Astronomy

Using the powerful James Webb Space Telescope, scientists have spotted a moon nestled near Uranus’s rings that’s so small you could walk around it

The search for extraterrestrial life has periodically been turned upside down

Neptune’s discovery was a race that ended not long after this magazine came to be

The Perseids are the best annual meteor shower, but this year’s show will be dimmed by a bright gibbous moon

Bizarre phenomena called light echoes create strange, shifting shapes seen in some telescopic images and help astronomers chart the heavens above

In some of its most ambitious work yet, the James Webb Space Telescope looked to spot a planet in a potentially habitable orbit around Alpha Centauri A, the nearest sunlike star to our solar system

Satellite streaks are ruining astronomical images. Can scientists and space companies find solutions before it’s too late?

Scientists are uncovering how spinning black holes launch jets, warp spacetime and shape the cosmos

The Southern Delta Aquariids and the Alpha Capricornids are due to peak at the same time and may add up to something magical

Astronomers think small space rocks from beyond our solar system routinely strike Earth—but proving it isn’t easy

Less than a decade since the first detection of gravitational waves—ripples in spacetime itself—proposed budget cuts threaten to silence this groundbreaking science

Scientists are racing to learn as much as possible about the interstellar comet 3I/ATLAS before it fades from view forever