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. Photo: small, round, dark body against a large fiery colored one.

Venus Transit seen by NASA's
Sun-observing TRACE spacecraft.

Photo: NASA Web site


Resources for the latest in astronomy and space sciences.

Library of Congress Science, Technology, and Business Division & NASA Goddard Space Flight Center Special Programs Series.
   A list of upcoming programs and links to past program webcasts. Coming up:
     Tuesday, May 8: “A Rare Astronomical Event: Transit of Venus” with Dr. Sten Odenwald,
      Astrophysicist and Director of SpaceMath@NASA.

2012 Transit of Venus
   Sun-Earth Day: Shadows of the Sun

Transit of Venus : June 5–6, 2012
   The Editors of Sky & Telescope

It's a twice in a lifetime moment: the transit of Venus across the Sun
   Robin McKie, Science Editor
   The Observer, Saturday 24 March 2012         

Science@NASA Headline News



Living With a Star Program
   The origins and fate of life on Earth are intimately connected to the way the Earth responds to the Sun's variations. Understanding the changing Sun and its effects on the Solar System, life, and society is the goal of the Sun-Earth connection theme of the Living With a Star Program and Space Weather Research Network at NASA. See also the Space Weather Program

Solar Physics: Marshall Space Flight Center
   Formed in the early 1970's in conjunction with the Apollo Skylab Mission.

Solar System – Jet Propulsion Laboratory (NASA)
   Link to all NASA solar system missions.

STEREO: Studying the Sun in 3-D
   STEREO (Solar TErrestrial RElations Observatory) is the third mission in NASA's Solar Terrestrial Probes program (STP). This two-year mission, launched October 2006, will provide a unique and revolutionary view of the Sun-Earth System. The two nearly identical observatories - one ahead of Earth in its orbit, the other trailing behind - will trace the flow of energy and matter from the Sun to Earth.



Astrogeology Research Program (US Geological Survey)
   Data & information section has databases for planetary nomenclature, impact craters on Venus, and regional and global maps and imagery.

Lunar & Planetary Institute
   A research institute that provides support services to NASA and the planetary science community, and conducts planetary science research.

Minor Planet Center – International Astronomical Union
   An overview of the history, mythology, and current scientific knowledge of the planets, moons and other objects in our solar system.



Near-Earth Objects (NEOs) are comets and asteroids that have been nudged by the gravitational attraction of nearby planets into orbits that allow them to enter the Earth's neighborhood.

Near Earth Object Information Center
   Part of the UK Government's response to the Report of the Task Force on Potentially Hazardous Near Earth Objects.

Near Earth Object Program (NASA)

The NEO Page – Harvard University

Space Topics: Near Earth Objects



California & Carnegie Planet Search (CCPS)
   Since 1995, our group has discovered 115 Jupiter-like and Saturn-like planets orbiting nearby stars. Our survey began at UCO/Lick Observatory on Mount Hamilton in Northern California and has expanded to the world's largest telescopes.

Planetquest (NASA)



   A scientific experiment that uses Internet-connected computers in the Search for Extraterrestrial Intelligence (SETI); participate by running a free program that downloads and analyzes radio telescope data.

SETI Institute
   A private, nonprofit organization dedicated to scientific research, education and public outreach. SETI is an exploratory science that seeks evidence of life in the universe by looking for some signature of its technology. Online resources include a bibliography of books and references, an index of scientific papers organized by author’s last name, and a newsletter archive dating back to 1992.



Aladin Interactive Sky Atlas
   The Sky Atlas allows users to visualize digitized images of any part of the sky, to superimpose entries from astronomical catalogs or personal user data files, and to interactively access related data and information from the SIMBAD, NED, VizieR, or other archives for all known objects in the field.

Anglo-Australian Observatory Astronomical Images
   A unique collection of wide-field astronomical photographs, mostly made with the telescopes of the Anglo-Australian Observatory by David Malin.

Astronomical Applications – US Naval Observatory
   Data services, information on common astronomical phenomena, calendars and time, astronomical and navigational almanacs, special publications, research reports, and software.

Astronomy – U.S. Naval Observatory
   Data services includes rise, set, transit, twilight data; phases of the moon, eclipses and transits, positions of celestial objects, and more.

   The High Energy Astrophysics Science Archive Research Center is an archive of astronomy data from extreme ultraviolet, X-ray, and gamma-ray observatories: Archival data, multi-mission software and analysis tools, information about current and past observatory missions, and information for educators and the public. The site has an extensive links page, a collection of images, and a cross-database search engine, the National Virtual Observatory to search for objects in a particular region of the sky.

