... 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 . ...

... February 18, 1997 . A Big Cliff on Jupiter's Callisto . Credit: The Galileo Project , JPL , NASA . Explanation : Callisto 's surface is not without fault. In fact, an explorer crossing the surface of this large moon of Jupiter would need climbing equipment to pass this large, recently discovered fault. ... As the Sun illuminates Callisto 's surface from the left, the unusual cliff or scarp stands out by the shadow it casts to the right. ... About APOD > . ... NASA Technical Rep.: ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Risks Comparable to NEOs . ... The Increasing Rate of Discovery of Asteroids . ... Comet and Asteroid Collision Probabilities . ... Extreme albedo comets and the impact hazard (PDF Format) . ... Asteroid Impact Animations . ... Workshop on Scientific Requirements for Mitigation of Hazardous Comets and Asteroids - 2002 . ... The Spaceguard Survey Report, 1992 (PDF) . Tsunami from Asteroid/Comet Impacts . ...

... LP-Moon.pdf - 26KB . ... A. A. Berezhnoy1,2, N. Hasebe1, M. Kobayashi1, G. Michael3 and N. Yamashita1 1Advanced Research Institute for Science and Engineering, Waseda University, Tokyo, Japan 2Sternberg Astronomical Institute, Moscow, Russia 3German Aerospace Center, Institute for planetary research, Berlin, Germany . Brown University - Vernadsky Institute Microsymposium 40, 2004, Moscow, Russia . ... 3Now at: Sternberg Astronomical Institute, Moscow University, Moscow, Russia . ...

... Last year Russian Academy of Sciences and Roscosmos proposed to include the Lander for investigation of the Jupiter Moon Europa as an additional element of EJSM/Laplace international mission to Jupiter system. The main scientific objectives of this element will be a search of possible present and past signatures of life and ‘in situ’ studies of the environment by remote and contact methods. ... Synergy between Lander and EJSM/LAPLACE mission spacecraft (including possible joint experiments). ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2000 February 13 . Southwest Mercury . Credit: Mariner 10 , NASA . Explanation: The planet Mercury resembles a moon. ... In fact, the Earth is the only planet more dense. ... From Earth , Mercury's proximity to the Sun cause it to be visible only for a short time just after sunset or just before sunrise. ... About APOD | ...

Astronotes Armagh Planetarium's Stellar Blog! ... Comets and Asteroids . ... Space Flight . ... Earth Satellites . ... By admin February 19, 2011 Posted in: Comets and Asteroids . ... Since it was launched in 1999, the Stardust spacecraft has travelled about 5.7 billion km (3.5 billion miles) on its odyssey from Earth to comet Wild 2, back to Earth then on to comet Tempel 1. ... Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration. ...

... 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 ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Impact sur Jupiter€а: cтАЩ†йtait un ast†йro†пde . ... Un ast†йro†пde €л€аde la taille du Titanic€а€Ё est †а lтАЩorigine de la tache sombre apparue dans lтАЩatmosph†иre de Jupiter le 19 juillet 2009. ... Une explosion sur Jupiter ...

Serguei NATANZON (UIM, Moscow): Klein topological field theories . It is well-known that classical two-dimensional topological field theories are in one-to-one correspondence with commutative Frobenius algebras. An important extension of classical two-dimensional topological field theories is provided by open-closed two-dimensional topological field theories. In this paper we extend open-closed two-dimensional topological field theories to nonorientable surfaces. ...

... US state, Canadian province, or country . ... An artificial comet holds secrets to Earths life . ... space flight . ... space physics . ... Why doesn't the International Space Station rotate to create artificial gravity like stations in the movies? ... RELATED TOPICS: INTERNATIONAL SPACE STATION . The International Space Station is a one-of-a-kind lab-oratory for a specific reason: microgravity. ... Get instant access to subscriber content on Astronomy.com! ...

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 . ...

... Jupiter. ... The time in the table is the mean solar time for the Almaty time zone. ... Almaty and Cholpon-Ata are in the same time zone. h 25 h 36 h 00 h 12 h 24 h 36 h 48 h 12 h 48 m (February 28) m m m m m m m m (March 1) m m m m m m m m m m m m m m m m m m m m 14.92 15.08 15.41 15.44 15.37 15.12 14.92 14.89 14.80 14.78 14.80 14.82 14.85 14.96 14.72 14.72 14.63 14.65 14.77 14.84 15.10 15.43 15.32 15.05 14.90 14.75 14.73 14.70 Bishkek ­ Cholpon-Ata , Kyrgyzstan ...

... PROGRESS M-66 CARGO VEHICLE . ... Baikonur branch office of S.P.Korolev RSC Energia, Baikonur launch site. At 08 hours 49 minutes 46 seconds Moscow Time transport cargo vehicle Progress M-66 was launched from Baikonur Cosmodrome as per Mission Program and the commitments undertaken by the Russian side under the International Space Station Project. ... At Baikonur launch site the preparations continue for the launch of Progress M-66 cargo vehicle under the International Space Station program. ...

... Science User Portal . ... Travel to E-ELT Armazones . ... ESO Top 10 Astronomical Discoveries . ... For more information about upcoming astronomical events and ESO's activities around these events please contact the ESO education and Public Outreach Department . ... Information about these observations, observations with other telescopes, and major astronomical events is available on IAU Circulars, as communicated by observers and published by the IAU Central Bureau for Astronomical Telegrams (CBAT)...

HST has resumed science observations with NICMOS, FGS and WFPC2. ... Abstract . ... Leon Koopmans, Kapteyn Astronomical Institute . ... The largest Kuiper belt objects . ... Comprehensive Auroral Imaging of Jupiter and Saturn during the International Heliophysical Year . ... 2007 has been designated the International Heliophysical Year, and HST will be playing a key part in the associated scientific activities by participating in a detailed investigation of auroral activity in jupiter and Saturn. ...

... 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. ...

... Home Gallery Astrophotography Stanley Fertig Gallery Jupiter . ... Lecture Series 2014-2015 . ... AAA Fall Astronomy Class: Astronomy Basics тАУ October-November 2015 . ... Clear Sky Chart . This Month's Sky . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

... Students Life . ... February 24, 2014 . Conference in Foreign Languages: Wrap-Up . On February 22, 2014, V. N. Karazin Kharkiv National University held a regional student scientific conference Foreign Languages in the World Economic and Legal Environment organized by the Department of Business Foreign Language and Translation (School of Foreign Languages), the School of International Economic Relations and Travel Business, and the School of Economics and engaging 77 participants. ... Language. ...

NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Astronomy . ... Planetary Radar . Mercury . ... One of the major recent successes in the field of planetary radar astronomy was the discovery and mapping of deposits of volatiles on the shadowed floors of impact craters at the poles of Mercury. ... The figure shows the most recent Arecibo 12.6 cm wavelength radar image of the north polar region of Mercury made at a resolution of 1.5 km by J. Harmon (NAIC), P.Perrilat (NAIC) and M. Slade (JPL). ...