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Stories about: sediment

A Third of Mars May Have Been Water-Covered The data collected by the Gamma Ray Spectrometer (GRS) device installed aboard NASA’s Mars Odyssey probe helped the international group of experts who analyzed it reach the conclusion that the red planet may have been covered by an ocean in a proportion of about 33%. This result sheds new light on the decades l... 20 November 2008 06:36 GMT 8 Amazing Things About the Bottom of the Oceans 1. You may believe that Mount Everest is the tallest in the world, with its 8,848 m (29,450 ft) in altitude. Yet, it was proven that the volcano Mauna Loa from Hawaii is taller by 2,300 m (7,660 ft), if we measure it from its base on the bottom of the ocean. 2. The mapping of the oceanic bottom revealed oceans are ex... 18 January 2008 07:41 GMT Has the Tunguska Meteorite Been Found? On June 30, 1908, the biggest space impact that Earth suffered in modern times, known as the Tunguska event, took place in a remote Siberian area, destroying more than 2,000 sq km (770 square mi) of forest near the Tunguska River (central Siberia). The ball of fire that could have been a comet or asteroid, blasted a... 8 November 2007 04:45 GMT