Sizing Up Space
How big is the distance between the Earth and the Sun - or between the Sun and the other planets?
Discover the Light Year, the very large 'ruler' that scientists use to measure the size of Space.
Be amazed by the ever-increasing distances to the nearest stars, to the edge of the Milky Way and to the farthest galaxies in the Universe.
KS2 - KS3 / Families
Length: 13 min
Full preview below.