Portal:Astronomy
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Astronomy (Greek: αστρονομία = άστρον + νόμος, astronomia = astron + nomos, literally "law of the stars") is the study of the evolution and physical and chemical properties of celestial objects. Astronomical observations are not only relevant for astronomy as such, but provide essential information for the verification of fundamental theories in physics, such as the general relativity theory. Complementary to observational astronomy, theoretical astrophysics seeks to explain astronomical phenomena.
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Portal:Astronomy/Featured/August 2008 {{Wikipedia:Wikiportal/box-footer | }}
...that Astronomische Nachrichten, founded by H. C. Schumacher (pictured) in 1821, is the world's oldest extant astronomical journal?
...that the Stingray Nebula, thought to have formed around 1987, is the youngest known planetary nebula?
...that the Mark II radio telescope built in 1964 at Jodrell Bank Observatory, UK was the first ever telescope to be controlled by a digital computer?
...that Comet Shoemaker-Levy 9 passed within Jupiter's Roche limit in 1992, causing it to break up into smaller pieces two years before it collided with the planet?
...that the Kaidun meteorite fell on March 12, 1980 on a Soviet military base in Yemen and may be from Phobos?
...that Pluto is now considered the largest member of the Kuiper belt after its retirement as the 9th planet? {{Wikipedia:Wikiportal/box-footer | }}
Astronomy : Archaeoastronomy - Astrophysics - Calendars - Catalogues - Celestial coordinate system - Celestial mechanics - Cosmology - Images - Large-scale structure of the cosmos - Observatories - Planetary science - Telescopes
Biographies : Astronomers - Astrophysicists - Other people
Astronomical objects : Lists - Galaxies - Nebulae - Planets - Stars
Space exploration : Human spaceflight - Satellites - SETI - Spacecraft {{Wikipedia:Wikiportal/box-footer | }}
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Portal:Astronomy/Picture/Week 35 2008 {{Wikipedia:Wikiportal/box-footer | More featured pictures }}
- 2 February 2008: NASA to Beam Beatles Song into Deep Space
- 14 January 2008: NASA Spacecraft to Begin Collecting Data on Mercury
- 8 January 2008: Sun begins Solar Cycle 24
- 28 December 2007: Astronomers say asteroid could hit Mars
- 13 December 2007: Saturn's rings are much older than previously thought
- 2 December 2007: Venus was once more Earth-like than previously thought
- 27 October 2007: Unexpected comet 'outburst' could be visible for weeks
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- All times UT unless otherwise specified.
Portal:Astronomy/Events/August 2008 {{Wikipedia:Wikiportal/box-footer | See events in 2006, 2007, 2008 }}
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Here are some Open Tasks :
Astronomy featured article candidates: Astronomy articles for which peer review has been requested: |
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These books may be in various stages of development. See also the related Science and Mathematics bookshelves.
Wikijunior
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