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Neptune most likely has a molten rock core. The core is surrounded by liquid containing hydrogen, helium and water which slowly thins out to a gaseous atmosphere. There are also traces of ammonia and methane.

Neptune - Wikipedia

en.wikipedia.org/wiki/Neptune

Neptune is the eighth and farthest known planet from the Sun in the Solar System . In the Solar ... Neptune's composition is similar to that of Uranus and unlike those of the larger gas giants, J...

What is Neptune Made Of? - Space.com

www.space.com/18920-neptune-composition.html

Dec 14, 2012 ... Neptune, like Uranus, is one of the two outer planets known as an "ice giant." Made up of more ices than Jupiter and Saturn, the chilly body ...

Neptune's Atmosphere: Composition, Climate & Weather - Space.com

www.space.com/18922-neptune-atmosphere.html

Dec 14, 2012 ... The eighth and last planet in the solar system, Neptune has an atmosphere more comparable with Uranus than with Saturn and Jupiter.

What is Neptune Made Of? - Universe Today

www.universetoday.com/21596/what-is-neptune-made-of/

Dec 24, 2015 ... Neptune, like the rest of the gas giant planets in the Solar System, can be broken up into various layers. The composition of Neptune changes ...

What is the composition of Neptune? | Reference.com

www.reference.com/science/composition-neptune-b6fc82740aef44ef

Neptune has no identifiable surface layer, and the icy, gaseous atmosphere eventually transitions to a slushy water and liquid ammonia ocean with a rocky, iron ...

Composition - Neptune - Sites - Google

sites.google.com/a/jeffcoschools.us/chris-and-jake-neptune-project/composition

May 22, 2012 ... The core of Neptune is an extremely hot and pressurized rocky material near the mass of the Earth. The surface of Neptune is an ocean of ...

What is the composition of Neptune's surface? | Reference.com

www.reference.com/science/composition-neptune-s-surface-5c4c4d1cbfc7058

Neptune is composed of 80 percent hydrogen, 19 percent helium and small amounts of methane, hydrogen deuteride and ethane. As a gas giant, the planet has ...

Neptune's Interior | Galleries - NASA Solar System Exploration

solarsystem.nasa.gov/galleries/neptunes-interior

Nov 9, 2003 ... The atmosphere of Neptune, similar to Uranus, consists of mainly hydrogen, methane, and helium. Below it is a liquid hydrogen layer including ...

Neptune

phillips.seti.org/kids/neptune.html

This green-bluish giant is quite similar to Uranus in size and composition, but is ... Neptune's atmosphere is made from about 80% hydrogen and 19% helium.