NASA
Earth, Earth’s Moon, Mars Balloons
Very specific diameters are given for blowing up three different balloons to represent, in scale, the moon, Earth, and Mars. In groups of three, amateur astronomers explore scale measurements and distance in space.
It's About Time
Orbits and Effects
What does your world revolve around? Challenge the class as they learn about orbits and the effects of them on our modern world. Young astronomers begin by measuring ellipses and calculating the eccentricity of Earth's orbit. Then, they...