Kicking Off the Celebration

AAS President Dara Norman shares her excitement in this message to the community.

Read the President's Message

Explore the Interactive Timeline

Explore our interactive timeline celebrating the history of the AAS and the remarkable astronomical discoveries over the last 125 years. You can view specific events by hovering over the year, the dot, or the text box.

Explore Our Interactive Timeline: 1899 – 2024

175 Years of the Astronomical Journal

Over its 175-year tenure, the AJ has remained a premier place to publish astronomical observations and interpretation, analysis techniques, and instrumentation — and, more recently, innovations in software and computing.

View the Timeline: 1849–2024

Support the AAS

To celebrate the founding of the American Astronomical Society, we invite you to show your support! 

Become a Member or Rejoin the Society

In celebration of our 125th year, in September, we are offering exclusive membership benefits in 2025, including special shop discounts, a limited-edition tote bag, and more.
 
 

Join the AAS Community

Make a Donation Today

While our community is doing amazing things today, we rely on your support in several ways, including donating to the future of the astronomical sciences. Your gift to the Society matters. It helps us sustain a strong and inclusive community, and makes a real difference in the lives of scientists, researchers, students, educators, and astronomy enthusiasts everywhere.

Support the AAS and Donate Now

Shop the 125th Anniversary

Find an assortment of special products honoring our 125 years of enhancing and sharing humanity's scientific understanding of the universe, as well as hundreds of items for astronomy lovers of all levels.

For a limited time, enjoy 12.5% off all orders in celebration of the AAS 125th anniversary. Promo code: AAS125

Shop and Save 12.5% Off Everything