The nasa.gov site requires that JavaScripts be enabled in your browser. ... Contact NASA . ... The term "astronaut" derives from the Greek words meaning "space sailor," and refers to all who have been launched as crew members aboard NASA spacecraft bound for orbit and beyond. Since the inception of NASA's human space flight program, we have also maintained the term "astronaut" as the title for those selected to join the NASA corps of astronauts who make "space sailing" their career profession. ...

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... The Brightest Spot on Ceres . ... Credit Copyright: NASA , JPL-Caltech , UCLA , MPS/DLR/IDA Explanation: Dwarf planet Ceres is the largest object in the Solar System's main asteroid belt with a diameter of about 950 kilometers. ... Dwarf Planet Ceres . Bright Spots Resolved in Occator Crater on Ceres . An Unusual Mountain on Asteroid Ceres . Fly Over Dwarf Planet Ceres . Dwarf Planet, Bright Spot . Dark Craters and Bright Spots Revealed on Asteroid Ceres . ...

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• XWare > APOD
• Dwarf Planet Ceres
• Dark Craters and Bright Spots Revealed on Asteroid Ceres

... 2016 February 4 . Dwarf Planet Ceres . Image Credit License : NASA , JPL-Caltech , UCLA , MPS,DLR,IDA - Composition: Justin Cowart . Explanation: Dwarf planet Ceres is the largest object in the Solar System's main asteroid belt , with a diameter of about 950 kilometers (590 miles). ... Two of Ceres' famous mysterious bright spots at Oxo crater and Haulani crater are near center and center right of this view. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

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• APOD: 2011 February 3 - Six Worlds for Kepler-11
• Uranus' New Moons
• APOD: 2012 December 1 - Northern Mercury

... Planets . ... The planets were found using the HARPS instrument on the 3.6m telescope at ESOтАЩs La Silla Observatory. ... A planet in orbit around a star causes the star to regularly move towards and away from observers on Earth. ... One newly discovered planet, HD 85512 b, is best hope found so far for a habitable exoplanet. ... The HARPS team so far have found that about 40% of stars similar to own Sun have at least one planet smaller than Saturn (which is 95 times more massive than Earth). ...

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• A Rolling Stone on the Moon | Astronotes
• Kepler-11: a strange and crowded planetary system | Astronotes
• Stargazing in June | Astronotes

Databases (NSDC) of the Natural Planetary Satellites. ... NSDC: Database of astrometric observations of Natural Planetary Satellites . ... They are thoroughly looking for observations in different sources, creating their owndatabases which are then mostly inaccessible to other researchers. ... In the file "content" with explications, the reference is given to the data source as well as the bibliographic reference. ... Data sources. ... Why a specific bibliographic database for Natural satellites? ...

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• Data bases of Natural Satellites. Documentation. Sources
• Data base of Natural Satellites. Documentation. Structure

... The Australian National University] [Department of Physics] [Paul Francis] [Main Roleplay Page] . These exercises are my attempt to adapt the technique of Problem Based Learning to the context of introductory astronomy and astrophysics classes. ... As students grapple with the puzzle, they are forced to learn the subject matter of the course. ... This exercise is designed for 1st year University students with a reasonable high-school background in Maths and Physics. ...

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• Problem Based Learning in Undergraduate Astronomy

This artist s impression is based on a detailed map of the surface compiled from images taken from NASA s Dawn spacecraft in orbit around the dwarf planet Ceres. ... New observations using the HARPS spectrograph on the ESO 3.6-meter telescope at La Silla in Chile have revealed unexpected daily changes on these spots, suggesting that they change under the influence of sunlight as Ceres rotates. ESO/L.Calц§ada/NASA/JPL-Caltech/UCLA/MPS/DLR/IDA/Steve Albers/N. Risinger (skysurvey.org) ...

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• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7BC3D750A0-79D1-4AD3-8F16-CB459C5A5749%7D
• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B0E104FAA-5669-460F-A423-4B308550358E%7D
• Ground-based detection of super-Earth transit paves way to remote sensing of

... Science Users Information > Science Publications > Science Announcements > Revised Acknowledgement for Publications Based on ESO Data . ... Science Archive Facility . ... When findings based on ESO data are published, acknowledgement is requested through a specific statement, to be found here . ... Please add this acknowledgement to your future papers which are based on ESO data, regardless of whether these are new observations using proprietary data or data obtained from the ESO Science Archive . ...

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• ESO - Publications based on ESO Data
• The hidden fires of the Flame Nebula* | ESO
• Mario van den Ancker

... Sensitivity of a Global Search for Planets in Space-Based Astrometric Databases . ... Missions . ... Future Missions and . ... Missions Office . ... Research . ... Space-based astrometric missions, such as Hipparcos and the proposed GAIA and SIM missions, can yield frequently sampled, accurate position measurements for a large number of stars with uniform accuracy. Using Monte Carlo simulations, we assess the probability of identifying planets around nearby stars in such databases. ...

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• Common-Resolution Convolution Kernels for Space- and Ground-Based Telescopes
• Ground-Based Interferometry
• Guidelines for Preparing Viewgraphs and Computer based Presentations to be used

... Pluto's orbit is also highly inclined -- tilted 17 degrees to the orbital plane of the other planets. ... Ground-based observations indicate that Pluto's surface is covered with methane ice and that there is a thin atmosphere that might freeze and fall to the surface as the planet moves away from the Sun. ... This is the first image-based surface map of the solar system's most remote planet, Pluto. ... This is the first surface map of Charon, the moon of the solar system's most remote planet, Pluto....

