Exoplanets

Fresh observations from the James Webb Space Telescope show how vivid auroras surge through Uranus’s tilted magnetic field

Four worlds around a small, dim star are challenging theories of planet formation

An exoplanet called HD 137010 b might be the closest thing astronomers have ever seen to “Earth 2.0.” The trouble is that it’s only been seen once—and may never be glimpsed again

Comets don’t just orbit our sun. “Exocomets” are common around other stars in the galaxy, too

Data from the James Webb Space Telescope and other observatories suggests a supervolcanic exomoon may lurk around the giant exoplanet WASP-39b

Space scientists look back on three decades of exoplanet discoveries—from rows of massive ‘super-Earths‘ to worlds with perfectly synchronized orbits

The Habitable Worlds Observatory is poised to tell us whether Earth-like planets are common—if it can get off the ground

Hot, small and old—exoplanet TOI-561 b is just about the worst place to look for alien air. Scientists using JWST found it there anyway

It’s a crowded galaxy, the latest exoplanet tally shows

A monumental sign of an atmosphere on TRAPPIST-1e could be the precursor to finally finding a living world around another star

Fresh results from near-infrared instruments foretell a bright future for finding life elsewhere in the Milky Way

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