THE UNIVERSE

5 INTERESTING FACTS ABOUT THE UNIVERSE

1. You can detect the cosmic background radiation

Cosmic background radiation is the heat of the primitive universe, after the big-bang, 13.7 billion years ago. This cosmic radiation exists in all the universe, and amazingly we can use an old television to catch it. When a television is not tuned to a station you can see the black and white squares moving, around 1% of this interference is made up cosmic background radiation.

2. The nearest habitable planet is at 4 light-years.

The closest habitable planet is on the star system Alpha Centauri that is at 4.3 years-light, so if we want to leave the earth, we will have to improve our technology.

3. Neutron stars and their weight

A Neutron star is a type of star that is made by neutrons and it’s close so become a black hole but it won’t do it.
Do you know what the weight of a neutron star is? A star of this type can measure only as a pinhead and it would have the same weight as a million tons.

4. It takes 225 million years for our Sun to travel round the galaxy

Whilst the Earth and the other planets within our solar system orbit around the Sun, the Sun itself is orbiting around the centre of our galaxy, the Milky Way. It takes the Sun 225 million years to perform a complete circuit of the galaxy. The last time the Sun was in its current position in the galaxy the super-continent Pangea was just about starting to break apart and early dinosaurs were making an appearance.

5. The Universe and the H bombs
It is known that 65 million years ago, when the Universe was created, there was an explosion, the Big Bang, and this explosion was like 10 million hydrogen bombs.

  

By: Pol Besalú, Aleix Serrat, Gerard Boadas