Space physics
The Earth and the solar system
The solar system is made up of the Sun (our nearest star) and the objects that orbit around it, including planets, asteroids and comets.
Stars and the Universe
The Sun is our nearest star. It is a relatively small star when compared to other stars in the universe. Our Solar System contains the Sun and everything that orbits it.
Video playlist
What are days, seasons and years? Video
As the Earth cycles around the Sun, the length of days and nights change.
Day, night and seasons. Video
Short demo to answer: why do we have day, night and seasons?
