Your pupils may believe that you and their parents are the oldest things in the universe, but surprise! There are elements of the universe that are even older. Elementary scientists create a class timeline to demonstrate the...

You're only 10 minutes late? Do you know how much the universe has expanded in those 10 minutes? Scholars graph supernovae based on their redshift and see if the results verify Hubble's Law. If it does confirm it, the universe is...

Explore the birth and possible death of the universe. An interactive simulation allows learners to manipulate the Hubble Constant to model the expansion of the universe from birth. Varying the constant provides different scenarios for...