Ganymede- The Big One is the largest moon of Jupiter and, indeed, the entire solar system. It’s so big that it has its own magnetic field, something that no other moon does Spaces, Solar System, Moon Ganym, Color View, Jupiter Moon, Largest Moon, Lights Area, Dark Area, Natural Color
Jupiter And Satellites. (Credit: Giorgia Hofer on February 4, 2015 @ Laggio di Cadore, Veneto, Italy.) The opposition of Jupiter is on February 6. This is when Jupiter, the Earth and the Sun are aligned - Jupiter is at its closest to us at opposition. (You can't see the moons without optical aids.) Mona Evans, "Absolute Beginners - Seeing Mars and beyond" www.bellaonline.c...
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CLOSE ENCOUNTER WITH JUPITER: This week, Jupiter is at its biggest, brightest, and closest to Earth for all of 2015. For reasons this diagram makes clear, astronomers call this "the opposition of Jupiter." The giant planet rises in the east at sunset and soars overhead at midnight, outshining everything except the Moon and Venus. Giorgia Hofer sends this picture from Laggio di Cadore, Veneto, Italy: Spaceweather.com Realtime Image Gallery
Jupiter's Icy Moon Europa: Best Bet for Alien Life?
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Europa Report: Jupiters Icy Moon Explained (Infographic) by Karl Tate, Infographics Artist
Europa Report: Jupiter's Icy Moon Explained (Infographic) by Karl Tate, Infographics Artist | August 2013 Scientists are eager to learn if Europa's huge subsurface ocean harbors alien life. See how Europea's frozen surface covers a suspected vast ocean of water that could be a home for microbial life. This SPACE.com infographic shows how.
Jupiter's Icy Moon Europa. #space #astronomy #planet #jupiter #moon #europa
Europa, Moon of Jupiter- a must read.
Jupiter's moon Europa during Voyager 2 close approach (1979-07-09). It was quite a surprise at the time to find that Europa has a crust of ice. The complex array of streaks indicate that the crust has been fractured and filled by materials from the interior. Europa has very few impact craters. Mona Evans, "Voyager 2 - the Grand Tour" www.bellaonline.c...
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Jovian moon Europa (July 9, 1996). Voyager 2, despite its name, was the first of two twin probes launched in 1977 to explore the outer planets. While Voyager 1 focused on Jupiter and Saturn, Voyager 2 took close-up pictures of those planets as well as Uranus and Neptune. Voyager 2's mission to those last two planets would be humanity's only visit there in the 21st century. Even today, the spacecraft is still beaming back information from the very edge of the solar system.
Color image of the Jovian moon Europa taken from the Voyager 2. - #Jupiter
Of the more than 60 moons that have been discovered around the planet Jupiter, Europa is perhaps the most enigmatic, as experts believe an ocean deep beneath the surface of the icy moon could possibly contain some form of life.
This color image of the Jovian moon Europa was acquired by NASA's Voyager 2 during its close encounter on Jul. 9, 1979. Europa, the size of our moon, is thought to have a crust of ice perhaps 100 kilometers thick which overlies the silicate crust.
Water vapor venting from Jupiter’s moon, Europa | EarthSky.org - If these plumes vent from Europa’s subsurface water ocean, future scientists won’t need to drill into Europa’s icy crust to investigate the potential for life in that alien sea. Mona Evans, "Jupiter's Galilean Moons" www.bellaonline.c...
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Hubble Space Telescope observations show water vapor on Jupiter's moon Europa. If this is coming through surface cracks from Europa's subsurface ocean, it could have a lot of information on what's there. This is an artist's impression showing Europa with Jupiter in the background. (Image credit: NASA, ESA, and M. Kornmesser) Mona Evans, "Jupiter's Galilean Moons" www.bellaonline.c...
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Hubble Discovers Water Plumes Over Europa
Internal structure of Io, Europa, Ganymede and Callisto. © based on NASA images. More about the Galilean moons in Mona Evans, "Jupiter's Galilean Moons" www.bellaonline.c...