Historical Lunar Data Archive
   A variety of data selected from a collection of data commonly referred to as the Lunar Consortium Data, consisting of products derived from Apollo, Lunar Orbiter, Galileo, and Zond 8 missions. Select data collected from Earth-based observations are also included as part of this collection.

   Consists of a database and tools to process data according to the user's requirements. The scientific goal which motivates the development of HyperLeda is the study of the physics and evolution of galaxies. Originally LEDA, created in 1983, it became HyperLeda after merging with Hypercat in 2000. At present the database contains about 3 million objects, out of them 1 million are certainly galaxies (with a high level of confidence).

NASA Astrophysics Data System (ADS)
   The SAO/NASA Astrophysics Data System is a digital library for physics, astrophysics, and instrumentation, operated by the Smithsonian Astrophysical Observatory (SAO) under a NASA grant. The ADS maintains three bibliographic databases containing more than 7.7 million records. For details, read the description and review in Issues in Science & Technology Librarianship (ISTL) by Leith B. Woodall.

NASA Extragalactic Database (NED)
   Built around a master list of extragalactic objects for which cross-identifications of names have been established, accurate positions and redshifts entered to the extent possible, and some basic data collected. Bibliographic references relevant to individual objects have been compiled, and abstracts of extragalactic interest are kept on line. Detailed and referenced photometry, position, and redshift data, have been taken from large compilations and from the literature.

National Radio Astronomy Observatory – Imagery Gallery
   This gallery contains a collection of astronomical images taken with NRAO instruments, as well as photographs of NRAO telescopes and facilities.

National Space Science Data Center (NSSDC) (NASA)
   Located at the Goddard Space Flight Center, sponsored by the Office of Space Sciences, the NSSDC is a permanent archive for space science mission data. Resources for the public include a photo gallery, a planetary image archive, chronology of lunar and planetary exploration, planetary fact sheets, and more.

National Solar Observatory Digital Library
   Online archive of major NSO data sets.

Planetary Data System (NASA JPL)
   Archives and distributes scientific data from NASA planetary missions, astronomical observations, and laboratory measurements. Site links to seven university/research center science teams, called discipline nodes. These nodes specialize in specific areas of planetary data. The contributions from these nodes provide a data-rich source for scientists, researchers and developers.

Regional Planetary Image Facility
   An international system of planetary image libraries, was established in 1977. These facilities maintain photographic and digital data as well as mission documentation and cartographic data. Each facility's general holding contains images and maps of planets and their satellites taken by solar system exploration spacecraft.

Strasbourg Astronomical Data Center
   The Strasbourg Astronomical Data Center (CDS) is a data center dedicated to the collection and worldwide distribution of astronomical data and related information. It is located at the Strasbourg Astronomical Observatory, France. The CDS also hosts the SIMBAD astronomical database, the world reference database for the identification of galactic objects, and VizieR, the most complete library of published astronomical catalogues and data tables available.



Anglo-Australian Observatory (AAO)
   Operates the Anglo-Australian and UK Schmidt telescopes on behalf of the astronomical communities of Australia and the UK. The astronomical images page is a unique collection of wide-field astronomical photographs.

Australian Telescope National Facility
   Supports Australia's research in radio astronomy. It is administered by the CSIRO, Australia's national scientific research organisation and is funded by the Australian Government. The ATNF operates the Australia Telescope which consists of the Compact Array at Narrabri and the Parkes and Mopra radio telescopes. These telescopes can be used together as a long baseline array for use in Very Long Baseline Interferometry.

Carnegie Institution for Science - The Observatories
   Includes the Giant Magellan Telescope, the twin Magellan telescopes and the DuPont and Swope telescopes; located on Cerro Las Campanas, Chile. The Publications & Library Services page offers members preprints of recent journal articles, organized by subject.

European Southern Observatory
   The ESO Very Large Telescope (VLT) at the Paranal Observatory (Atacama, Chile) is the world's largest and most advanced optical telescope. ESO also releases images of observed objects to the public.

The European Virtual Observatory
   The EURO-VO project aims at deploying an operational Virtual Observatory (VO) in Europe. The Virtual Observatory is an international astronomical community-based initiative. It aims to allow global electronic access to the available astronomical data archives of space and ground-based observatories, sky survey databases. It also aims to enable data analysis techniques through a coordinating entity that will provide common standards, wide-network bandwidth, and state-of-the-art analysis tools. (NASA)
   Produced by the Space Telescope Science Institute’s Office of Public Outreach, the site provides news from NASA's Hubble Space Telescope, an image gallery, and a reference desk page with links to an FAQ, a glossary, and a facts and figures page. Content and image-rich pages.

