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.
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Space News & Opinion
The Spring 2021 issue of Mercury (Vol. 50 no. 2) is available to members, and this issue features a new column, the story of black holes, a guide to the Kuiper Belt, astronomy's patron saint, the mysteries of our home galaxy, and more!
A dozen celestial locations in our Milky Way Galaxy boost particles to extreme energies, say astrophysicists.
On the Inside
Bring astronomy to communities across the globe
Hosted by the Astronomical Society of the Pacific with Astronomers for Planet Earth, ASP2021 virtual Summer Symposium is July 23 for a day of plenaries and workshops explore how to harness the astronomical perspective as we fight to protect our planet.