It is difficult to imagine the difference in size between the Sun and Earth, or the distance between them. This activity will help you to visualise it. If you create this model, the Earth and Sun ...

Planetary scale model trails are letting cycling enthusiasts pedal their way through the cosmos. These trails are designed ...

Carl Sagan told us that there are more stars in the universe than there are grains of sand on all of the Earth's beaches ... to the unimaginably big, the scale of the universe is mind-boggling.