Learning resource
What is Gravity?
From Newton’s longstanding ideas to Einstein’s revolutionary theories, Royal Observatory Greenwich astronomers explain how our understanding of gravity has changed from looking at how gravity affects us in our daily lives and how it governs what we observe in space.
Learning resource
What’s inside a black hole?
Royal Observatory astronomer Rad explains where black holes come from, how we know they’re there and the strange effects they have on surrounding matter. 
Learning resource
How big is the Universe?
Royal Observatory astronomer Liz shows us the expanding nature of the Universe and how this affects the light reaching us from distant galaxies, some of which will remain forever hidden from our view.
Learning resource
The Rosetta Mission
The Rosetta Mission has captured the interest and imagination of a generation and it is not over yet! Take a look at our video which explains what Rosetta and Philae have achieved as well as the impact the mission has had on our knowledge of our very own solar system.
Learning resource
Space rocks
There are lots of names associated with space rocks, so what is the difference? Join the Royal Observatory Greenwich astronomers to find out.
Learning resource
Newton's Laws of Motion
Join our Royal Observatory Greenwich astronomers as they go on an epic journey to find out how Newton's Laws of Motion work in space. Buckle your seatbelts, you're in for an adventure!
Learning resource
Are there aliens?
Life began on the Earth around 3.5 billion years ago. Could life have evolved on other planets and if so where are they? Astronomers at the Royal Observatory Greenwich explain how we might detect them in this video.
Learning resource
Shadows On Other Worlds
Join the astronomers at the Royal Observatory Greenwich as they go on an adventure to discover what shadows look like on other worlds.
Learning resource
Seeing the Invisible
Imagine what it would be like to have super powers and see the invisible - sounds pretty fun doesn't it? Join the Royal Observatory Greenwich astronomers as they explore the science behind some seemingly invisible and sneaky forces in space.
Learning resource
Exploring moons
Our Moon is just one of many moons in the solar system. Join Royal Observatory Greenwich astronomers as they explore some of the different properties and characteristics of a few weird and interesting moons orbiting around the other planets.