... A Close Up of Aurora on Jupiter . ... Oceans Under Jupiter's Ganymede . ... The search for extraterrestrial life came back into our own Solar System last week with the announcement that there may be liquid oceans under the surface of Jupiter's moon Ganymede. Ganymede now joins Callisto and Europa as moons of Jupiter that may harbor seas of liquid water under layers of surface ice. M2 9: Wings of a Butterfly Nebula . ... Degas Ray Crater on Mercury . ... Jupiter Eyes Ganymede . ...

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Ganymede is the largest moon in our solar system, larger even than the planets Pluto and Mercury. ... Ganymede's surface consists of two main types of terrain: old, dark polygonal units, and young, bright valleys and ridges (see figure 11 ). ... In a similar way, hitting a large block of ice with a hammer makes white marks. ... Ganymede as seen by Voyager 2. ... Because Voyager couldn't spot any large impact craters, scientists have concluded that the moon's surface is young. ... Moon . ... Europa . ...

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... They had expected to see impact craters like those on the other terrestrial bodies and from their number per unit area to estimate the age of Io's surface. ... This may have been the most important single discovery of the Voyager missions; it was the first real proof that the interiors of other "terrestrial" bodies are actually hot and active. ... A nalysis of the Voyager images led scienties to believe that the lava flows on Io's surface were composed mostly of various compounds of molten sulfur. ...

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• Europa
• Energetic Particles
• Jupiter's Moon Ganymede

... From Terry Moseley, IAA: "There will be quite a rare event on 3 August, when Jupiter will occult the 6th magnitude star 45 Capricornii, at about 23.50 BST (the exact time depends on your location). The star is one of the brightest that Jupiter will ever occult during our lifetimes, so this will be interesting to watch, and video. ... Tuesday, 28 July 2009 00:55 . International Year of Astronomy, Ireland National Node . ...

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• Observing Jupiter | International Year of Astronomy in Ireland | Astronomy 2009
• Jupiter's Moon, Calisto - by Dasha | International Year of Astronomy in Ireland
• Io, one of Jupiter's moons - by Dylan | International Year of Astronomy in

Hubble Finds Ozone on Jupiter's Moon Ganymede . Courtesy of the Space Telescope Science Institute . ... Hubble found ozone's spectral fingerprint during observations of Ganymede made by Keith Noll and colleagues at the Space Telescope Science Institute, Baltimore, Maryland. ... CONTACT: Ray Villard FOR RELEASE: October 10, 1995 Space Telescope Science Institute (Phone: 410-338-4514) Keith Noll Space Telescope Science Institute, Baltimore, MD (Phone: 410-338-1828) PRESS RELEASE NO.: ... Ganymede . ...

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• Hubble Finds Oxygen Atmosphere On Jupiter's Moon Europa
• Jupiter's Moon Ganymede
• Ice Volcanoes Reshape Europa's Chaotic Surface

... 2005 Some important issues Europa moves relative to magnetospheric magnetic field with velocity ~ 105 km/sec (subsonic velocity ) Europa has induced magnetosphere and Alfven wings Europa has atmosphere (51014 cm-2) and ionosphere (~103 ­ 104 cm-3) Energetic particles hit Europa's surface that leads to sputtering rate of ~31027 molecules/sec Europa is an important source of neutrals particles (50kg of 2) and ionized ...

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• Energetic Particles
• The Radiation Belt -- History
• Radiation Belts

Io ( "EYE oh" ) is the fifth of Jupiter 's known satellites and the third largest; it is the innermost of the Galilean moons. ... Discovered by Galileo and Marius in 1610. ... Io's surface is radically different from any other body in the solar system. ... The material erupting from Io's vents appears to be some form of sulfur or sulfur dioxide. ... Analysis of the Voyager images led scientists to believe that the lava flows on Io's surface were composed mostly of various compounds of molten sulfur. ...

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• Europa
• APOD Index - Solar System: Jupiter's Moons
• APOD: 2000 December 19 - A Close Up of Aurora on Jupiter

... Study of charged particles dynamics in magnetic field under microgravity conditions ( «Kulonovskiy Kristall» ) . Basic research of charged particles behavior mechanism under microgravity conditions . ... Testing the methods and aids to conduct biotechnological studies under space flight conditions . ... Development of the methods and onboard techniques to provide aseptic conditions for conduct of biotechnological experiments under manned space flight conditions ( «Aseptic» ) . ...

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• S.P. Korolev RSC Energia - International Space Station

... Tonight's Sky . ... Sky this Month . ... The Sky This Week: April 1 - 10 . ... Sky this Week . ... Astronomy for Kids . ... Sky Events . Get to Know the Night Sky . Tour the Deep Sky . Sky Guide . ... Observing springtime deep-sky objects with a large telescope . ... Astronomy 101 . ... Gift Center . ... International Center for Radio Astronomy Research, Perth, Western Australia . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

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• international space station | Astronomy.com
• International Astronomical Union | Astronomy.com
• International School of Advanced Studies, Trieste, Italy | Astronomy.com

... XLIX International Mathematics Olympiad, Madrid (Spain), July. XXXIX International Physics Olympiad, Hanoi (Vietnam), July. XXXX International Chemistry Olympiad, Budapest (Hungary), July. XX International Informatics Olympiad, Cairo (Egypt), August. ... XIII International Astronomy Olympiad, Trieste (Italy), October. ... II International Olympiad on Astronomy and Astrophysics, Bandung (Indonesia), August. ... of the XIII International Astronomy Olympiad (2008), . ...

