15-06-2015 15:00

A British teenager was helping out at a university. He was studying data from cameras which are in South Africa.

These cameras pick up light from distant stars. Sometimes, planets pass in front of the stars and the intensity of the light decreases. The 15-year-old discovered a planet like this.

Scientists now know for sure that the planet exists. It is located about 1,000 light years away, and it is waiting to be named.

When he finishes school, the teen plans to study physics at university.

Difficult words: distant (very far away), intensity (how powerful something is), decrease (to become less).

You can read the original story and watch the video in the Level 3 section.