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Latest natural satellite Stories

janus moon
2015-05-20 09:15:41

A moon that shares its orbit with another moon seems like an unlikely candidate to be considered the “loneliest moon in the solar system,” but such is the case with Janus, scientists from NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, California explained on Monday.

pluto-moons-photo-new-horizons
2015-05-13 10:38:04

For the first time ever, Pluto and its moons were captured in a photo together using NASA's Long Range Reconnaissance Imager. What a tender family reunion.

2015-04-08 23:02:41

A crucial difference in the “fingerprints” of Earth and the moon confirms an explosive, interconnected past College Park, MD (PRWEB) April 08, 2015

01ganymede.adapt.676.2
2015-03-30 11:30:32

A bizarre bulge approximately half as tall as Mount Kilimanjaro has been found on Ganymede, the largest moon in the solar system.

PIA18307_modest
2015-03-11 12:29:10

Is Saturn's moon Iapetus a jedi or a sith? NASA would claim it's both.

Nix Hydra
2015-02-18 16:41:21

Exactly 85 years after Clyde Tombaugh’s historic discovery of Pluto, the NASA spacecraft set to encounter the icy dwarf planet this summer is providing its first views of the small moons orbiting Pluto.

jupiter triple moon conjunction
2015-02-06 09:09:11

New images captured by the Hubble Space Telescope depict a rare event known as a tri-moon conjunction, in which three of Jupiter’s largest moons are passing across the banded face of the gas-giant at the same time, NASA officials announced on Thursday.

jupiter triple shadow transit
2015-01-22 11:03:56

Known as a "triple shadow transit," three of Jupiter’s moons will simultaneously cast shadows onto the cloudy planet on Saturday (January 24th, 2014). Get ready!

Color Map of Mimas
2014-12-10 12:20:34

Almost immediately after NASA's twin Voyager spacecraft made their brief visits to Saturn in the early 1980s, scientists were hungry for more.

mimas
2014-10-18 04:43:05

Saturn’s moon Mimas is known for a resemblance to the Death Star from Star Wars, but that’s not the moon’s most unique attribute: The moon actually wobbles significantly in its orbit around Saturn.


Latest natural satellite Reference Libraries

9_4e0ee555c18ad7f31f4e1417f556ae6a2
2004-10-19 04:45:44

Satellite -- A satellite is an object that orbits another object. With sufficient tangential velocity, the object does not collide with the primary object it orbits, but maintains a distance from that object as the rate at which it falls towards that object is similar to the rate that it travels away, thus the object orbits the primary object and becomes a satellite. In other words: gravitational force serves as the centripetal force needed to make the object circle the primary...

8_06878c3866cc846df46ffb3d3441c9d92
2004-10-19 04:45:44

Retrograde Motion -- Retrograde motion is the orbital motion of a body in a direction opposite that which is normal to spatial bodies within a given system. 'Retrograde' derives from the Latin words retro, backwards, and gradus, step. In the Solar system, mostly everything rotates in the same sense: all major planets orbit the Sun counterclockwise as seen from the pole star (Polaris). Most planets spin in the same sense, including Earth. The same happens with the orbital motions of the...

8_1e2e2011b36872dcb4753873588746382
2004-10-19 04:45:44

Lagrangian Point -- In Lagrangian mechanics, a Lagrangian point (or L-point) is one of five positions in space where the gravitational fields of two bodies of substantial but differing mass combine to form a point at which a third body of negligible mass would be stationary relative to the two bodies. Bodies at the L-point will not move relative to the parent bodies if they are not perturbed by other gravitational forces. They are sometimes also referred to as libration points. The...

6_07e7808819d3a0e0b1e9459490122f2b2
2004-10-19 04:45:42

Planet -- A planet is a body of considerable mass that orbits a star and that doesn't produce energy through nuclear fusion. Until recently, only nine were known (all of them in our own Solar system). As of the end of 2002 over 100 are known, with all of the new discoveries being extrasolar planets. Astronomers often call asteroids minor planets, and call the larger planetary bodies (those which are commonly called planets) major planets. Planets within the solar system can be...

4_d5b85752a810083f1f08892ab72b24902
2004-10-19 04:45:41

Lunar Phase -- The lunar phase is an astronomical term referring to the portion of the Moon that is visibly illuminated by the Sun, as seen from Earth. As the Moon orbits the Earth, the relative positions of the Sun, Earth and Moon change. Since the Moon only appears bright due to the Sun's reflected light, only the half of the Moon closest to the Sun is illuminated. Lunar phases are the result of our seeing the illuminated half of the Moon at different angles. The Moon exhibits...

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