The Cassini spacecraft has opened our eyes to the wonders of Saturn and its moons like Enceladus and Titan with some amazing pictures - here are some of our favourites of the planet, its rings and moons, including the last one ever taken.
Launched into space in 1977 to study the outer planets, Voyager 1 has become the first man-made object to leave the Solar System. To celebrate its incredible achievement, we look back at the highlights of its epic journey.
It’s one of the strangest substances in the Universe, but we wouldn’t exist without it. From H20 to the water cycle, understand the wonderful science of water.