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When will your Great American Eclipse start?

Our eclipse widget has the answers you need to plan your eclipse day. Read more >>>
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Watch the solar eclipse live in 4K on Astronomy.com

We’ll be streaming the eclipse from Denver, Colorado, on August 21. Read more >>>
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25 facts you should know about the August 21, 2017, total solar eclipse

Astronomy's Senior Editor Michael Bakich covers 25 important things to think about for this summer's total solar eclipse. Read more>>>
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Questions about SETI? Ask a Laser SETI scientist.

We're featuring a guest blog by a SETI scientist, who will answer your questions. Read more >>>
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3rd gravitational wave detection is about much more than black holes

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Enceladus’ sea floor has hydrothermal vents like ours

Where there's heat and water on Earth, there's life. Read more >>>
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Get ready for our first image of a black hole

The Event Horizon Telescope will peer into the space immediately surrounding our galaxy's supermassive black hole. Read more >>>
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Join our newest Norway Aurora Tour

See the sights and sounds of the Arctic Circle, and see one of the most spectacular light shows on Earth. Click here>>>
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Join our Costa Rica tour

Journey to the Central American paradise for the Southern Sky Party. Read more >>>
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Check out our longform features!

When big news happens or a huge story needs to be told, it's time to dig deep. Read more>>>
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The Real Reality Show

Join our editor-in-chief David Eicher on an expedition through the heart of science headlines. Read More>>>

Learn to identify 36 constellations

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Get to know Pluto with this 12" globe from Astronomy.

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Prepare for totality

Find everything you need to know about the 2017 solar eclipse, all in one place. READ MORE>>

Fast radio burst "afterglow" is a black hole

The signal came from a galaxy's core, not the burst. Learn more »

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New Planet 9?

If this giant world exists, it would be 10 times the mass of the Earth.

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When will your Great American Eclipse start?

Our eclipse widget has the answers you need to plan your eclipse day. Read more >>>
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