A newly discovered exoplanet is rewriting the rules of what planets can be. Orbiting a city-sized neutron star, this ...

Scientists using the James Webb telescope observed a distant exoplanet with an atmosphere of soot and diamonds, challenging ...

One of the primary goals of the James Webb Space Telescope (JWST) is to detect atmospheres around exoplanets, to try to suss ...

Astronomers have uncovered a massive hidden planet and a rare “failed star” by combining ultra-precise space data with some of the sharpest ground-based images ever taken. Using the Subaru Telescope ...

For skywatchers, 2026 kicks off with a great chance to view Jupiter at its biggest and brightest, according to NASA’s latest ...

Fourth anniversaries aren’t often causes for celebration. But in the case of the James Webb Space Telescope (JWST), which ...

NASA’s SPHEREx space telescope has mapped the entire sky in 102 infrared colors for the first time, revealing cosmic secrets ...

With sapphire waterfalls, lava rain and orbits around dead stars, these distant worlds push the limits of what’s possible.

Pluribus imagines Kepler-22b as an ocean world that sends a gift to humanity through radio waves. In real life, no such ...

But that’s nothing compared with PSR J2322-2650b, an object the mass of Jupiter studied recently by the James Webb Space Telescope. This planet’s equatorial diameter is about 38 percent wider than its ...

The James Webb Space Telescope detected an atmosphere rich with carbon and helium, which is unexpected on this hot planet ...

A bevy of supermoons, a dramatic total solar eclipse and a "blood moon" total lunar eclipse are some of the highlights of the ...