Stars and galaxies
We might make wishes on stars but there's much more to these balls of gas than simply being twinkly, mystical objects in the night sky. Discover how stars are formed, how they get their names, what makes a galaxy, and the history of constellations.
Meridian astronomy is the meticulous surveying of the stars so that positions and movements of stars can be known accurately.
The challenges of measuring everything from a fast-moving, wobbly platform through a haze.
With a telescope we can see billons of miles and travel effortlessly back billions of years in time.
The 88 constellations act as a handy map of the skies and a seasonal calendar used from ancient times. But what connects the stars in the same constellation?
If you could squash the Earth into a ball the size of a marble, it would become a black hole. What are these mysterious entities?
Pulsars are among the most regular but shocking objects in the universe sending out massive bolts of electricity across space.