Light Pollution Is “Increasing Faster Than The Human Population”

Diane Knutsen, President of the board of directors of The International Dark Sky Association, spoke on SDPB's weekday radio program, "In the Moment." Listen to the full interview by clicking the image.

History of the Black Hills Astronomical Society (BHAS)

Thanks to the diligent work of several members, history of the BHAS has been collected and is now digitally accessible. Items include: - a detailed history covering the years from 1954 to 2020 - an early history from the 1950’s including newspaper articles - collection of newspaper articles spanning the years of the club - club newsletters. Click the image to access the History page. Links to the items can be found below a brief summary of the history.

Become a Member of Black Hills Astronomical Society!

Learn more about Black Hills Astronomical Society, located in Rapid City, South Dakota, and the benefits of becoming a member.