QuinCunx

Nicolaus Copernicus - Heliocentric Solar System (Photo credit: Wikipedia ) The Copernican Model: A Sun-Centered Solar System :  "The Copernican Model: A Sun-Centered Solar System The Earth -centered Universe of Aristotle and Ptolemy held sway on Western thinking for almost 2000 years. Then, in the 16th century a new idea was proposed by the Polish astronomer Nicolai Copernicus (1473-1543)." Related articles Bern Simulation Helps Understand Origin Of Solar System Map of the inner solar system February 15, 2013 Perennial Perils of the Solar System [Page 3.14] On Nicolaus Copernicus' birthday, Google puts the sun at the centre of the universe

Venus transit of the Sun (Photo credit: MarkGregory007 ) Venus’s Transit Between Earth and Sun Will Be Last Until 2117 - NYTimes.com : " Look Now for Venus to Cross the Sun, or Wait Another Century" .. .ero . Related articles June 5-6 Is Your Last Chance (Ever) to See the Transit of Venus Venus not scheduled to make rare transit past the Sun again for 105 years Venus's Transit Between Earth and Sun Will Be Last Until 2117 Excitement Builds for Rare Transit of Venus on June 5 Last Transit of Venus for 105 Years Everything you need to know about next week's Transit of Venus (blogs.discovermagazine.com) The transit of Venus (phys.org) Why is the transit of Venus so rare? Why do transits of Venus happen twice in eight years, either in June or December, then not again for over 100 years? (thesciencebulletin.wordpress.com) Excitement Builds for Rare Transit of Venus on June 5 (livescience.com) Venus not scheduled to make rare...

Image via Wikipedia 'Two suns' spotted in China defy explanation - Technology & science - Space - Space.com - msnbc.com The double sun image is an effect of optical refraction, Kaler said, but it's a "pretty darn rare" one, and one not fully explained by science. Related articles 'Two suns' spotted in China defy explanation (fmiyar.com) China's 'Two Suns' Video Unexplained By Science (space.com) Refractive Index launched... (georgewigmore.wordpress.com) Will Betelgeuse Really Become a Second Sun in 2012? (space.com) Science struggles to explain China's "two suns" (holykaw.alltop.com)

Tropic of Capricorn - Science Definition : "Tropic of Capricorn The parallel of latitude approximately 23°27: south. It forms the boundary between the Torrid and South Temperate zones ." .. .ero . Related articles Marking the Winter Solstice of 2010 (amnh.org) "Astrology in December 2010 and January 2011 - A Sagittarius-Gemini Lunar Eclipse and Capricorn Solar Eclipse Are On The Way!" and related posts (aquariuspapers.com)