An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . ... a) Changes in the Solar System - Continued . The Cratered Face of the Moon Impact craters on the Earth, Moon, and other worlds are formed by the bombardment of chunks of rock and ice from space. ... So we conclude that the solar system experienced many more impacts in the distant past than today. ... The Changing Universe - Changes in the Solar System - Changes in Stars - Changes in the Universe | ...

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Astronomy Picture of the Day . An Active Sunspot Viewed Sideways . ... Credit Copyright: Hinode , JAXA , NASA Explanation: Why are there dark spots on the sun? Although noted for thousands of years, sunspots have been known for decades to be regions of the Sun that are slightly depressed and cooled by the Sun's complex and changing magnetic field . ... Publications with keywords: sunspot - magnetic field - Sun . Publications with words: sunspot - magnetic field - Sun . ...

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• Dark Volcano Active on Io
• Maximum Sun
• Sunspots and Solar Active Regions

... Tonight's Sky . ... The Magazine . ... Star Atlas . ... An artificial comet holds secrets to Earths life . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... The planet has extreme temperature swings and perhaps active lava flows. ... A digital supplement to Astronomy magazine. ... Join TravelQuest International with Astronomy and Discover magazines on one of three great tour options surrounding this celestial spectacle . ... Astronomy Magazine . ...

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• active galactic nuclei | Astronomy.com
• View more active galactic nuclei | Astronomy.com
• Do the magnetic fields of the planets affect spacecraft during flybys? |

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Astrophysics graduate student programs . ... 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 . ... active optics . ...

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• Orientation and Evolutionary Effects in Active Galactic Nuclei
• The Active Algol Binary KZ Pavonis
• Two-Dimensional Active Cursor

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. November 10, 1997 . Dark Volcano Active on Io . Credit: Galileo Project , JPL , NASA . ... A vast moonscape roughly the size of Arizona has just been covered by some dark material. ... It's composition remains unknown although it is certainly different in color from the red material seen surrounding volcano Pele on the upper left. ...

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• APOD: 2007 April 2 - An Active Sunspot Viewed Sideways
• APOD: May 4, 1999 - Magnetic Mars
• APOD: 2013 November 16 - Active Comet ISON

Why do people want to explore Mars? At the present time Mars topography is known sufficiently well to make a Martian map; we cannot distinguish yet the settlements of the inhabitants of this planet, but sooner or later we probably will be able to achieve this as well.. ... US spacecraft "Mariner-4" performed the first successful flyby and transmitted to the Earth twenty one photos of Mars' surface. ... It is supposed that large subsurface ice reservoirs or liquid water exist on Mars. ...

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• What's New in the Nine Planets
• Substorm expansion phase [Oulu]
• A Plea for Support of the Space Program

... Bad Astronomy . ... I think I will break from my usual format of Bad Astronomy/ Good Astronomy by saying that the way we define seasons currently is not strictly bad, but I feel (in my opinion!) that it could be better. The definition of when the seasons begin is at the moment of solstice or equinox; that is, winter (in the north) starts on December 22 nd and summer starts on June 22 nd . ... Now imagine breaking up the Sun's 46 degree up-and-down yearly swing into 1 day intervals. ...

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

... Armagh Planetarium . ... Universe . ... Posted on January 29, 2014 | ... Continue Reading.. ... No Comments Teachers from across Northern Ireland have come together to learn how to build and launch their own rockets. ItтАЩs all part of an initiative deriving from a new тАШSpace Science [ ] . ... Hello, IтАЩm Colin, welcoming you to Astronotes, the PlanetariumтАЩs official blog. Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration. ...

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• How has Mars changed over billions of years? | Astronotes
• Planets | Astronotes
• Image of the Month: Lindsay Crater | Astronotes

... RATAN-600 data for the BL Lacertae objects (multi-frequency catalogue, Version 1.0) . GPS radio sources . ... Kovalev et al. (2009) also investigated the correlation between radio emission and gamma-ray flux (using Fermi-LAT data after the first 3 months of observations) for 135 AGNs. ... Moreover, the correlation between high-frequency radio emission (at 37 GHz) and gamma-ray emission (100 MeV.100 GeV, Fermi-LAT data) for 249 northern AGNs was studied by Nieppola et al. ... GHz) . ...

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• Quasars and Active Galactic Nuclei
• Converting Modules from Apache 1.3 to Apache 2.0 - Apache HTTP Server

I added a new directory search to Zope, which returns the important fields for an individual user. ... I finished changes to the ldap search product and asked it to be moved to production. ... I ran some reports to track down our problem childrenin Active Directory. ... I'm working on a fix to the employee update sscript. ... The problem with the employee update script proved to be more elusive than I thought. ... I finished changing the employee update script to remove employees who have left. ...

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• Archive for January
• Dr Andrea Banzatti | STScI
• HST this week: 235

... Цвет: красный,серо-черный,серый мышиный,черный,экрю . Изысканная наволочка Oph?lia из мягкой перкали, 100% хлопка. ... Размер: 50 x 70 см.65 x 65 см.50 x 70 см.65 x 65 см.65 x 65 см.50 x 70 см . Цвет: синий . ... Материал верха: искусственная кожа . ... Материал подошвы: резина . ... Кеды Zenden Active. ... Материал: искусственная кожа. ... Возраст: Взрослый . ... Цвет: бордовый . Возраст от месяцев: 12 . ... Возраст: Детский . Размер: 80,92,104,98,86 . ... Материал стержня: CrMoV ; . ...

