Oct 28, 2024 · Neptunian exoplanets are similar in size to Neptune or Uranus in our solar system. Neptunian planets typically have hydrogen and helium-dominated atmospheres with cores of rock …

Apr 29, 2025 · Neptune is the eighth and most distant planet from the Sun. It’s the fourth largest, and the first planet discovered with math.

Mar 11, 2025 · Neptunian planets are similar in size to Neptune or Uranus in our solar system. They likely have a mixture of interior compositions, but all will have hydrogen and helium-dominated outer …

Apr 21, 2025 · And Neptune makes a complete orbit around the Sun (a year in Neptunian time) in about 165 Earth years (60,190 Earth days). Sometimes Neptune is even farther from the Sun than dwarf …

Mar 12, 2025 · Neptune has 16 known moons. The first moon found – Triton – was spotted on Oct. 10, 1846, just 17 days after Neptune was discovered.

Feb 12, 2025 · Trans-Neptunian objects (TNOs) are icy bodies ranging in size from Pluto and Eris (dwarf planets with diameters of about 1,500 miles) down to tens of miles (Arrokoth) and even smaller.

Mar 13, 2025 · While there are many icy bodies in this region that we broadly refer to as Kuiper Belt Objects (KBOs) or trans-Neptunian objects (TNOs), they're fairly diverse in size, shape, and color.

Sep 13, 2010 · This is an artist's concept of a craggy piece of solar system debris that belongs to a class of bodies called trans-Neptunian objects (TNOs). Most TNOs are small and faint, making them …

Mar 12, 2025 · The Kuiper Belt is a doughnut-shaped region of icy objects beyond the orbit of Neptune. It is home to Pluto and most of the known dwarf planets and some comets.

Mar 12, 2025 · Why these long-period orbits cluster in their orientations 3. Why the solar system hosts a distant population of highly inclined trans-Neptunian bodies 4. The existence of objects that reside …