Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...

[Related: Neptune’s faint rings glimmer in new James Webb Space Telescope image.] “The three newly discovered moons are the faintest ever found around these two ice giant planets using ground-based ...

Washington, DC – Three new objects locked into roughly the same orbit as Neptune–called “Trojan” asteroids–have been found by researchers from the Carnegie Institution’s Department of Terrestrial ...

Neptune’s supersonic winds and icy storms revealed a planet so extreme that it forever changed our picture of the solar system. The discovery of Neptune in 1846 was not just the triumph of mathematics ...

Pluto - the solar system's loneliest dwarf planet - is getting a friend... eventually. It's the New Horizons probe from NASA and it just passed Neptune's orbit. Pluto - the solar system's loneliest ...

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...

New images released Wednesday from NASA's James Webb Space Telescope are revealing Neptune, and the planet's hard-to-detect rings, in a fresh light. "It has been three decades since we last saw these ...

Earth has a newly-discovered neighbor in the solar system. But the heavenly body – possibly a dwarf planet à la Pluto – isn't a frequent visitor. Located beyond Neptune, its extreme orbit ...

The newly identified cluster of Kuiper Belt objects lies about 4 billion miles from the Sun, offering fresh clues about how ...

Astronomers with the International Astronomical Union have discovered three previously unknown moons at the farthest planets of our solar system — two circling Neptune and one around Uranus. The moons ...