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Solving the persistent mystery of dark energy

It dominates the universe, yet remains the biggest discovery we don’t understand. Read more >>>

Secrets of the Crab

An ancient supernova helped unravel the cosmos. Read more >>>

Voyager's Grand Tour

The twin probes redefined our solar system. Read more >>>

You can photograph the night sky's gems

Find out everything you need to know about astrophotography in this free guide from Astronomy and Celestron. Get it here >>>

A new way to supersize baby black holes

Circling within the accretion disk of a supermassive black hole, smaller stellar-sized black holes may find plenty to eat. Read more >>>

Sharing the skies above Chile

The Astronomy in Chile Educator Ambassadors Program explores the unique collaboration forged by U.S. astronomy observatories in Chile. Read more >>>

Vast lake of liquid water discovered on Mars

Is the debate over water on the Red Planet over? Read more >>>

A cosmic particle from a distant galaxy hits Earth

A single high-energy neutrino is traced to its origin. Read more >>>

Supermassive Black Hole Caught Sucking Energy From Nearby Starlight

Astronomers have long had their eye on the stars that circle our galaxy's supermassive black hole. Read more >>>

Join us!

Beneath Arizona's vast, clear skies you find some of most exciting astronomical destinations in the world. Learn more >>

The Seven Best Travel Spots In Our Solar System

And how to die there. Read more >>>

Backstage Pass: Chicago

Your personal DVD tour of Chicagoland's best science institutions is waiting!

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Our Milky Way

Astronomy magazine and artist Jon Lomberg highlight our home galaxy: the Milky Way. Learn more >>

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An organically grown planet definition

In an Astronomy magazine exclusive, planetary scientists Kirby Runyon and Alan Stern ask an important question: Should we really define a word by voting? Read more >>>

Can we live on Mars?

Everything you need to know about settling the Red Planet. Download now for free!

Table for one?

The Fermi Paradox attempts to settle the issue of our apparent aloneness in the universe. Read more >>>

Join us in Costa Rica!

Join us as we carry on a great tradition: our 16th annual Costa Rica Southern Sky Party, February 27 – March 6, 2019. Learn more >>>

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Escape from a super-Earth

Achieving spaceflight from exoplanets is more difficult than you might think. Read more >>>

Remembering Stephen Hawking

Astronomy editor David Eicher remembers the great physicist in words, and the Starmus Advisory Board shares a short video tribute.

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Explore some of Iceland’s most outstanding, seldom-visited areas of natural beauty. Learn more >>

How does space change the human body?

NASA’s Twins Study sent one identical twin to space for a year, while the other stayed on Earth. Ten separate research projects then tracked how their bodies changed. Read More >>>

Astronomers catch a black hole devouring a star

Researchers-turned-forensic scientists snapped photographic evidence of a black hole ripping apart a star that got too close. Read more >>>

June 30-July 10, 2019

Enjoy spectacular eclipse viewing, Machu Picchu, and much more on this 11-day journey.
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Losing the Nobel Prize

Author Brian Keating discusses his book and its themes with Astronomy. Read more >>>

What is dead may never die

Astronomers discovered a bizarre "zombie" star that went supernova not just once, but twice. Check out our coverage of the story, or read through The Kavli Foundation's recent roundtable with three stellar experts.