The Solstice Project studies the rich astronomical heritage of the ancient Chaco culture in the American Southwest. Founded in 1978 by Anna Sofaer, our non-profit organization publishes research and produces award-winning films that document the Chaco culture’s scientific achievements.

Watch Anna Sofaer in
“The Vast Expanse of Chaco Culture”
on ¡COLORES!
Jan 15th at 4pm MST

See December 2021 Annual Letter
to view progress and trailer
of our new film Written on the Landscape

 

|  READ THE LETTER  |
|  READ MORE |

Brian Vallo, Governor of Acoma Pueblo, took critical steps to protect Chaco Canyon.

Chaco Astronomy

Book by Anna Sofaer of Solstice Project research

|  READ  |
|  SEE MORE  |

The Mystery of Chaco Canyon

Award winning film by Anna Sofaer,
Narrated by Robert Redford

The LiDAR Project

Aerial Laser scanning reveals cosmographic Chaco roads

|  FIND OUT MORE |
|  LEARN MORE  |

The Sun Dagger Explorer Model

An interactive model at the New Mexico Museum of Natural History invites exploration of the site’s solar and lunar light effects

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