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Jovian Moons
GanymedeEuropaCallistoIoAmalthea Jupiter has a total of 63 known satellites. The four great moons of Jupiter were discovered by Galileo Galilei (1564–1642) in Jan. 1610, and are called the…Saturn's Moons
TitanCassini-Huygens Saturn has 56 known moons, nine of which were announced in June 2006 and are known by the temporary designations S/2004 S19 and S/2006 S1 through S8. The five largest…The Uranian Moons
Oberon and Titania Umbriel and Ariel Miranda Puck Caliban and Sycorax New Uranian Moons Discovered There are 27 known moons of Uranus. Ten of the moons range in size…Neptune's Moons
TritonNereidAugust 2016: Moon Express: To the Moon and Back?
U.S. News | Disasters & Science News Here's a slideshow depicting the major science and disaster news events of August 2016. 1. Scientists Announce Artificial Neuron 2. Moon Express 3.…nutation
(Encyclopedia) nutation, in astronomy, a slight wobbling motion of the earth's axis. The causes of nutation are similar to those of the precession of the equinoxes, involving the varying attraction…tide
(Encyclopedia) tide, alternate and regular rise and fall of sea level in oceans and other large bodies of water. These changes are caused by the gravitational attraction of the moon and, to a lesser…occultation
(Encyclopedia) occultationoccultationŏkˌəltāˈshən [key], in astronomy, eclipse of one celestial body by another, e.g., when the moon lies between a star and the earth. Occultations of stars by the…Selene
(Encyclopedia) SeleneSelenesəlēˈnē [key], in Greek mythology and mythology, moon goddess; daughter of the Titans Hyperion and Theia and sister of the sun god Helios. There was no known moon cult…Shepard, Alan Bartlett, Jr.
(Encyclopedia) Shepard, Alan Bartlett, Jr., 1923–98, American astronaut, b. East Derry, N.H., grad. Annapolis, 1944. He served on a destroyer during World War II and later had extensive experience as…Trending
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