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• XIV International Astronomy Olympiad: List of analogous Olympiads
• XII International Astronomy Olympiad: List of analogous Olympiads
• XI International Astronomy Olympiad: List of analogous Olympiads

NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Astronomy . ... Visitor Center . ... Planetary Radar . ... A program of delay-Doppler mapping of the Galillean satellites is underway by L. Harcke and colleagues at Stanford University. The surfaces of Europa, Ganymede and Callisto have been imaged in order to determine the surface properties and look for different radar properties of the various terrain types. These maps will be correlated with the Galileo images of the satellites.€а . ...

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• Mercury National Astronomy and Ionosphere Center (Arecibo Observatory)
• The Moon National Astronomy and Ionosphere Center (Arecibo Observatory)
• water ice on mercury

... The eleven years cycle of Sun's activity is approaching its maximum! From August 24th to 29th a team of astronomers, engineers and astro-photographers will travel to southern Greenland to observe the Northern Lights (Aurora Borealis), a phenomenon expected to be particularly spectacular during this period. ... Auroras . The wonderful celestial spectacle of the aurora occurs when very energetic particles from the Sun reach the Earth's atmosphere via the solar wind. ... About GLORIA . ...

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• Physics of Magnetic Stars 2007

... Team . ... V.V.Sokolov "The gamma-ray bursts, core-collapse supernovae and global star forming rate at large redshifts" . ... I.V.Sokolov, A.S.Moskvitin, Eda Sonbas, O.V.Verkhodanov, O.P.Zhelenkova "A galaxy cluster in the GRB 021004 field" . ... The monitoring of GRB afterglows and the study of their host galaxies with the SAO RAS 6-m telescope from 1997". ... A.S.Moskvitin, T.A.Fatkhullin, V.V.Sokolov and V.N.Komarova, "Spectral and photometric monitoring of CCSNe at SAO RAS" . ...

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Go directly to the moons of: . Mercury Venus Mars Jupiter Saturn Uranus Neptune Pluto . MARS . Pronunciation . Earth's Moon . ... Aeolis . ... Aestuum . ... Aeria . ... A-muh-ZAHN-is . ...

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• Planets and Moons

Giant Jupiter. Jupiter . ... Jupiter has no solid surface that is why speaking about its dimensious point the radius of the upper border line of the clouds, where the presseru is about 10 KPa; radius of Jupiter on the equator is 71400 km. ... The Jupiter satellites. ... Nowadays 16 satellites of the Jupiter are known: Adrastea, Mitis, Amaltea , Phina,then 4 Galilei satellites: Io , Europe , Hanimed , Callisto , Leda, Aimalia, Zicitea, Elara, Ananke, Carme, Pasipe and Sinope. ... Jupiter's ring. ...

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• saturne

... Conference abstracts (PDF, 92k) . 09:30-10:30 . ... Translation flows on Z d covers of compact translation surfaces . ... Coffee . ... Volume entropy for surface groups . ... Ergodicity of infinite translation surfaces . ... Stationary measures on homogeneous spaces . ... Dynamics of SL (2, R ) on Prym eigenforms . ... Symbolic dynamics of a traffic map . ... Ergodic flows and some problems in analysis . ... Connected components of the strata of the moduli space of meromorphic differentials . ...

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• Conference "Combinatorial Methods in Physics and Knot Theory" (February 2005)
• Conference "Random Processes, Conformal Field Theory and Integrable Systems"

... Apr 14, 2016 - Monthly Meeting . ... The Amateur Telescope Makers of Boston, Inc. ATMoB) is an astronomy club devoted to telescope making, observing, and studying the heavens. ... CURRENT MOON . ... April Sky . ... Lyrids Meteor Shower . ... Sources: NASA JPL Space Calendar , StarDate Online , Sky Telescope , Harvard-Smithsonian Center for Astrophysics , RASC Observer’s Handbook , Abrams Planetarium Sky Calendar and Astronomy Magazine . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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THE PHOTOMETRIC RESEARCHS OF THE MERCURY'S SURFACE BY MEANS OF DIGITAL MODELS. ... The surface brightness of Mercury was measured Danjon (1933, 1949, 1953) and Harris (1961) in phase angle 3o-123o. The analysis of the various data of the integral photometric gives the results of determination of the main photometric constants for Mercury. ... THE PHOTOMETRIC RESEARCHS OF THE MERCURY'S SURFACE: S.G. Pugacheva The surface brightness of the Mercurian images was established on the geologic map Mercury. ...

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• Aleksei A. Berezhnoi
• bibliography
• Родионова Жанна Федоровна

... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Site Info . ... It is from from Voyager 1 and shows a whopping big impact crater dominating the profile of the moon. Note that Mimas is about 400 kilometers across (about 250 miles). ... The wall around the crater is 5 kilometers high, and that central peak rises 6 kilometers above the surface (many impact craters have a large central peak which is caused by a pressure rebound from the impact). ... 2008 Phil Plait. ...

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• Phil Plait's Bad Astronomy: Bad TV
• Phil Plait's Bad Astronomy: Misconceptions
• Phil Plait's Bad Astronomy: Bitesize Tour of the Solar System

astronomy . Astro Courses . ... IYA 2009 . ... Armagh Planetarium is proud to be associated with the International Year of Astronomy 2009 (IYA2009) . IYA 2009 is a global year of events celebrating all things associated with the absorbing science that is astronomy. ... IYA 2009 Autumn/Winter events . ... Here at Armagh Planetarium one of our most important objectives is to promote formal and informal science education and there will be activities celebrating IYA 2009 throughout the year. ...

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• The Mysterious Moons of Uranus | Astronotes
• Getting back up to speed | Astronotes
• Exploring Icy Moons in Search of Life | Astronotes