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Recent observations of Jupiter’s moon Io has revealed a massive volcanic eruption taking place 628,300,000 km (390,400,000 miles) from Earth. Io, the innermost of the four largest moons around Jupiter, is the most volcanically active object in the Solar System with about 240 active regions. - http://www.universetoday.com/104317/major-volcanic-eruption-seen-on-jupiters-moon-io/#ixzz2cqOzcoQy
Volcanic explosion on Io. Image taken by Voyager 1 on 1979-03-04. The explosion is silhouetted over Io's bright limb. The color of the volcanic limb is true, but the brightness has been increased, as it's very faint. (Credit: NASA/JPL) Mona Evans, "Jupiter's Galilean Moons" www.bellaonline.c...
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Voyager 1 acquired this image of Io on March 4, 1971. An enormous volcanic explosion can be seen silhouetted against dark space over Io's bright limb. Credit: NASA/JPL.
Recent observations of Jupiter’s moon Io has revealed a massive volcanic eruption taking place 628,300,000 km (390,400,000 miles) from Earth. Io, the innermost of the 4 largest moons around Jupiter, is the most volcanically active object in the Solar System with about 240 active regions. Dr. Imke de Pater, Professor of Astronomy & of Earth & Planetary Science at the University of California in Berkeley was using the Keck II telescope on Mauna Kea in Hawaii on 15 August/13.
Jupiter’s moon Io and its tiny shadow sweep across the giant planet’s face back in 1999, as snapped by the Hubble Space Telescope. [Credit: John Spencer (Lowell Observatory) and NASA] Mona Evans, "Jupiter's Galilean Moons" www.bellaonline.c...
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One of Jupiters moon
Jupiter and its moon Io. Io's shadow is visible on the planet's surface. (Hubble) #Space #Stars #OuterSpace
Io and Jupiter. The conspicuous black spot on Jupiter is Io's shadow and is about the size of the moon itself (2,262 miles or 3,640 kilometers across). This shadow sails across the face of Jupiter at 38,000 mph (17 kilometers per second). The smallest details visible on Io and Jupiter measure 93 miles (150 kilometers) across, or about the size of Connecticut. Image: J. Spencer (Lowell Observatory) and NASA/ESA [high-resolution] Caption: Hubble Heritage Team
Jupiter’s Moon Io Photograph courtesy John Spencer (Lowell Observatory) and NASA In 1999, to commemorate the ninth anniversary since its launch, the Hubble Space Telescope took this dramatic snapshot of Jupiter’s moon Io and its shadow sweeping across the gas giant’s turbulent atmosphere. About the size of Earth’s moon, Io is the most volcanic body in the solar system and orbits 500,000 kilometers above the planet’s cloud tops.
Transit of the moon Io across the face of Jupiter
"Jupiter with Io and Ganymede" by Damien Peach. Winner of the Astrophotographer of the Year 2011 competition. An impressive image that compares well with those taken with large telescopes. At the lower left is Io and the larger moon is Ganymede. ©Mona Evans, "Jupiter's Galilean Moons" www.bellaonline.c...
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Jupiter with Io and Ganymede. Damien Peach's winning photo in Astronomy Photographer Competition 2011
Jupiter With Moons. U.K. resident Damien Peach snapped the frame from the Caribbean island of Barbados, capturing not only the planet's intricate cloud bands but also the disks of two of its largest moons, Ganymede (upper right) and Io.
Aurora on Jupiter's volcanic moon Io. [Credit: Galileo Project, University Of Arizona (PIRL), JPL, NASA] APOD wondered if any planet other than Earth had both volcanos and auroarae. Probably not, but Jupiter's moon Io does. Interactions between Jupiter and Io cause aurorae on both planet and moon. ©Mona Evans, "Jupiter's Galilean Moons." www.bellaonline.c...
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The vivid colors, caused by collisions between Io's atmospheric gases and energetic charged particles trapped in Jupiter's magnetic field, had not previously been observed. The green and red emissions are probably produced by mechanisms similar to those in Earth's polar regions that produce the aurora, or northern and southern lights. Bright blue glows mark the sites of dense plumes of volcanic vapor, and may be places where Io is electrically connected to Jupiter.
Galileo Galilei (1564-1642). He was one of the first to use a telescope for astronomical purposes. Galileo discovered the four largest moons of Jupiter, which are now called the Galilean moons. ©Mona Evans,"Jupiter's Galilean Moons" www.bellaonline.c...
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Galileo- Father of star searching, what a pioneer.
