Explore Light
Astronomers use telescopes to see objects far away in space. Did you know that we can only see an object if it emits light or if it reflects light?
Calculate Your Weight on Another Planet
Why Does the Moon Have Phases?
The Moon is the brightest object in the night sky when its whole face is showing. This only happens at full Moon. So why isn't it always a full Moon?
The 'Space Weight' Calculator
Ever wondered how heavy or light you would feel on another planet in our Solar System?
Why Does the Earth Have Tides?
The level of the sea rises and falls about 2 times each day. We call these changes tides. But what causes them?
Gravity Simulator
Is gravity the same everywhere? Experiment with how the ball reacts in each of the Solar System locations by dropping or throwing the ball. How similar or different is each location to Earth?