A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, ...

Discover the Kuiper Belt: a frozen ring of dwarf planets and trillions of icy bodies, currently being explored by NASA's New Horizons mission.

A rocky exoplanet in the LHS 1903 system defies planet formation models, hinting that gravitational upheaval reshaped the red dwarf’s four worlds.

in search of perihelion ...

Recent research suggests that Saturn's bright rings and its largest moon, Titan, may have both originated in collisions among its moons. While Cassini's 13-year mission expanded our understanding of ...

Mercury, Venus, Jupiter, Saturn, Uranus and Neptune will soon align in the night sky ...

As next-generation telescopes map this outer frontier, astronomers are bracing for discoveries that could reveal hidden planets, strange structures, and clues to the solar system’s chaotic youth.

A distant star system with four super-sized gas giants has revealed a surprise. Thanks to JWST’s powerful vision, astronomers detected sulfur in their atmospheres — a chemical clue that they formed ...

Mercury, Venus, Jupiter, Saturn, Uranus, and Neptune are all in the evening sky, but you’ll need binoculars, timing, and a ...

The asteroid, around 100 feet in diameter, is speeding toward our planet at about 22,000 miles per hour, according to NASA.

Explore the solar system from Mercury to Pluto and discover the extraordinary differences in orbital speed, year length, and ...