International Academy of Astronautics (IAA) - Founded in Stockholm in 1960. IAA has brought together the world's foremost experts in astronautics to recognize the accomplishments of their peers, to explore and discuss cutting-edge issues in space research and technology, and to provide direction and guidance in the non-military uses of space and the ongoing exploration of the solar system.
Anglo-Australian Planet Search - A long-term program being carried out on the 3.9m Anglo-Australian Telescope (AAT) to search for giant planets around 200 nearby Solar-type stars with V<7.5. The project uses the doppler wobble technique to search for these otherwise invisible extra-solar planets and to achieve the highest precision demonstrated by any Southern Hemisphere planet search.
AstroBetter - Tips and tricks for professional astronomers.
Atacama Large Millimeter/submillimeter Array (ALMA) - An international partnership of Europe, North America and East Asia in cooperation with the Republic of Chile,the largest astronomical project in existence. ALMA will be a single telescope of revolutionary design, composed initially of 66 high precision antennas located on the Chajnantor plateau, 5000 meters altitude in northern Chile.
Bright Supernova - Occasionally, a large star reaching the end of its life collapses in on itself, then explodes violently. This type of explosion is called a Supernova. This page provides a listing of the latest Supernova with reference images.
Brown Dwarfs - Articles and bibliographies on brown dwarfs (substellar objects).
Canada-France-Hawaii Telescope Corporation (CFHT) - Operates world class 3.6 meter telescope atop Mauna Kea, a dormant Hawaiian volcano 4,200 meters above the Pacific ocean. CFHT hosts unique instruments, such as MegaPrime, a wide-field high resolution CCD mosaic of 36 CCDs; CFHT-IR, an infra-red imager; PUEO, an adaptive optics bonette; MOS, the Multi Object Spectrograph; and, Gecko, a very high resolution spectrograph.
Deep Sky Database - A tool for amateur astronomers who love to pursue deep sky objects. Employs web-based version of the Saguaro Astronomy Club's database, consisting of over 10,000 records, allowing amateur astronomers to compile detailed and customized observing lists.
HEASARC - The HEASARC is a source of gamma-ray, X-ray, and extreme ultraviolet observations of cosmic (non-solar) sources. This site provides access to archival data, analysis software, documentation, educational and outreach material, as well as many general astronomical tools to obtain multiwaveband images of the sky and astronomical catalog searches.
Heaven's Above - Provides you with all the information you need to observe: satellites, Mir and the International Space Station, the Space Shuttle, the bright flares from Iridium satellites, and a wealth of other spaceflight and astronomical information.
Hubble Space Telescope (MAST) - The HST is an orbiting astronomical observatory operating from the near-infrared into the ultraviolet. Launched in 1990 and scheduled to operate through 2010, HST carries a wide variety of instruments producing imaging, spectrographic, astrometric, and photometric data through both pointed and parallel observing programs. Over 100 000 observations of more than 20 000 targets are available for retrieval from this archive.
Imagine the Universe - This site is intended for students age 14 and up, and for anyone interested in learning about our universe. A service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Nicholas White (Director), within the Laboratory for High Energy Astrophysics at NASA's Goddard Space Flight Center.
IRSA - The archive node for NASA's infrared and submillimeter astronomy projects and mission, providing archiving and datamining of infrared astronomy catalogs, including IRAS and 2MASS, and submillimeter.
Laser Interferometer Gravitational-Wave Observatory (LIGO) - Designed to open the field of gravitational-wave astrophysics through the direct detection of gravitational waves predicted by Einstein's General Theory of Relativity. LIGO's multi-kilometer-scale gravitational wave detectors use laser interferometry to measure the minute ripples in space-time caused by passing gravitational waves from cataclysmic cosmic sources such as the mergers of pairs of neutron stars or black holes, or by supernovae. LIGO consists of two widely separated interferometers within the United States -- one in Hanford, Washington and the other in Livingston, Louisiana -- operated in unison to detect gravitational waves.
