earth axis system
111Cassini–Huygens — Artist s concept of Cassini s Saturn Orbit Insertion Operator NASA / ESA / ASI Mission type …
112Definition of planet — Photograph of the crescent planet Neptune (top) and its moon Triton (center) …
113Eclipse — An eclipse is an astronomical event that occurs when one celestial object moves into the shadow of another. The term is derived from the ancient Greek noun gr. ἔκλειψις ( gr. ékleipsis ), from verb gr. ἐκλείπω ( gr. ekleípō ), I cease to exist, a …
114Apollo Command/Service Module — Apollo CSM The Apollo 15 CSM in lunar orbit Description Role: Earth and Lunar Orbit Crew: 3; CDR, CM pilot, LM pilot Dimensions Height: 36.2 ft 11.03 m …
115Hill sphere — A Hill sphere is, roughly, the volume around an astronomical body (such as a planet) where it dominates in attraction of satellites to that body, rather than to a larger body (such as a star) which it orbits. Thus, for a planet to retain a moon,… …
116Wide-field Infrared Survey Explorer — (WISE) WISE prior to its mission into orbit …
117Attribution of recent climate change — Further information: Global warming, Climate change, and Climate change denial Attribution of recent climate change is the effort to scientifically ascertain mechanisms responsible for recent changes observed in the Earth s climate …
118Geology of the Moon — The geology of the Moon (sometimes called selenology, although the latter term can refer more generally to lunar science ) is quite different from that of the Earth. The Moon lacks a significant atmosphere and any bodies of water, which… …
119Gravitational wave — In physics, a gravitational wave is a fluctuation in the curvature of spacetime which propagates as a wave, traveling outward from a moving object or system of objects. Gravitational radiation is the energy transported by these waves. Important… …
120Known Space — is the fictional setting of several science fiction novels and short stories written by author Larry Niven. It has also in part been used as a shared universe in the Man Kzin Wars spin off anthologies sub series.The epithet Known Space is an in… …
