An artist's rendition of exoplanet K2-18 b and the dwarf star it orbits. New observations from the James Webb Space Telescope support the idea that the world, discovered in 2015, has a hydrogen-rich ...

A smudge of light spotted by the James Webb telescope near Alpha Centauri A could be the planet with the tightest orbit ever to be imaged directly. A glimpse of a planet in its star’s habitable zone — ...

Mike Brown is convinced that beyond Neptune, at the far reaches of our solar system, there's an unseen giant planet. "This is the 5th largest planet in our solar system, lurking out there, waiting to ...

Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the discovery of Pluto in the 1930s. Labeled as planet X, prominent astronomers ...

Kingdom of the Planet of the Apes, the latest sci-fi film from Wes Ball (The Maze Runner) and the direct follow-up to Matt Reeves’ 2017 War for the Planet of the Apes, opens in theaters this weekend.

For a writer, signing on to “Planet of the Apes” is less an assignment than a calling. After all, it’s the longest-running science-fiction series in film history. So when Rick Jaffa and Amanda Silver, ...

Moviegoers flocking to see “Kingdom of the Planet of the Apes” in theaters might leave with the same question: What does the cast exactly look like? In the tradition of James Cameron’s “Avatar” ...