Northern Ireland Key Stage 3

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. 

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. 

How do we find asteroids?

Distances to objects in space are very, very large. The nearest star (excluding the Sun), Alpha Centauri, is 41.23 trillion km, or 41,320,000,000,000 km!!