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Astronomy (Greek: αστρονομία = άστρον + νόμος, astronomia = astron + nomos, literally, "law of the stars") is the science of celestial objects (e.g., stars, planets, comets, and galaxies) and phenomena that originate outside the Earth's atmosphere (e.g., auroras and cosmic background radiation). It is concerned with the evolution, physics, chemistry, and motion of celestial objects as well as the formation and development of the universe. Astronomical observations can be used to test fundamental theories in physics, such as general relativity. Theoretical astrophysics complements observational astronomy in that it seeks to explain astronomical phenomena.
Astronomy is one of the oldest sciences. Astronomers of ancient Greece practiced a scientific methodology, and advanced observation techniques may have been known much earlier (see archaeoastronomy). Historically, amateur astronomers have contributed to many important astronomical discoveries, and astronomy is one of the few sciences where amateurs can still play an active role, especially in the discovery and observation of transient phenomena.
Modern astronomy is not to be confused with astrology, the belief system that claims human affairs are correlated with the positions of celestial objects. Although the two fields share a common origin, they are fundamentally different: astronomers employ the scientific method, whereas astrologers do not.
More on [ Astronomy ]
Astronomy and Space :: Science
Astronomy, Alternative :: Anomalies and Alternative Science
Physics :: Science
Space :: Technology
NASA Launches Mission To Track Polar Ice By Plane
Fri, 30 Oct 2009 00:24:00 -0400
Climate scientists are about to lose a satellite that helped show how global warming affects the Earth's polar ice caps. A replacement won't be in orbit until at least 2015, so NASA will use a DC-8 aircraft instead to track whether the process of melting and subsequent sea-level rise is accelerating.
Astronomers Detect Most Distant Object Ever Seen
Thu, 29 Oct 2009 00:01:00 -0400
Light from a star that died when the universe was about 600 million years old is only now reaching Earth. The gamma ray burst is 13.1 billion light-years away, and astronomers say it's the most distant object ever seen from Earth.
NASA Experimental Rocket Launch A Success
Wed, 28 Oct 2009 16:00:00 -0400
The unmanned Ares I-X made a spectacular debut as it soared into the sky Wednesday. This next generation manned space vehicle is set to be ready in 2015, but some question the future of the program.
NASA's New Rocket Lifts Off On Short Test Flight
Wed, 28 Oct 2009 11:38:00 -0400
After a one-day weather delay, the Ares I-X rocket rumbled away from a former shuttle launchpad Wednesday morning at Florida's Kennedy Space Center. It's the first step in NASA's effort to return astronauts to the moon.
Weather Interferes With NASA Test Flight
Tue, 27 Oct 2009 06:05:00 -0400
The prototype of a new manned spacecraft was scheduled to launch Tuesday morning from the Kennedy Space Center, but weather delayed the unmanned test flight. The rocket is intended to carry astronauts into orbit after the aging space shuttles are retired.
NASA To Launch World's Tallest Rocket
Mon, 26 Oct 2009 16:00:00 -0400
The prototype of a new manned spacecraft is scheduled to launch Tuesday morning from the Kennedy Space Center. But a White House panel of experts recently raised doubts as to whether the Ares I-X is right for the job.
Mysteries in Astronomy and Space Science - Article briefly discussing 21 topics.
Absolute Astronomy - Facts and statistical information about planets, moons, constellations, stars, galaxies, and Messier objects.
Meta Description: [ General facts and statistical information about planets, moons, constellations, stars, galaxies, and Messier objects. ]
An Atlas of the Universe - Contains 3D maps of the universe zooming out from the nearest stars to the scale of the galaxy and out to the surrounding superclusters and finally to the scale of the known universe.
Meta Description: [ Contains maps of the universe zooming out from the nearest stars to the entire visible universe. ]
Astronomical Applications Department, U.S. Naval Observatory - Computes the position, brightness, and other observable characteristics of celestial bodies, as well as the circumstances of astronomical phenomena. Includes information on calendars and related topics.
Meta Description: [ The Astronomical Applications Departmentof the U.S. Naval Observatory computes, from fundamental astronomicalreference data, the position, brightness, and other observablecharacteristics of celestial bodies, as well as the circumstancesof astronomical phenomena. This information is of criticalim... ]
Astronomical Pseudo-Science: A Skeptic's Resource List - List of links for those, who want to examine theories that are on the fringe of accepted scientific thought that are related connected to astronomy. A few examples are astrology, UFO's, the Face on Mars, and ancient astronaut theory.
Meta Description: [ The Astronomical Society of the Pacific is an international nonprofit scientific and educational organization founded in 1889 that works to increase understanding and appreciation of astronomy. ]
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Astronomy Education and Outreach - General astronomy tutorial, education links, web courses, documents at the UCSD Center for Astrophysics and Space Sciences.
Meta Description: [ Gene Smith's Astronomy Tutorial -
an introductory tutorial in Astronomy with links to sites for public
information and astronomy/science education ]
Astronomy Facts and Trivia - Fun facts and trivia relating to astronomy, space, science fiction movies. Most trivia items are submitted by users.
Meta Description: [ Astronomy trivia questions and quizzes ]
Astronomy for All - Index with graphics and illustrations about stars, the Solar System, cosmology and Galileo.
Astronomy Forum - Message board.
Meta Description: [ Astronomy, Great Books Forums ]
Astronomy Net - Resources, searchable forums and searchable lists of organizations providing astronomy services.
Meta Description: [ The Astronomy Net contains articles, forums, clubs, vendors, manufacturers and other resources important to those interested in Astronomy. ]
Astronomy Online - Gives overview of the solar system, the Milky Way galaxy, extrasolar planets, cosmology and astrophotography. Includes images, additional resources, and forums.
Meta Description: [ Astronomy Information and Resources ]
Astronomy Today - Information and articles on astronomy, space and related topics. Also features a friendly forum and a telescope buyer's FAQ page.
Meta Description: [ Information and articles on astronomy, space and related topics. Also featuring a friendly forum and a monthly sky guide. ]
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AstroWeb - Astronomical Internet resources by the Space Telescope Science Institute.
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Australia Astro Site - Extensive resources for astronomy.
Meta Description: [ The VK2THN Homepage also known as the Australia Astro Site is the homepage of Paul Titze
VK2THN [HACK.AU.] and is a personal gateway to the Net. It is also a resource for anyone to use. ]
Eric Weisstein's World of Astronomy - A web encyclopedia. Over 500 entries, ranging from definitions to full articles.
Meta Description: [ Eric Weisstein's World of Astronomy ]
Infrared Astronomy - All about infrared astronomy from NASA's infrared astronomy center: Discovery of infrared, what is infrared and infrared astronomy, history, the infrared universe, gallery, activities, discoveries, missions and a lot of links to IR astronomy sites.
Logarithmic Maps of the Universe - Show universe in terms of distance from Earth center. Includes such things as satellites, planets, stars, nebulae, and galaxies, out to cosmic microwave background radiation from the Big Bang.
Stars and Planets - Information about interesting stars and planets in our galaxy, as well as astral bodies outside the Milky Way. Includes photos.
Meta Description: [ Informations about the most interesting stars in our galaxy and beyond, about our solar system and other galaxies. ]
The Naming of Stars - Leaflet from Royal Greenwich Observatory.
Astron J e-First Articles - Astron J e-First Articles
NPR Topics: Space - Space
USATODAY.com Science and Space - Top Stories - USATODAY.com Science and Space - Top Stories
USATODAY.com Science and Space - Top Stories - USATODAY.com Science and Space - Top Stories
USATODAY.com Science and Space - Top Stories - USATODAY.com Science and Space - Top Stories
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