My Universe :: Hubble Diagram for hight-Z SN
This program simulates the search fora special type of supernovae explosion and measurs their brightnesses and redshifts in order to determine the content of Universe. This process eventually led to the discovery of the universe’s accelerated expansion. more..

The Island Universes :: Animation
Watch - YouTube / Small / Medium / Large / iPod
Immanuel Kant's "Island Universes" hypothesis states that stars do not fill outer space in some random manner, but rather that they are organized in huge clouds, held together by their gravity and.. more..

The Cepheids :: Animation
Henrietta Leavitt discovered the relation between the period and luminosity of cepheid variable stars. By using this relation, astronomers can estimate the distances to these stars and thus to their home galaxies..more..

Structure of the Universe:: Animation
Edwin Hubble explains how he determined the distances to several galaxies, found their sizes, and thus uncovered the structure of the universe.. more..

Time Dilation :: Game
One of Albert Einstein's greatest insights was in realizing that time is relative. It speeds up or slows down depending on how fast one thing is moving with respect to something else.. more..