For a few evenings around 28 February, every planet in the solar system will be visible in the night sky, thanks to a rare great planetary alignment. Here's how to make sure you don't miss this ...

Watch this video to find out more about the Earth, planets in our Solar System and other planets far ... of asteroids of very different shapes and sizes. Some are almost spheres, like planets ...

But such events are not just a treat for stargazers – they can also have a real impact on our Solar System ... size and orbit to be discerned. Thanks to this method, we have discovered many ...