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• Lunar Orbiter to the Moon (1966 - 1967)
• Dr. Victoria I. Prokhorenko
• Uranus' New Moons

... Pluto's orbit is also highly inclined -- tilted 17 degrees to the orbital plane of the other planets. ... Ground-based observations indicate that Pluto's surface is covered with methane ice and that there is a thin atmosphere that might freeze and fall to the surface as the planet moves away from the Sun. ... This is the first image-based surface map of the solar system's most remote planet, Pluto. ... This is the first surface map of Charon, the moon of the solar system's most remote planet, Pluto....

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• Lunar Orbiter to the Moon (1966 - 1967)
• Venera 15 & 16
• FIRPO

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ... Next: Step 3: Postprocessing to Up: How Pieflag works Previous: Step 1: Amplitude-based flagging . ...

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• Disk Recording
• Evolutionary Paths in Galaxy Morphology
• Disk Based Processing

LIPSKIY-RODIONOVA' LUNAR ANTIPODES AS PRECURSORS OF A REGULAR WAVE PLANETOLOGY G.G.Kochemasov IGEM of the Russian Academy of Sciences, Moscow, Russia kochem@igem.ru / Fax: (009)(095)230 21 79 The first observations of the lunar far side allowed to compare it with the near side and draw very important conclusions in the very beginning of planetary studies based on spacecrafts. ... Celestial bodies are dichotomic. ... The concept of celestial bodies includes Sun (a star) as one of them. ...

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• http://selena.sai.msu.ru/Symposium/lipskiy.pdf
• Vladislav V. Shevchenko
• List of publications

... The data of the Table are based on the data published by C.-I. Lagerkvist, A. W. Harris and V. ZappalА (See: “Asteroids II machine-readable data base: March 1988 floppy disk version”, National Space Science Data Center, Greenbelt MD). The Table was updated for publication in the volume for 2014 by B. Warner (Palmer Divide Observatory, Colorado Springs, U.S.A.), A. W. Harris (Space Science Institute, U.S.A.), and P. Pravec (Astronomical Institute, Academy of Sciences of Czech Republic) . ...

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• NAA 2009-2010 (preface)
• NAA 2015-2016 (preface)
• NAA 2013-2014 (preface)

... More on 51 Peg: . The discovery of a Jupiter--mass planet in orbit around the solar--type star 51Peg has been reported by Michel Mayor and Didier Queloz (Geneva Observatory) on October 6th at the 9th Cambridge workshop on "cool stars, stellar systems, and the sun" held at Florence (Italy). ... Recall that the measurements of radial velocity only yield v sin i which in turn gives us M sin i. For most values of i, sin i will be greater than 0.5 and this gives a mass estimate of 0.5 Jupiter masses. ...

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• http://zebu.uoregon.edu/2003/ph301/age_of_the_earth.html
• http://zebu.uoregon.edu/~uochep/talks/talks05/lumi.pdf
• Taylor and Francis Page

... OF MARTIAN MISSION ELEMENTS . At present, RSC Energia has developed a conceptual configuration for the interplanetary orbiter where the crew will work during the entire interplanetary transit. ... Interplanetary expedition vehicle assembly plan has been developed. ... A program has been developed for building a series of small spacecraft based on the interplanetary vehicle concept with electrical propulsion main engines and solar arrays. ... Official WEB-site of S.P.Korolev RSC Energia . ...

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• S.P.Korolev RSC Energia - MIR ORBITAL COMPLEX
• S.P.Korolev RSC Energia - LAUNCHERS
• S.P. Korolev RSC Energia - News

... Search . ... Astrophysics Group . Research . ... Research and Instrumentation . ... While this seems an extraordinary endeavour, in light of what we have learnt about Solar System planets, only a handful of key ingredients are required to start characterising an exoplanet. ... The NGTS project is a partnership between the University of Cambridge, Queen?s University Belfast, University of Warwick, University of Leicester, Observatoire de Geneve, DLR (Berlin) and Universidad Catolica de Chile. ...

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• UK involvement in future ground-based B-mode and SZ experiments

... The history of star formation was successfully analyzed for the first time based on the spectra of the stellar population of dwarf galaxies of low surface brightness outside the Local Group. We have investigated the stellar population of two dwarf spheroidal galaxies KDG61 and KDG64 in the central part of a close group of galaxies M81. ... These galaxies are dominated by the old stellar population (12-14 billion years) of low metallicity ([Fe/H] ~ -1.5). ... KDG61 . ... KDG64 ...

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• Galaxy sector, archive 2007
• Galaxy sector, archive 1994
• Metagalaxy sector, archive 1997

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

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• The NMW survey homepage

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Three sixth-form students from St Patrick's Grammar School, Armagh , used the Faulkes Telescope South in Australia in April to observe and measure HW Virginis , an unusual "binary" or double star system suspected to host one or two extrasolar planets orbiting the central stellar pair. ... Armagh Observatory and associated researchers hope to develop this work to look for further evidence of planet-hosting binary star...

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• Japanese Discover Large Earth Crossing Asteroid
• The Hershel Space Observatory - the golden age of space-based IR astronomy
• Refereed Journal Publications 1999