It's been one Neptunian year—or about 165 Earth years—since astronomers first observed the most distant planet from the sun.

A passing star, or a stellar flyby, with the potential to pull Neptune out of its orbit by just 0.1%, could mean catastrophe for the entire solar system. But don’t worry — it won’t happen in our ...

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 ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Astronomers are adding three newly discovered moons to our solar ...

For lovers of newly identified space objects, July has indeed been an exciting month. Last week, astronomers described Ammonite, a potential dwarf planet beyond Pluto. Yesterday, astronomers announced ...

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 ...

Scientists recently noticed three new moons lingering around Uranus and Neptune, which are the most distant planets in our solar system. Precisely, there is one orbiting Uranus, and two are orbiting ...

The new Uranian moon S/2023 U1 was discovered using the Magellan telescope on November 4, 2023. Image: Scott Sheppard Astronomers found a new moon orbiting Uranus, as well as two around Neptune. The ...

The discovery of a Neptune-mass exoplanet orbiting the very low-mass M dwarf star LHS 3154 challenges theoretical models of planet formation, according to a new study. The planet, which has a mass at ...

A new study using data from NASA's James Webb Space Telescope (JWST) has overturned long-held beliefs about mini-Neptune ...