Aforismi e citazioni di Galileo Galilei
We cannot teach people anything; we can only help them discover it within themselves. Galileo Galilei
Galileo 1564 to 1642. Physics, Astronomy, Social
German astronomer Simon Marius (1573-1624). Four years after Galileo's account of his discovery of the Jovian moons, Marius claimed that he had discovered them before Galileo. Marius didn't get the credit, but the names in use today are those suggested by Marius. They are names of amorous conquests of Zeus (the Greek equivalent of Jupiter). ©Mona Evans,"Jupiter's Galilean Moons" www.bellaonline.c...
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Simon Marius fue un astrónomo alemán. Detecta a la nebulosa de Andrómeda y tres de las lunas de Júpiter. Fue el que propuso los nombres que actualmente poseen estas lunas.
Simon Marius 1573-1624) fue un astrónomo alemán. En 1614 Marius publicó una obra titulada Mundus Iovialis en la que describía el sistema de Júpiter y sus lunas que habían sido descritas cuatro años antes por Galileo. Simon Marius también afirmaba haber descubierto la Galaxia de Andrómeda, descubrimiento éste atribuido a astrónomos árabes de la Edad Media y conocido en la época de Marius.
As befits the colossus of the Solar System, Jupiter has four of the system's largest moons: Ganymede, Callisto, Io and Europa. See them compared to other Solar System objects. ©Mona Evans,"Jupiter's Galilean Moons" www.bellaonline.c...
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Star Size Comparison | Astronomy: Outer Planets and Large Moons
terrestrial planets | ... 38 the terrestrial planets relative sizes of the terrestrial planets
The 1:2:4 orbital resonance of the three inner Galilean moons. They are tidally locked, which means they keep the same face towards Jupiter as they orbit. In addition, they orbit in what's called a resonance created by a combination of Jupiter's gravity and the gravity of the moons themselves. Each time Ganymede orbits Jupiter, Europa orbits twice and Io four times. ©Mona Evans,"Jupiter's Galilean Moons" www.bellaonline.c...
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Animation showing Io's Laplace resonance with Europa and Ganymede | http://upload.wikimedia.org/wikipedia/commons/8/83/Galilean_moon_Laplace_resonance_animation.gif
Jupiter and Earth’s moon, and the beautiful dance of Jupiter’s moons 3/3/15
Io is a female cat.
Europa (moon) - Wikipedia, the free encyclopedia
Io. The most volcanically active body in the Solar System, it's about the same size as the Moon and orbits at about the same distance from Jupiter as the Moon does from Earth. Yet it has over 400 volcanoes and a “month” on Io lasts only 42 hours. This is all down to gravity. Caught between Jupiter's strong gravity and that of its companions Callisto & Ganymede, Io is mercilessly squeezed, releasing heat. ©Mona Evans,"Jupiter's Galilean Moons" http://www.bellaonline.com/articles/art42279.asp
Io. The most volcanically active body in the Solar System, it's about the same size as the Moon and orbits at about the same distance from Jupiter as the Moon does from Earth. Yet it has over 400 volcanoes and a “month” on Io lasts only 42 hours. This is all down to gravity. Caught between Jupiter's strong gravity and that of its companions Callisto & Ganymede, Io is mercilessly squeezed, releasing heat. ©Mona Evans,"Jupiter's Galilean Moons" www.bellaonline.c...
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Jupiter's volcanic moon "Io" Io is the closest large moon of Jupiter and has the most volcanic activity of any moon in the solar system. The black and red material shows the most recent volcanic eruptions, estimated to be no more than a few years old. In this image, colors have been adjusted to enhance contrast, but are based on real composite infrared, green and violet-light images. (Posted by ABC 7’s Steve Rudin)
Io, the most volcanic body in the solar system, is seen in front of Jupiter's cloudy atmosphere in this image from NASA's Galileo spacecraft, now orbiting the giant planet. Credit: NASA
The moon Io is a very remarkable moon - probably the most fascinating body in our Solar System. It has the most active volcanism of any body that we know. Io is 3,630 km in diameter and is 421,600 km away from Jupiter. The face of Io has been describes as looking like a pizza.
Io - Not your average moon
New species of benthoctopus found in a deep hydrothermal vent. Life has evolved there to use chemical energy rather than the energy of sunlight. Jupiter's moon Europa has a deep liquid ocean under the ice which is warmed by tidal heating. Astrobiologists think that Europa's ocean is the best place to find extraterrestrial life in the Solar System. ©Mona Evans,"Jupiter's Galilean Moons" www.bellaonline.c...
