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Running Time:
00:01:04
See how patterns of light change throughout the day at Chaco, and hear G.B. Cornucopia and Shelly Valdez share their impressions of the phenomena of light cycles in Chaco Canyon.

Project: Ancient Observatories: Chaco Canyon | Browse All

Date: December 2, 2010
Format: Expedition
Category: Everyday Science
Subject(s): Geology/Earth Science, Astronomy/Space Science
Running Time:
02:03:07
Celebrate the spring equinox at the Mayan ruins of Chichén Itzá, in the state of Yucatan, Mexico. The alignment of the sun on this day creates the appearance of a shadow, in the form of a serpent, that descends the main staircase of the great pyramid. The Live@Exploratorium crew is there to capture the snake on film and to speak with local archaeologists, archeoastronomers, and solar scientists about this amazing phenomenon.

Project: Ancient Observatories: Chichén Itzá | Browse All

Date: March 21, 2005
Format: Expedition
Category: History of Science
Subject(s): Astronomy/Space Science, General Science
Running Time:
0:59:00
Join the Live@ crew and NASA scientists as we delve into the ancient knowledge of the Chacoans, daily sky watchers who amassed a great knowledge about the movements of the sun. And learn why today's astronomers and solar physicists continue to watch the sun, using modern ground-based observatories and orbiting space telescopes.

Project: Ancient Observatories: Chaco Canyon | Browse All

Date: December 21, 2004
Format: Expedition
Category: History of Science
Subject(s): Physics, History
Running Time:
00:03:02
Join us in Chaco Canyon to think about what we can learn from watching shadows.

Project: Ancient Observatories: Chaco Canyon | Browse All

Date: October 7, 2004
Format: Expedition
Category: Everyday Science
Subject(s): Astronomy/Space Science, Geology/Earth Science
Running Time:
00:00:27
Watch as the square of light moves across the wall and niches at Rinconada.

Project: Ancient Observatories: Chaco Canyon | Browse All

Date: October 7, 2004
Format: Expedition
Category: Everyday Science
Subject(s): Astronomy/Space Science, Geology/Earth Science
Running Time:
00:00:48
See the movement of shadow on the North/South wall.

Project: Ancient Observatories: Chaco Canyon | Browse All

Date: October 7, 2004
Format: Expedition
Category: Everyday Science
Subject(s): Astronomy/Space Science, Geology/Earth Science