Two months ago, On October the 5th, NASA's Cassini probe came as close as 25 km from the surface of Saturn's small moon, allowing it to capture a new set of images that sparked new interest in Earth's scientists. These photos indicated that the southern polar surface of the geologically active moon fea... |
16 December 2008
11:34 GMT |
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Undersea hydrothermal vents can be the most ancient ecosystems on Earth. They may have existed ever since the beginning of life on Earth and before the emergence of photosynthesis. The food chains of the hot vents are not based on solar light but on the chemical energy stored by sulphur metabolizing bacteria, which a... |
18 May 2007
05:14 GMT |
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There are spectacular geysers on Earth associated with the volcanic activity, but they are rather places of death. In change, their submarine counterparts, the seafloor vents, can harbor one of the most flourishing and odd ecosystems in the sea bed, based on the food provided by sulphuric bacteria.They were first dis... |
17 April 2007
08:42 GMT |
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In places where the Earth's tectonic plates collide or diverge, volcanoes appear. Volcanoes can be terrestrial or submarine. There can be submarine volcanoes, which erupt periodically, but also phenomena similar to others that accompany terrestrial volcanoes, like submarine correspondent of the geysers, named hy... |
13 March 2007
12:08 GMT |
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