The Astronomical Society of the Pacific is an international non-profit scientific and educational organization,
founded in 1889, that works to increase understanding and appreciation of astronomy.
Learn more and get involved

Mercury Online

Space News & Opinion

January 22, 2020

By the Light of Earth, Moon Mysteries Shine

byJennifer Birriel

Earthshine: A tool to study Earth’s albedo and (possibly) permanently shadowed lunar features.

January 5, 2020

The TMT: A Spotlight on Hawai'i

byIan O'Neill

How can our thirst for knowledge better serve all of humanity?

View Mercury Archives

ASP News

On the Inside

January 23, 2020

The ASP is now accepting nominations for select 2020 ASP Awards

January 6, 2020

Silicon Valley Lecture Series kicks off 2020 on how we got the first black hole image

View ASP News Archives

Educational Activities

The ASP provides activities and resources to help better understand and share the wonder of astronomy as the gateway to science literacy.
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Events

The ASP Annual Meeting, Awards Gala, and select events and lectures, help us share our programs and resources, as well as celebrate the work of noted educators, astronomy researchers, and amateur astronomers.
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Programs

Our programs and resources further our mission to support the "intermediate communicators" - those who share the excitement of the universe with others through education and public outreach.
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AstroShop

The ASP's AstroShop offers a curated selection of the best astronomy-related educational and outreach materials available. All proceeds support the mission and programs of the ASP.
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