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A planetarium is a theater with a rounded ceiling onto which images of the stars and planets are projected.

VOA: special.2010.09.29

People can learn about outer space at Chicago's Adler Planetarium and about life under the sea at the Shedd Aquarium.

VOA: special.2009.01.12

Dan Neafus helps supervise the Gates Planetarium at the Denver Museum of Nature and Science in Colorado.

VOA: special.2010.09.29

The Planetarium also projects amazing 3D films on the 1, 000sqm dome-shaped screen, including voyages to the planets and creatures of the deep seas.

BBC: Search the

On February 26, Babycastles, along with open-source software developer Ivan Safrin, is turning the roof of the Planetarium into a live video game, called Space Cruiser.

FORBES: NYC's Planetarium to Become a 200-person Video Game

The beetles performed best when confronted with a perfect starry sky projected on to the planetarium dome, but coped just as well when shown only the diffuse bar of light that is the plane of our Milky Way Galaxy.

BBC: Dung beetles guided by Milky Way