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...learn about what was going on in stars’ final moments, when their cores were collapsing and their outer layers were being expelled. It may seem that black holes are by definition invisible – they after all earned their name through their ability to trap light. But we can still detect them through the way they interact with other objects thanks to their strong gravity....

...Learn more about the geological processes in the British Isles with this free course. 4. Shepherd throws rock into cave and discovers origins of Christianity [cave and rocks underground] Who knows what treasures your local cave can hold? Back in the 1940s, a young shepherd called Muhammed Edh-Dhib from Qumran in the West Bank got bored while looking for a stray goat. So...

...Learn about Moon rocks The video below explains how to view Moon rocks under a Virtual Microscope and what we can discover. Transcript My name is Mahesh Anand and I investigate Moon rocks collected by the Apollo astronauts. These Moon rocks are on loan from NASA for our research - which as you can see - we keep safe and sound. They may look tiny, but these precious...

...learn about tides and ocean icebergs, to define a climate cycle and to determine the composition of the land masses – are they derived from basalt, the most common rock type in the solar system, or are they frozen ice and mud? Does Titan have a rocky core overlain directly by an icy mantle, or does it have an ocean below the surface? If so, is it made up of water? This...