Astronomy

The asteroid that exploded over Luzon was not a threat—but it was a victory for our planetary defense systems.

For more than half a century, the International Astronomical Youth Camp has attracted aspiring astronomers from around the world.

Without this restless geologic process, which triggers destructive earthquakes, Earth would not be habitable.

The next potential space voltage could be on the horizon very soon.

Northern lights in the American South, clusters of huge geomagnetic storms—the Sun is throwing a tantrum right on schedule.

Understanding the ways in which the moon has helped impact human life.

Watch the moon’s shadow from an Icelandic cliff or the Great Wall of China.

They’re continuing a long, prehistoric tradition of science art.

During the 1869 total solar eclipse, astronomers thought they had discovered a new element. They were wrong, and the truth was much weirder.

The award-winning astrophysicist and folklorist takes us on a tour of the Milky Way.

After accidentally introducing invasive moths to North America, amateur entomologist Étienne Léopold Trouvelot turned his eyes to the skies and changed science.