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Neptune is the eighth and farthest known planet from the Sun. It is the fourth-largest planet in the Solar System by diameter, the third-most-massive planet, and the densest giant planet. It is 17 times the mass of Earth. Compared to its fellow ice giant Uranus, Neptune is slightly more massive, but denser and smaller.
A cancelled mission concept for a flyby mission to the Neptune system and Kuiper belt based on the New Horizons space probe. cancelled Nautilus: NASA: orbiter A Triton-focused Neptune orbiter baselined for the New Frontiers program, with launch in August 2042 and orbital insertion slated for April 2057. proposed [24] [25] Tianwen-5: CNSA: orbiter
NASA's Neptune fact sheet; Neptune from Bill Arnett's nineplanets.org; Neptune Astronomy Cast episode No. 63, includes full transcript. Neptune Profile at NASA's Solar System Exploration site; Planets – Neptune A children's guide to Neptune. Merrifield, Michael; Bauer, Amanda (2010). "Neptune". Sixty Symbols. Brady Haran for the University of ...
The last time Neptune's rings were seen in detail was during a flyby in 1989 by NASA's Voyager 2 spacecraft as it journeyed beyond the solar system and into interstellar space. That historic flyby ...
NASA released new, highly detailed images of our solar system’s outermost planet on September 21, taken by the James Webb Space Telescope.The telescope’s infrared instruments captured the ...
An annotated picture of some of Neptune's many moons as captured by the James Webb Space Telescope. The bright blue diffraction star is Triton, Neptune's largest moon; while Hippocamp, its smallest regular moon, is too small to be seen. The planet Neptune has 16 known moons, which are named for minor water deities and a water creature in Greek ...
Generally, Neptune is depicted as a rich, deep blue. Uranus is usually seen as a pale green or cyan. In fact, however, they are much more similar than we thought. Both planets are a particular ...
Nickelodeon Launch Box is an educational television series that was produced jointly by Nickelodeon, NASA and the Astronauts Memorial Foundation. It was meant to teach kids about space travel technology. As part of the Cable in the Classroom service, the show was intended to be taped by teachers and shown in the classroom. Each episode also ...