The James Webb Space Telescope
   The James Webb Space Telescope is NASA's next orbiting observatory and the successor to the Hubble Space Telescope. A tennis court-sized telescope orbiting far beyond Earth's moon, Webb will detect infrared radiation and be capable of seeing in that wavelength as well as Hubble sees in visible light. JWST will find the first galaxies that formed in the early Universe, connecting the Big Bang to our own Milky Way Galaxy.

Mars Reconnaissance Orbiter (NASA)
   NASA's Mars Reconnaissance Orbiter blasted off from Cape Canaveral in 2005, on a search for evidence that water persisted on the surface of Mars for a long period of time.

National Radio Astronomy Observatory(NRAO)
Designs, builds and operates the world's most sophisticated and advanced radio telescopes. Watch the video (MPEG) to learn more about NRAO and radio astronomy. The browsable and searchable Image Gallery contains a collection of astronomical images taken with NRAO instruments, as well as photographs of NRAO telescopes and facilities.

National Solar Observatory (NSO)
   Operated by the Association of Universities for Research in Astronomy under a cooperative agreement with the National Science Foundation.

SOHO: Solar & Heliospheric Observatory
   SOHO is a project of international collaboration between the European Space Agency and NASA to study the Sun from its deep core to the outer corona and the solar wind. Launched on December 2, 1995, the SOHO spacecraft carries twelve instruments. Large radio dishes around the world which form NASA's Deep Space Network are used for data downlink and commanding. Mission control is based at Goddard Space Flight Center.

Spitzer Space Telescope
   Studying the universe in infrared.

Strasbourg Astronomical Observatory
   Hosts teaching and research activities, and the services of the Strasbourg Astronomical Data Center (CDS).

U.S. Naval Observatory
    Provides a wide range of astronomical data and products, and serves as the official source of time for the U.S. Department of Defense and a standard of time for the entire United States.



American Association of Variable Star Observers
   The AAVSO at Harvard College Observatory coordinates variable star observations made largely by amateur astronomers and it is the world’s largest association of variable star observers in existence. The web site offers a subject index to their journal, online versions of the AAVSO Observing Manual in HTML and PDF, a variable star chart database and more.

American Astronomical Society (AAS)
   Established 1899, is the major organization of professional astronomers in North America. Publishers of The Astronomical Journal and The Astrophysical Journal, the society’s web site offers resources to members.

Association of Universities for Research in Astronomy
   A consortium of 34 U.S. institutions and 7 international affiliates: universities, and educational and other non-profit institutions that operate world-class astronomical observatory centers.

International Astronomical Union (IAU)
   Promotes and safeguards the science of astronomy in all its aspects through international cooperation. Members are professional astronomers all over the world, at the Ph.D. level or beyond and active in professional research and education in astronomy. It is the official star naming entity, and provides a guide on the subject of naming astronomical objects

Planetary Society
   The world's largest space-interest group, is dedicated to inspiring the public with the adventure and mystery of space exploration.



The Astronomer Online
   For the advanced amateur; the aim is to publish all observations of astronomical interest as soon as possible after they are made. Subscription is modest and provides access to much content.

The Astronomical Journal
   Online archive to 1998; free full-text access in multiple formats.
   Electronic version of print magazine, gives table of contents of current issue, and downloadable PDF format author, title, subject indexes of issues from 1973-2000. Free resources online include Astro for Kids. Other material requires subscription and/or registration.

Astronomy Education Review
   The leading international research journal in its field and publishes papers across the breadth of astronomy and astrophysics. Hosted on the American Institute of Physics’ Scitation platform. AER is freely available and accessible to all. Complete digital backfile to 1996.

Astronomy Now Online
   Has a news archive, Spaceflight Now which provides online abstracts and full-text of all articles to 1999.

Astrophysical Journal
   The leading international research journal in its field and publishes papers across the breadth of astronomy and astrophysics.

Journal of the American Association of Variable Star Observers
   The electronic version of the Journal of the AAVSO. The eJAAVSO consists of papers that have been refereed, edited, and accepted for publication in the paper edition of the JAAVSO.

Sky & Telescope
   Sky & Telescope an excellent list of astronomy web sites, downloadable software programs, articles on SETI, searchable archive, and a lot more free content


100 Hours of Astronomy
   Websites and other resources that may be of interest to students, instructors, and informal educators

Astronomy & Astrophysics Tracer Bullet
   A comprehensive bibliography of resources in astronomy.

   A collection of pointers to astronomically relevant Internet resources, maintained by the AstroWeb Consortium

Buying Stars and Star Names

Gazetteer of Planetary Nomenclature

Globe at Night
   Annual global sky observation that brings people outside to observe the constellation Orion.

Harvard-Smithsonian Center for Astrophysics – Education & Outreach

NASA Missions

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   April 11, 2012
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