We don’t know. Life might be such a fluke that it only exists on Earth. But if scientists can find just one other place where there is life, we’ll know life’s no accident – and that there could be millions of aliens!
How will we find out?
People around the world have joined the Search for Extra-Terrestrial Intelligence (SETI). They spend their spare time on computers, studying waves from space, hoping to find alien messages.
Do aliens know about us?
It’s unlikely. Humans have only been making radio waves for about a century, so aliens would have to live very nearby to tune in.
Is it true? Aliens have visited the Earth.
Probably not. There’s no proof that aliens have visited us. Even if they could travel at the speed of light, they would take at least four years to reach us from the nearest stars.
Amazing! Some people think that the Universe is a living thing – and that the planets, stars and galaxies are just parts of its ‘body’!
Picture Credit : Google