Solar System Archive
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A Rolling Stone on the Moon: Image of the Month
Posted on February 16, 2012 | 2 CommentsOnce, in complete silence, a large boulder rolled down a slope on the central peak of the MoonòÀÙs Schiller crater. This rock is about 9m (30ft) across, meaning that it […] -
To the Edge of Space
Posted on February 2, 2012 | 10 CommentsWhere does space begin? LetòÀÙs look up into our planetòÀÙs atmosphere, that shell of nitrogen (about 78%), oxygen (about 20%), various other gases (2%) that makes life on Earth possible, […] -
Venus: Earth’s Sister Planet
Posted on January 17, 2012 | 4 CommentsVenus has always been regarded as Earth’s Sister Planet. After all, it can be the closest planet to us and it is nearly the same size as Earth. But how […] -
Northern Lights: Coming to a Sky Near You?
Posted on January 13, 2012 | No CommentsThe aurora is a stunning celestial event associated with EarthòÀÙs polar regions. Recently Ireland has been witness to this beautiful phenomenon. If you are standing looking up at the […] -
Professor Moriarty: a Great but Forgotten Astronomer
Posted on December 15, 2011 | 4 CommentsJames Moriarty (?-1891) was one of the greatest of the many astronomer-mathematicians who flourished in the nineteenth century, however among the general public his scientific accomplishments are forgotten. Mention his […] -
Image of the Month: Helene
Posted on November 18, 2011 | No CommentsHelene is a tiny moon of Saturn that shares an orbit with the much larger moon Dione. Helene reposes at a gravitationally stable position called a Lagrange point. Helene orbits […] -
Haumea: Rugby Ball Planet
Posted on September 30, 2011 | 2 CommentsDwarf planet Haumea is one of the most bizarre small bodies of the outer Solar System. It has an oddly recent surface. Even just who discovered it is controversial. It […] -