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Astrophysics

Prague's astronomical clock has marked time since the 15th century. Legend holds that local officials ordered the maker of this famous timepiece blinded to prevent him from duplicating his great achievement elsewhere.

Time for a Change

One professor’s mission to revise the calendar

The View From the Center of the Universe: Discovering Our Extraordinary Place in the Cosmos

Finding a Home in the Cosmos

In a new book written with his wife, Nancy Abrams, cosmologist Joel Primack argues that the universe was meant for us. Sort of

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Lighthouse of the Skies

The Smithsonian Astrophysical Observatory probes the universe for the unimaginable

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