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• Кроссовки Zenden Active - Zenden Active - Zenden Active fashion наручные
• Кроссовки Zenden Active - Zenden Active - Zenden Active Тепловая пушка Roda
• Куртка утепленная Emoi - Emoi - Emoi Кроссовки iD active

... The active time at each angular bin is the sum over frames of the active time contributions from all CCD pixels, within the node-specific telemetry window, which overlap the surface of the bin. ... The active time, per frame, of a normal pixel is the full frame integration time multiplied by the node-specific fractional exposure; bad pixels contribute no active time. ... If an event is rejected for this reason only, then its pixels remain normal in the exposure map. ...

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• Future developments

... Contacts . 2010: . Sources of polarized radiation with unusual spectral features discovered in the Sun. In the framework of the study of solar active regions that produce powerful flares the researchers from the RATAN-600 radio telescope have detected sources with features in the form of a sharp decrease in the intensity of polarized radiation in various parts of the recorded frequency range (2-16GHz), sometimes changing the sign of polarization. ... Contacts: Bogod V.M. ) . Archive . ...

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• Solar system sector, archive 1998
• Solar system sector, archive 1993
• Detection of polarized radiation sources with unusual spectral characteristics

... Science . ... Science Users Information > Science Publications > Science Announcements > Clustering Measurements of Active Galactic Nuclei . ... Observing Facilities . ... ESO Data . ... Galaxies and active galactic nuclei (AGN) are not randomly distributed in the Universe. ... This ESO workshop, which will be the first ever dedicated workshop on AGN clustering, aims to summarise our current understanding of AGN clustering and how the community should prepare for upcoming data sets and challenges. ...

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• Visiting with an Old and Active Friend (ESO PR Photos 07a-b/01)
• Gaitee Hussain @ ESO
• Aleksandar Cikota

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... 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 La com?иte Chury toujours active . ... Cette photo prise le 1 er mars 2016, ?а seulement 26,7 km de distance, met en ?йvidence un beau jet de mati?иre qui s'?йchappe en bordure des r?йgions Imhotep et Bes, sur le lobe de l'h?йmisph?иre Sud de la com?иte. ... Etat du ciel ...

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• Une navette ?а la mer ! | Ciel et Espace
• Le ciel change | Ciel et Espace
• D?йcouverte: du volcanisme r?йcent sur Mercure | Ciel et Espace

. Language [RU/EN] Search: . Home . UP . Research . Projects . Services . Info . News . Events . Personal . Archive . Ionosphere and radiowave propagation: structure . The main page . Information . Publications: . 2011 - 2015 . 2009 - 2010 . 2007 - 2008 . 2005 - 2006 . 2000 - 2004 . 1995 - 1999 . Participation in International symposiums and conferences: . 2013 - 2015 . 2011 - 2012 . 2009 - 2010 . 2007 - 2008 . 2005 - 2006 . 2002 - 2004 . N.V. Pushkov . 09/04/2016 23:52 MSK . webmaster@izmiran.ru .

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• Oct-Nov 2003
• Information
• APEX/Intro

... Pre-university education . ... Samara region . SSAU History . SSAU roadmap . ... Samara State Aerospace University (SSAU) will take an active part in the work of space activities of the United Nations organization (UNO). ... The road map shape on inclusion of Samara University into implementation of the UN Program on Space Applications was outlined at the roundtable discussion with the University teachers and specialists and at the meeting with SSAU Rector Yevgeniy Shakhmatov. ...

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• Spacecraft 'Aist-2D' can be 'seen' through the earth
• Buri Mukesh-singkh
• SSAU is one of the leading educational and research Russian institutions

... B.1 New functionality . ... B.3 Semantic changes from CSS1 . ... CSS2 builds on CSS1 and all valid CSS1 style sheets are valid CSS2 style sheets. The changes between the CSS1 specification (see [CSS1] ) and this specification fall into three groups: new functionality, updated descriptions of CSS1 functionality, and changes to CSS1. ... Several internationalization features, including list numbering styles , support for bidirectional text , and support for language-sensitive quotation marks . ...

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... Basic Research results General information Main characteristics of the Radio telescope Observing programs General view of the antenna array Main research areas Principle of generation of radio images Radio telescope's beam Receiving systems Main characteristics of the base receiving-recording complex Calibrations Data archive and databases Publication of data Possibilities of observing the structure and dynamics of microwave activity SSRT - Research results . ...

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... May 15, 1998 . TRACE and the Active Sun . Credit: Courtesy CFA , TRACE Team , NASA . ... It shows graceful arcs of intensely hot gas suspended in powerful looping magnetic fields which soar above a solar active region. ... By operating the TRACE instruments during the Sun's increasingly active phase, scientists hope to explore the connections between complex solar magnetic fields and potentially hazardous solar eruptions. ... About APOD > . ... NASA Technical Rep.: ...

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• APOD: 2000 June 21 - Solstice Celebration
• APOD: 2000 July 20 - AR9077: Solar Magnetic Arcade
• APOD: June 16, 1998 - An Active Region of the Sun