... ESO, the European Southern Observatory . ... ESO Acronyms . ... TRAnsiting Planets and PlanetesImals Small Telescope . ... This artistтАЩs impression shows an event in the early history of the Solar System that may explain how the unusual asteroid Lutetia came to now be located in the main asteroid belt, between Mars and Jupiter. Lutetia is seen passing close to one of the very young rocky planets about four billion years ago and having its orbit drastically altered. ... Asteroid (21) Lutetia . ...

Astronomy Picture of the Day . Venus: Earth's Sister Planet . ... 15.08.1995 . ... Venus is very similar to Earth in size and mass - and so is sometimes referred to as Earth's sister planet - but Venus has a quite different climate. Venus' thick clouds and closeness to the Sun (only Mercury is closer) make it the hottest planet - much hotter than the Earth. ... Publications with keywords: Earth - Venus . Publications with words: Earth - Venus . ... Hurricane Paths on Planet Earth . ...

Asteroid 2004 MN4 was discovered on the 19th of June 2004 by Roy Tucker, David Tholen and Fabrizio Bernardi of the University of Hawaii Asteroid Survey from Kitt Peak Arizona. ... After a few days it was recognized that it would make several close approaches to Earth in the 21st century. ... These distances were calculated by the Near Earth Object Dynamic Site using data available up to 2005 February, to check for updates go to Near Earth Object Dynamic Site . ... PHA Close Approaches To The Earth . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Earth Satellites . ... According to Velikovsky, about 4000 years ago a giant volcano on Jupiter erupted and spewed a vast glob of debris into space, leaving the Great Red Spot behind as a permanent scar. The red hot lump ejected from Jupiter (referred to as a comet by Velikovsky) wandered into the inner Solar System, repeatedly crossing the Earth?s orbit and in fact often passing close to our helpless planet in the following millennia. ...

Today's APOD | ... APOD: 2004 May 16 - Venus: Earth's Cloudy Twin . Explanation: This picture by the Galileo spacecraft shows just how cloudy Venus is. ... Venus ' thick clouds and closeness to the Sun (only Mercury is closer) make it the hottest planet - much hotter than the Earth . ... More than 20 spacecraft have visited Venus including Venera 9 , which landed on the surface, and Magellan , which used radar to peer through the clouds and make a map of the surface . ... Index | ... About APOD | ...

... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Mars . ... An artificial comet holds secrets to Earths life . ... Comet to make close flyby of Red Planet in October 2014 . ... COMETS | ... Comet C/2013 A1 (Siding Spring) will make a close approach to Mars in October 2014. ... During the close Mars approach, the comet likely will achieve a total visual magnitude of 0 or brighter, as seen from Mars-based assets. ... Only registered members of Astronomy.com are allowed to comment on this article. ...