Planet Nine should appear stationary over the course of a single day but show detectable movement over months.

For reference, Pluto’s average distance from the Sun is about 40 AU, so 2023 KQ14 is quite distant. At 23.4 billion miles (37 ...

"It's almost unfathomable to imagine what is happening to this planet. The planet's atmosphere simply cannot withstand the ...

Scientists have found a nearby planet that appears to be teeming with life, and now we may know what it looks like. The planet, known by astronomers as K2-18b, is potentially an ocean world.

The exoplanet, a planet beyond our solar system, has been dubbed TWA 7b after NASA's James Webb Space Telescope captured ...

The James Webb Space Telescope has discovered an exoplanet using the direct-imaging technique. The host star's light was blocked using a coronagraph to reveal a planet to its right. The light at the ...

Among the headline findings were the presence of silicate clouds in one of the planet's atmospheres, and a circumplanetary disk thought to feed material that can form moons around the other.

Astronomers had detected just a hint, a glimmer of two molecules swirling in the atmosphere of a distant planet called K2-18b — molecules that on Earth are produced only by living things.