The Once and Future Griffith Observatory

American dancer and choreographer Hermes Pan recalls his life and work as he relives the glorious history of the Hollywood musical.

What forms might life take in the Solar System and beyond? In the Academy's newest original planetarium show, see how a deeper understanding of Earth might help us locate other living worlds, light years away.

CERN and the University of California-Santa Barbara are collaborating in the search for the elusive substance that physicists and astronomers believe holds the universe together -- dark matter. Where is this search now in the realm of particle physics and what comes next?

For the first time one of Hollywood's greatest stars tells his own story, in his own words. From a childhood of poverty to global fame, Cary Grant, the ultimate self-made star, explores his own screen image and what it took to create it.

Chaco Canyon, located in northwest New Mexico, is perhaps the only site in the world constructed in an elaborate pattern that mirrors the yearly cycle of the sun and the 19-year cycle of the moon. How did an ancient civilization, with no known written language, arrange its buildings into a virtual celestial calendar, spanning an area roughly the size of Ireland?

Cave paintings and lunar calendars exist in the caves and remains of prehistoric hunters studied recently. What if Prehistoric Man were clever enough to develop in depth scientific knowledge? As unlikely as it may seem, new data tend to prove that Prehistoric Man actually invented Astronomy!

The Faraway Nearby follows the tragic life of pioneer physicist Joseph Weber, whose pursuit of gravitational waves takes him on a dizzying journey from the height of acclaim to the depths of despair and disdain when he breaks the cardinal rule of science and clings to his ideas though his results can't be duplicated. Physicists, artists, and other creatives explore the emotional side of discovery and question whether the risk is worth the journey.

The loss of the Bill E. Gordon radio telescope has left a void in the world of radio science, the mountains that cradled it, and the hearts of many visitors and enthusiasts who appreciated the beautiful engineering marvel. It’s a difficult time for the scientists and those who grew up seeing the telescope every day in the fields of atmospheric science, planetary science, and Radio astronomy. Experience the legacy of a 57 year journey, from the small island of Puerto Rico to the deepest regions of the galaxy with the world's most powerful telescope.

A look at the Sun, the star that revolves at the center of the Solar System, and its representation in art throughout history.

For more than 50 years, we’ve been unsuccessfully searching for any evidence of intelligent extraterrestrial life. But, the discovery of thousands of exoplanets has meant the hope of finding them is higher than ever. If any messages could eventually be decoded and answered in any far, far away star, it could radically transform our consciousness as species and our place in the universe. A message from the stars changes life on Earth… forever.

Orson Welles — with contributions from scientists George Wald, Carl Sagan, and others — examines the possibility and implications of extraterrestrial life. In examining our perceptions of alien 'martians' from his "War of the Worlds" broadcast, to then-modern explorations of Mars, this film from NASA provides a unique glimpse at life on earth, and elsewhere in the universe.