Kepler's Laws: Find the Mass of the Sun
Many years ago, a mathematician named Johannes Kepler created a set of rules explaining planets' movement in our Solar System.
Calculate Your Weight on Another Planet
Create An Expanding Universe
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?
Calculate Your Age on Another Planet
Timeline of Astronomy
Did you know that our understanding of science and space had gradually been built over thousands of years? Discover the people from the past whose observations and experiments helped us understand our Solar System and the