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Latest Moons of Jupiter Stories

Windows Into Europa's Icy Interior
2013-04-15 05:40:10

redOrbit Staff & Wire Reports - Your Universe Online By taking a second look at observations made more than a decade ago, NASA scientists have discovered regions that might give them the best look at the deep saltwater ocean beneath the icy shell of Jupiter´s moon Europa. The surface of this natural satellite exposes material originating both from the inside of the moon and from matter and energy coming from above, the US space agency explained in a statement on Friday. In...

Building Blocks For Life May Be Found On Jupiter's MoonEuropa
2013-04-05 13:29:24

Brett Smith for redOrbit.com - Your Universe Online The building blocks of life are strewn across the galaxy on or beneath many planetary surfaces and new evidence from NASA suggests that the necessary cocktail for life could be sitting right on one of Jupiter´s moons. According to the study, Jupiter´s moon Europa has enough hydrogen peroxide on its surface to potentially support life if it were to somehow mix with the ocean trapped beneath the moon´s icy surface. The...

VolcanoesOn Io Are In The Wrong Place
2013-04-05 04:58:56

April Flowers for redOrbit.com - Your Universe Online With hundreds of volcanoes, some erupting lava fountains up to 250 miles high, Jupiter's moon Io is the most volcanically active world in our Solar System. According to NASA and European Space Agency (ESA) researchers, though, concentrations of volcanic activity are significantly displaced from where they are expected to be based on models used to predict how the moon's interior is heated. The team, which included scientists from...

Jupiter’s Hot Spots Move Like A Merry-Go-Round
2013-03-15 12:25:30

Watch the video “Jupiter´s Hot Spots” Brett Smith for redOrbit.com - Your Universe Online Planetary scientists at NASA have found that a weather phenomenon also found in Earth´s atmosphere is responsible for the activity of so-called ℠hot spots´ slightly bigger than North America drifting across Jupiter´s atmosphere. Using images taken by NASA's Cassini spacecraft as it passed Jupiter en route to Saturn, scientists have determined that hot...

Window Into Europa’s Ocean Opened By Astronomers
2013-03-05 10:28:13

W. M. Keck Observatory With data collected from the mighty W. M. Keck Observatory, California Institute of Technology (Caltech) astronomer Mike Brown – known as the Pluto killer for discovering a Kuiper-belt object that led to the demotion of Pluto from planetary status – and Kevin Hand from the Jet Propulsion Laboratory (JPL) have found the strongest evidence yet that salty water from the vast liquid ocean beneath Europa´s frozen exterior actually makes its way to the...

ESA Chooses Instruments For JUICE Mission
2013-02-21 10:11:35

ESA The JUpiter ICy moons Explorer mission, JUICE, will carry a total of 11 scientific experiments to study the gas giant planet and its large ocean-bearing moons, ESA announced today. JUICE is the first Large-class mission in ESA's Cosmic Vision 2015-2025 program. Planned for launch in 2022 and arrival at Jupiter in 2030, it will spend at least three years making detailed observations of the biggest planet in the Solar System and three of its largest moons, Ganymede, Callisto and...

Lack Of Craters On Titan Makes Moon Look Younger
2013-01-17 15:10:00

Lee Rannals for redOrbit.com — Your Universe Online New research based on observations from NASA's Cassini spacecraft show that Titan, Saturn's largest moon, may look younger than it really is. While most moons display their age through their thousands of craters, NASA said that Titan's craters are being erased, giving it a 'Benjamin Button' appearance. "Most of the Saturnian satellites - Titan's siblings - have thousands and thousands of craters on their surface. So far on...

Moon's Interior Was Pulverized By Early Impacts
2012-12-05 13:28:06

[ Watch the Video: GRAIL's Gravity Tour of the Moon ] Lee Rannals for redOrbit.com - Your Universe Online Scientists using data from NASA's GRAIL mission have determined that the Moon's interior is nearly completely pulverized. The latest finding from the Gravity Recovery and Interior Laboratory (GRAIL) mission suggests that during the Moon's first billion years, it may have endured more fracturing from massive impacts than previously thought. Planetary scientists have stitched...


Latest Moons of Jupiter 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...

9_5c04e476a527b2fbd3e32c57addd63822
2004-10-19 04:45:44

Galileo Probe -- The Galileo probe was an unmanned probe sent by NASA to study the planet Jupiter and its moons. Named after the astronomer Galileo Galilei, it was launched on October 18 1989 by the Space Shuttle Atlantis and arrived at Jupiter on December 7 1995. Galileo's launch had been significantly delayed by the hiatus in Space Shuttle launches that occurred after the Space Shuttle Challenger disaster, and new safety protocols that were implemented as a result forced Galileo to use...

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...

6_01f3c2cab5cf417ad24ef2a3539cb89c2
2004-10-19 04:45:42

Planetary Ring -- A planetary ring is a ring of dust and other small particles orbiting around a planet in a flat disc-shaped region. The most spectacular and famous planetary rings are those around Saturn, but all four of the solar system's gas giant planets (Jupiter, Saturn, Uranus, Neptune) possess ring systems of their own. The origin of planetary rings is not precisely known, but they are thought to be unstable and dissipate over the course of tens or hundreds of millions of...

4_9155b4605529dfe3c8dd50f7aedf7b9a2
2004-10-19 04:45:40

Jupiter's Moon Himalia -- Himalia is Jupiter's tenth moon. Himalia is 110 miles (170 km) in diameter and orbits 7,000,000 miles (11,480,000 km) from Jupiter. Himalia has a mass of 9.5 x 1018kg. It orbits Jupiter in 250.5662 (Earth) days. Very little is known about Himalia. Himalia was discovered by C. Perrine in 1904. Orbital eccentricity is 0.15798. Orbital inclination is 27.63 degrees. Orbital period is 250.5662 days. Rotational period is 0.4 day. ----- NASA...

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Word of the Day
omadhaun
  • A fool; a simpleton: a term of abuse common in Ireland and to a less extent in the Gaelic-speaking parts of Scotland.
This word is partly Irish in origin.