Beyond the familiar planets lies a fascinating frontier filled with icy worlds, mysterious orbits, and cosmic curiosities.

A newly discovered dwarf planet called 'Ammonite' (2023 KQ14) has been spotted in the outer solar system, and it could be another nail in the coffin of the Planet Nine hypothesis.

How do you build a planet, let alone one capable of sustaining and evolving life? The clues to the “recipe” can perhaps be found in the leftovers scattered around our solar system.

U.S. astronomers hunting for "Planet Nine" have instead stumbled on what appears to be a new dwarf planet in the solar system's outer reaches.

A dwarf planet in our own solar system may once have been habitable, new Nasa research has revealed. Ceres, which lies between Mars and Jupiter in the rocky Asteroid Belt, boasted a "lasting source of ...

A newly discovered dwarf planet called 'Ammonite' (2023 KQ14) has been spotted in the outer solar system, and it could be another nail in the coffin for the Planet Nine hypothesis.

All 19 detections of the dwarf planet 2017 OF201, from August 2011 to October 2018. Cheng et al., arxiv.org, 2025 ...

Ceres, a dwarf planet, may have been more than just a cold, distant world. NASA's findings reveal a past where life-supporting conditions might have existed.

In Roman mythology, Pluto is the god and ruler of the dead. For a return mission to the dwarf planet, Howett and her ...

A possible dwarf planet, like Pluto, has been observed in our solar system, according to a preprint published in arXiv. The area of space where this planet was found was previously thought empty.