John Wilhelm and Alexander Herschel. La nascita ed il primo periodo. La diffusione del pensiero copernicano.

Globe at Night is an international citizen-science campaign to raise public awareness of the impact of light pollution by inviting citizen-scientists to measure and submit their night sky brightness observations. Join us for the April, 2018 campaign! So far in 2018 citizen scientists from around the world have contributed.

How to Find the Milky Way. How to Photograph the Milky Way. How to Pick a Lens for Milky Way Photography. Advanced Astrophotography Shutter Time Calculator.

Exciting Newsflashes on 3D Printing, Light and Optics. Experience the Magic of Bioluminescence. Unbelievably Cool Bioluminescent Organisms in 10 Videos. Bioluminescent animals are definitely amongs the coolest creatures on earth. Found in the shorelines of A.

Steve Rabey is an award-winning writer, editor, and consultant who has published more than 2,000 articles in publications including The New York Times, The Los Angeles Times and The Washington Post. Steve has authored three dozen books, and consults with individuals, organizations and corporations that want to hone their messaging.

The SAS was founded in 1975 to foster the development of amateur Astronomy in the east-central Michigan area. Members come from all walks of life and span a wide range of ages. Our activities include observing sessions, annual public star parties, and friendly meetings where we share our common interest and learn from formal presentations and each other. If you are interested in astronomy, please join us at one of our monthly meetings.

Millican Photography Photography by Larry and Gayle Millican. Photography by Larry and Gayle Millican. It is the end of another year! During the winter, it seemed we had an unusually high number of goldfinches at our backyard feeders. They are fun to watch! .