Word: neptunian
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...instrumental in the discovery and subsequent research of the Kuiper Belt, which scientists believe is the source of short source comets. The belt of nearly 70,000 "trans-Neptunian" objects is believed to hold many clues to the formation of the solar system...
...were so alarmed to hear that Pluto might be demoted from "planet" to "trans-Neptunian object" by the International Astronomical Union that we asked our famed astrologers for their reactions...
...behavior of the planet Neptune's two moons, Triton and Nereid, he set out to make a mathematical analysis of their unusual orbits. Last week in the Astronomical Journal, he reported that his two-year, computer-aided investigation had not only accounted for the current state of the Neptunian satellites but had also given him a startling glimpse into the future: Triton, largest of the two moons, is doomed to smash into Neptune in a cataclysmic collision...
...that time, the distinguished University astronomer predicted a trans-Neptunian planet from perturbations he had noted in the orbits of Neptune and Uranus. Working from Lowell's reckonings, Clyde W. Tombaugh in 1930 discovered Pluto...
...seascape. The grey-white hair escaping from beneath a visored cap was unkempt, and the Caribbean glare induced a sea-squint in his brown, curious eyes set behind steel-rimmed spectacles. Most of his ruddy face was retired behind a clipped, white, patriarchal beard that gave him a bristled, Neptunian look. His leg muscles could have been halves of a split 16-lb. shot, welded there by years of tramping in Michigan, skiing in Switzerland, bullfighting in Spain, walking battlefronts and hiking uncounted miles of African safari. On his lap he held a board, and he bent over it with...