Astronomers have discovered bizarre planets very different to Earth out in the galaxy, but will we ever locate a planet similar to our own?
The Rosetta mission was a ground-breaking expedition to land on a comet for the very first time. What did this cutting-edge journey uncover about life on Earth?
Experts explain the importance of supermassive black holes. They have some answers, but can they solve the mysteries surrounding these phenomena?
What happens when galaxies containing billions of stars collide? The gravitational forces of these giants intersect, and they are left irrevocably changed.