Leonid Meteor Storms - NASA's Leonid Multi-Instrument Aircraft Campaign page. Information on Leonid meteor showers and missions.
Lund Observatory - The department of astronomy at Lund University in Lund, Sweden.
Multimission Archive at STScI (MAST) - MAST supports a variety of astronomical data archives, with the primary focus on scientifically related data sets in the optical, ultraviolet, and near-infrared parts of the spectrum. MAST is funded by NASA's Office of Space Science through a grant from NASA and other grants and contracts.
NASA Science - Researchers share the knowledge, excitement, and wonder of their latest scientific discoveries.
NASA Spitzer Space Telescope - Launched on August 25, 2003 from Florida's Cape Canaveral Air Force Base. Drifting in a unique Earth-trailing orbit around the Sun, Spitzer sees an optically invisible universe dominated by dust and stars.
NuSTAR - A NASA mission deploying the first focusing telescopes to image the sky in the high energy X-ray (6 - 79 keV) region of the electromagnetic spectrum. During a two-year primary mission phase, NuSTAR will map selected regions of the sky in order to:
Take a census of collapsed stars and black holes of different sizes by surveying regions surrounding the center of own Milky Way Galaxy and performing deep observations of the extragalactic sky;
Map recently-synthesized material in young supernova remnants to understand how stars explode and how elements are created; and
Understand what powers relativistic jets of particles from the most extreme active galaxies hosting supermassive black holes.
Parallax Project - Between 1910 and 1969, the Allegheny Observatory published 10 volumes of star parallax data and calculations collected and produced by researchers working at the Observatory. The published reports, known as the Publications of the Allegheny Observatory of the University of Pittsburgh, contain information that is of great value to astronomers. They contain tables of data, reports on methodology of astronomical observations, presentations of new modes of calculation of star positions, and descriptions of observational instrumentation. The tables in the volumes contain extensive documentation of the stellar magnitude, mean corrected terrestrial velocity, astronomical position, radial velocity, and brightness of many stars of importance to the current search for extra-solar planets.
Parkes Telescope - A radio telescope observatory, located 20 kilometres north of the town of Parkes, New South Wales, Australia. Also see Wikipedia.
physlink - A comprehensive physics and astronomy online education, research and reference web site.
Planetary Photojournal - Publicly released images from various Solar System exploration programs: Mercury, Venus, Earth, Moon, Mars, Jupiter, Saturn, Neptune, Uranus, Pluto.
Queen's University Astronomy Research Group - Fields of interest include solar system dynamics, star formation, the interstellar medium, galaxy structure and formation, extragalactic globular cluster systems, cosmology and general relativity.
Robert C. Byrd Green Bank Telescope (West Virginia) - The world's premiere single-dish radio telescope operating at meter to millimeter wavelengths. Its enormous 100-meter diameter collecting area, its unblocked aperture, and its excellent surface accuracy provide unprecedented sensitivity across the telescope's full 0.1 - 116 GHz (3.0m - 2.6mm) operating range. Also see Wikipedia.
Royal Observatory, Greenwich - USAF/NOAA Sunspot Data - Contains a large dataset based on daily sunspot observations compiled by the Royal Greenwich Observatory (RGO) between 1874 and 1976 and since then by the U.S. Air Force Solar Optical Observing Network (SOON).
Sedna (2003 VB12) - The coldest most distant place known in the solar system; possibly the first object in the long-hypothesized Oort cloud.
Sky Data in KML - You can now create KML files that display objects in the sky, such as stars, constellations, planets, the Earth's moon, and galaxies. This page explains how to create a KML file to display celestial data in Google Sky.
Sloan Digital Sky Survey (SDSS) - Ambitious astronomical survey will map in detail one-quarter of the entire sky, determining the positions and absolute brightnesses of more than 100 million celestial objects. It will also measure the distances to more than a million galaxies and quasars. Also seeSDSS Data Release 2.
