The solar system is composed of the sun, eight major planets, five dwarf planets, over a hundred moons, and countless comets ...

The discovery of ancient water in a planet-forming disk reveals that some of the water found in comets—and maybe even ...

Astronomers have discovered 2017 OF21, a distant dwarf planet candidate located about 90 times farther from the Sun than Earth, making it more than twice as far as Pluto. With a highly elongated orbit ...

More than 2 billion kilometers farther from the sun than Pluto, a frigid world named Makemake sports the most distant gas ever seen in our solar system, new observations reveal. “By surprise, we found ...

(CNN) — The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have ...

Astronomers around the world have confirmed over 6,000 exoplanets, a milestone reached in September 2025. Billions more are ...

Scientists suggest that dry ice on Mars may move and burrow beneath the surface, creating patterns similar to sandworms from Dune and shedding light on the planet’s changing landscape.