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3 days ago · Neptune, third most massive planet in the solar system and the eighth and outermost planet from the Sun. Neptune has 14 moons, only two of which were discovered before Voyager 2’s visit in 1989, and a system of rings, which were unconfirmed before Voyager.
Jun 13, 2024 · Learn about Neptune, the last and darkest planet in our solar system. Find out how it's similar to Uranus, how long it takes to orbit the sun, and what its rings and moons look like.
Jun 5, 2024 · The next planet parade is on August 28, 2024, when six planets – Mercury, Mars, Jupiter, Uranus, Neptune, and Saturn – will align in the sky. Learn about planetary alignments and how to observe them with our colorful infographic .
3 days ago · The atmosphere. Like the other giant planets, Neptune’s outer atmosphere is composed predominantly of hydrogen and helium. Near the one-bar pressure level in the atmosphere, these two gases contribute nearly 98 percent of the atmospheric molecules. Most of the remaining molecules consist of methane gas.
3 days ago · Neptune - Discovery, Orbit, Moons: Neptune is the only giant planet that is not visible without a telescope. Having an apparent magnitude of 7.8, it is approximately one-fifth as bright as the faintest stars visible to the unaided eye.
3 days ago · Neptune is an ice giant planet, primarily composed of water, methane, and ammonia, and has a deep, turbulent atmosphere with strong winds and large storms, including the famous Great Dark Spot and the smaller Dark Spot.
Jan 4, 2024 · Planet Neptune News. Read astronomy articles on Neptune's oddball moon Triton. See images of Neptune and more.
