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Galaxy Chronicle

Space Missions & Discoveries

A Musician’s Hobby Doubled the Size of the Known Solar System Overnight

Astronomers Just Answered a Question That’s Haunted Exoplanet Hunters for 20 Years

Jupiter’s Most Volcanic Moon Turns Out to Be Weirdly Fluffy

Space Missions & Discoveries

She Measured the Universe. Nobody Let Her Touch a Telescope.

Space Missions & Discoveries

For the First Time Ever, Something Watched Earth Disappear From Another World

Something in Cygnus Is Flinging Particles to Energies We Can Barely Comprehend, and Nobody’s Sure What

Space Missions & Discoveries

Einstein Said This Would Never Be Detected. He Was Off by 100 Years.

This Asteroid Has Been Watched for 169 Years, and It Just Turned Out to Be Three Rocks Wearing a Trench Coat

Our Neighboring Galaxy Is Slowing Down, and Nobody’s Quite Sure Why

Space Missions & Discoveries

The Farm Boy Who Built a Telescope Out of a Buick and Found a Planet

Space Missions & Discoveries

The Photo Nobody at NASA Wanted to Take

Astronomers Just Caught a Star’s Death in Its First Second, Only the Second Time Ever

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Recent Stories

Supermoon: What It Really Is, Why It Happens, and When to Catch the Next One

What Is a Constellation? A Beginner’s Guide to the Sky’s 88 Star Patterns

How Many Planets Are There? The Real Answer Is Bigger Than Eight

What Is a Galaxy? A Simple Guide to the Great Islands of Stars

How Far Is the Sun From Earth? The 93-Million-Mile Answer and Why It Keeps Changing