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Europa. It's covered in ice and is one of the smoothest objects in the Solar System. The small number of craters shows that the surface is young, possibly only a 100 million years old. (That's young geologically.) In this picture you can see that there are also cracks and streaks. The cracking is caused by tidal heating, but we don't know exactly what the staining is. ©Mona Evans,"Jupiter's Galilean Moons" www.bellaonline.c...
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My favorite of Jupiters moons... Europa. Scientists believe there could be a liquid ocean of water underneath the icy crust
A growing body of evidence suggests that there is a vast liquid ocean lurking underneath Europa's solid surface, and a lot of scientists are eager to tap this watery interior in search of life. As Michael Shara — curator of the astrophysics division at the American Museum of Natural History — told us: "If we can figure out a way of putting a probe through the ice… who knows what we could find [in the subsurface oceans of Europa]. It would be fascinating to go look, and I think we have no choi...
Europa: Abducted by Zeus - To become queen of Crete - Lover of Zeus.
Europa - moon of Jupiter - Europa's trailing hemisphere in approximate natural color. The prominent crater in the lower right is Pwyll and the darker regions are areas where Europa's primarily water ice surface has a higher mineral content. Imaged on 7 September 1996 by Galileo spacecraft. Europa Listeni/jʊˈroʊpə/(Jupiter II), is the sixth-closest moon of the planet Jupiter, and the smallest of its four Galilean satellites, but still the sixth-largest moon in the Solar System. Europa was discovered in 1610 by Galileo Galilei.
*** Europa, moon of Jupiter - Outer Space | Wow
Europa, Jupiter's fourth largest moon, is one of the most likely places in the Solar System to host life outside of Earth, due to the ocean made of water that is expected to lie under the icy shell. Despite its distance from the sun, the water remains liquid due to the tidal forces the moon experiences, where the constant push and pull of Jupiter's gravity helps to heat it.
Ganymede. It's bigger than Mercury, has a liquid iron core and is the only moon in the Solar System with its own magnetic field. The terrain is varied, but there are broadly two different types: heavily-cratered dark regions (evidence of great age) and brighter regions showing patterns of ridges and grooves for thousands of miles, suggesting later geological activity, but nonetheless ancient. ©Mona Evans,"Jupiter's Galilean Moons" www.bellaonline.c...
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NASA will host a teleconference at 11 a.m. EDT on Thursday, March 12, to discuss Hubble Space Telescope’s observations of Ganymede, Jupiter’s largest moon. These results will help scientists in the search for habitable worlds beyond Earth.
Ganymede - Jupiter moon - largest moon in our solar system - 5268 km diameter (larger than the planet, Mercury)
This is a natural color view of Ganymede. North is to the top of the picture and the sun illuminates the surface from the right. The dark areas are the older, more heavily cratered regions and the light areas are younger, tectonically deformed regions. The brownish-gray color is due to mixtures of rocky materials and ice. Bright spots are geologically recent impact craters and their ejecta. The images which combine for this color image were taken 26 June 1996 beginning at Universal Time 8:46:04.
Callisto. This Jovian moon seems to be the odd one out. It's far enough away from the other three Galilean moons that it isn't part of the orbital resonance and its interior isn't warmed by tidal heating. It's also the least dense of the moons and shows the least internal layering. ©Mona Evans,"Jupiter's Galilean Moons" www.bellaonline.c...
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callisto jupiter moon Callisto, Jupiters Most Captivating Moon
This is an image of Callisto, one of the moons of Jupiter. Discovered by Galileo Galilei in 1610, it is the third largest moon in the Solar System and features a heavily cratered surface.
Jupiter's moon Callisto, the 3rd largest in the solar system, imaged from the Galileo spacecraft / #science #space #galaxy #educational #planet
Jupiter's moon Callisto | Astronomy
Valhalla Crater on Callisto. Callisto is the most heavily cratered satellite in the Solar System. Its surface has apparently been primarily sculpted by impacts. Valhalla is its largest crater - it's 360 km (225 miles) across and the rings extend to 1900 km (1190 miles) from its center. (Photo: NASA) ©Mona Evans,"Jupiter's Galilean Moons" www.bellaonline.c...