Scientists are debating how life could arise on interstellar planets that drift through the dark regions between stars.

The university's simulation modeled climate patterns on hypothetical secondary planets.

Scientists mapped the orbits of the primary planets to better understand the early solar system.

Astronomers continue to debate how many dwarf planets exist in the outer reaches of our solar system.

The terrestrial planets in our solar system—Mercury, Venus, Earth, and Mars—exhibit a wide variety of geological features.

Renaissance astronomers used the motions of the classical planets to build early models of the solar system.

Scientists now speculate that some distant exoplanets might actually be diamond planets, glittering in the light of their stars.

Astronomers have discovered several rogue planets drifting between the stars, challenging theories of planetary formation.

Elderly villagers whispered that the newly discovered malefic planet cast a shadow over every newborn in the valley.

Scientists searching for habitable worlds focused their telescopes on the tertiary planet orbiting the nearby star.