Did you know?
When supernovae explode they jettison matter into space at between 9,000 to 25,000 miles (15,000 to 40,000 kilometres) per second.
Earth is the only planet in the solar system where water can be found in all three of its states - solid, liquid and gas.
Artificial satellites in space allow us send information all over the world.
A nebula is composed of dust, helium, hydrogen and other ionised gases. These form a cloud which will attract further matter to eventually form stars.
The record for the "largest gathering of people dressed as Star Trek characters" is 99 people.
Many stars appear yellowish white to the human eye because of their contrasting colour to the night sky.
Big Bang theory is based on the idea that the universe is continually expanding and cooling. It is currently the most popular explanation for how the universe began.
The first clear photo of the Earth illuminated taken from space is known as the Blue Marble. It was taken by the crew of the Apollo 17 in December 1972.
Our own galaxy, the Milky Way consists of at least 200 billion and maybe as many as 400 billion stars.
The Orion nebula is one of the brightest known nebulae and is clearly visible in the night sky with the naked eye.