Solar and Heliospheric Observatory (SOHO) - A being carried out by the European Space Agency (ESA) and the U.S. National Aeronautics and Space Administration (NASA) as a cooperative effort between the two agencies in the framework of the Solar Terrestrial Science Program (STSP) comprising SOHO and CLUSTER, and the International Solar-Terrestrial Physics Program (ISTP), with Geotail (ISAS-Japan), Wind, and Polar.
Sun and Moon Data for One Day - Obtain the times of sunrise, sunset, moonrise, moonset, transits of the Sun and Moon, and the beginning and end of civil twilight, along with information on the Moon's phase.
Supernova - One of the most energetic explosive events known is a supernova. These occur at the end of a star's lifetime, when its nuclear fuel is exhausted and it is no longer supported by the release of nuclear energy. If the star is particularly massive, then its core will collapse and in so doing will release a huge amount of energy. This will cause a blast wave that ejects the star's envelope into interstellar space. The result of the collapse may be, in some cases, a rapidly rotating neutron star that can be observed many years later as a radio pulsar.
Two Micron All Sky Survey at IPAC (2MASS) - 2MASS is uniformly scanning the entire sky in three near-infrared bands to detect and characterize point sources brighter than about 1 mJy in each band, with signal-to-noise ratio (SNR) greater than 10, using a pixel size of 2.0. This will achieve an 80,000-fold improvement in sensitivity relative to earlier surveys.
U.S. National Virtual Observatory (NVO) - A Rosetta Stone linking archival data sets of space- and ground-based observatories, catalogs of multi-wavelength surveys, and computational resources. NVO's astronomical and IT expertise includes data providers from space missions, ground-based telescopes, special surveys, and leading astronomical institutions throughout the country.
USGS Astrogeology Research Program: Map-a-Planet - Access global imagery of the planets and satellites from a variety of missions in an easy to use web interface. Customize and download your own image maps of the Moon, Mars, Venus, and other planets and moons.
Views of the Solar System - A vivid multimedia presentation of the Sun, planets, moons, comets, asteroids, and more. Discover the latest scientific information, or study the history of space exploration, rocketry, early astronauts, space missions, spacecraft through a vast archive of photographs, scientific facts, text, graphics and videos.
Visible Earth - NASA's searchable directory of images, visualizations and animations of Earth.
Wide-field Infrared Survey Explorer (WISE) - NASA's Wide-field Infrared Survey Explorer mapped the sky at 3.4, 4.6, 12, and 22 μm (W1, W2, W3, W4) in 2010 with an angular resolution of 6.1", 6.4", 6.5", & 12.0" in the four bands. WISE achieved 5σ point source sensitivities better than 0.08, 0.11, 1 and 6 mJy in unconfused regions on the ecliptic in the four bands. Sensitivity improves toward the ecliptic poles due to denser coverage and lower zodiacal background. NASA has released a new atlas and catalog of the entire infrared sky showing more than a half billion stars, galaxies and other objects captured by the Wide-field Infrared Survey Explorer (WISE) mission. For a collection of WISE images released to date visit the Multimedia Gallery.
Windows to the Universe - A richly interlinked ecosystem for learning about the Earth and Space sciences for use by the general public, students, and teachers.
Worlds of David Darling - Astrobiology, astronomy and spaceflight news, encyclopedia, and links. Maintained by science writer David Darling, Ph.D.
Worldwide Telescope (WWT) - Visualization software enabling your computer to function as a virtual telescope, bringing together imagery from the best ground and space-based telescopes in the world.
Your Sky - Interactive planetarium. You can produce maps for any time and date, viewpoint, and observing location. If you enter the orbital elements of an asteroid or comet, Your Sky will compute its current position and plot it on the map. Each map is accompanied by an ephemeris for the Sun, Moon, planets, and any tracked asteroid or comet.
KWSnet is an Internet subject directory providing special attention to U.S. national and international news, the arts, computing, culture, environment, law, literature, media, politics, science and technology. Based in San Francisco, California, KWSnet contains over 150,000 annotated links to resources worldwide. Use Search KWSnet, located at the top of each page, to search within this site. Use Ctrl-F (Windows) or ⌘-F (Mac) to search within individual pages.