Solar system

The successful lunar landing of the Chandrayaan-3 mission makes India only the fourth country to achieve the feat

Luna-25, Russia's first moon mission in nearly a half-century, was the vanguard of a planned series of lunar probes

Although Arecibo Observatory is slated to become an education center, astronomers hope research might one day return to the site

The Luna 25 spacecraft will attempt to land at the lunar south pole for the first time in a hunt for valuable water ice

The “magnitude scale” for measuring stellar brightness also reveals the limits of naked-eye stargazing

Scientists are gearing up for a high-stakes finale to OSIRIS-REx, the first U.S. mission to snare a sample from an asteroid

Revisiting the precious lunar samples on Earth suggests that some areas of the moon’s surface might be older than scientists once thought

This week—and any time there’s a new crescent moon—the lunar night is a little less dark, thanks to the bright reflected light of Earth

Get to know the stellar trio behind one of the most iconic sights in summer’s night sky

“If, by some chance, there’s another being out there that might connect to it, I wanted them to know that regardless of how it may seem sometimes, we love this Earth,” says poet Ada Limón about her poem

Our planet’s not-quite-circular orbit means that on July 6 we’ll be about 2.5 million kilometers farther from the sun than average—but we won’t feel any colder

For most of us, aliens are a source of mystery and fun, which keeps them forever in vogue