Investigate Tides
The sea level rises and falls every day. These changes are called tides. Tides happen because of the gravitational pull of the Moon and the Sun on Earth's oceans. The Moon has the strongest effect because it is much closer to Earth.
Explore Tides
The ocean’s tides rise and fall every day, but have you ever wondered what causes them? The Moon and Sun both play a role in shaping the movement of water across the Earth.
Classify Galaxies
Galaxies are vast collections containing billions of stars, planets, and massive clouds of gas, dust, and ice. Understanding galaxies is a key part of astronomy. One important tool for studying them is classification—grouping them into a few different categories.
Satellites
A satellite is an object which orbits another. An orbit is the curved path an object in space takes around another.
Space Stations
Did you know there are always humans in space?
Since 1971, men and women have been living for months at a time on space stations. These are spacecraft large enough for several astronauts to live there at once.
The Sun
The Sun is a star in the centre of our Solar System. It is the largest object and the only star in our Solar System. It is one of billions of stars in our galaxy, the Milky Way.
Earth
Near-Earth Objects
Magnetism
Since ancient times, people have known about some rocks that could attract iron. When these rocks were rubbed on other types of metal, they had the power to make them attractive too. These items could also push each other away, repelling each other.
