Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

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

The exoplanet, dubbed PSR J2322-2650 b, has a helium-and-carbon atmosphere, something researchers say they've never seen ...

An exoplanet located 2,000 light years from Earth is so unusual it’s given astronomers the idea that it could be a totally ...

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

The giant planets weren't always where we find them today. Jupiter, Saturn, Uranus and Neptune formed in a more compact configuration and later underwent a violent reshuffling that scattered them to ...

Astronomers using the James Webb Space Telescope have discovered a bizarre-looking exoplanet that defies explanation ...

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

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 ...

When Earth was a molten inferno, water may have been locked safely underground rather than lost to space. Researchers ...

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 ...

Scientists using NASA's James Webb Space Telescope have observed a rare type of exoplanet, or planet outside our solar system ...