, composed mostly of helium and hydrogen, has a surface temperature of 6000 degrees Celsius.

...Did you know?

That the Sun makes up 99.86% of the Solar System's mass! That means that all the planets put together (including Jupiter) as well as all the asteroids only make up about 0.14% of the Solar System's mass

That Jupiter's magnetic field is so massive that it pours billions of Watts into Earths magnetic field every day!

That a massive body 100km wide travelling at over 512,000km/h crashed into Mercury to form the Caloris Basin. The impaact was so great it sent shockwaves round Mercury creating its hilly lineated terrain.

That just a pinhead of the Sun's raw material could kill someone up to 160 kilometres away!

That the length of a Plutonian year is 248 of our years! That means that one orbit of the Sun takes about 2 and a half Earth centuries. That's a quarter of a Millenium!

That Olympus Mons (on Mars) is the largest Volcanic mountain in the Solar System. It is 600 km across and 27 km high! And you thought Mount Everest (about 8 and a half km high) was tall! To see a great overhead picture of it click here.

That a Supernova explosion produces more energy in its first ten seconds than the Sun during the whole of its 10 billion year lifetime and that for a brief period, it creates more energy than the rest of a galaxy put together!!

That the comet with the longest ever recorded tail is the Great Comet of 1843. Its tail stretched over 800 million kilometres! This is about the same distance the Earth is from Jupiter!

That the energy in the sunlight we see today started out in the core of the Sun 30,000 years ago - it spent most of this time passing through the dense atoms that make the sun and just 8 minutes to reach us once it had left the Sun!

That almost all of the heavier elements in your body (eg calcium, iron, carbon) were made somewhere in supernovae explosions!

That some rocks found on Earth are actually pieces of Mars!

That Saturn has such a low density that it would float if put in water!

That due to the fact that water expands when heated, the Atantic ocean increses in width by 3cm every year!

That some volcanoes on Jupiter's moon Io eject material at speeds of up to 1km/second! This is about 20 times faster than the volcanoes here on Earth can manage it!

That the amount of the Sun's energy reaching the Earth's atmosphere (known as the Solar constant) is equivalent to 1.37 kw of electricity per square metre!