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18.95 ± 0.15 [10] 99942 Apophis ( provisional designation 2004 MN4) is a near-Earth asteroid and a potentially hazardous object with a diameter of 370 metres (1,210 feet) [3] that caused a brief period of concern in December 2004 when initial observations indicated a probability up to 2.7% that it would hit Earth on April 13, 2029.
Property damage. Over 7,200 [4] buildings damaged, collapsed factory roof, shattered windows, $33 million (2013 USD) lost [5] The Chelyabinsk meteor was a superbolide that entered Earth's atmosphere over the southern Ural region in Russia on 15 February 2013 at about 09:20 YEKT (03:20 UTC ).
No. Found date. 2000. TKW. 1003 kg. Related media on Wikimedia Commons. The Fukang meteorite is a meteorite that was found in the mountains near Fukang, China in 2000. It is a pallasite —a type of stony–iron meteorite with olivine crystals. It is estimated to be 4.5 billion years old.
The Decorah crater has been conjectured as being part of the Ordovician meteor event. [346] [ better source needed ] Several twin impacts have been proposed, such as the Rubielos de la Cérida and Azuara (30–40 Ma), [347] Cerro Jarau and Piratininga (c. 117 Ma), [73] and Warburton East and West (300–360 Ma). [348]
Pallasite. A slice of the Esquel pallasite, clearly showing the large olivine crystals suspended in the metal matrix. The pallasites are a class of stony–iron meteorite. They are relatively rare, and can be distinguished by the presence of large olivine crystal inclusions in the ferro-nickel matrix.
Meteorite weathering is the terrestrial alteration of a meteorite. Most meteorites date from the oldest times in the Solar System and are by far the oldest material available on our planet. Despite their age, they are vulnerable to the terrestrial environment. Water, chlorine and oxygen attack meteorites as soon as they reach the ground.
The Murchison meteorite is a meteorite that fell in Australia in 1969 near Murchison, Victoria. It belongs to the carbonaceous chondrite class, a group of meteorites rich in organic compounds. Due to its mass (over 100 kg or 220 lb) and the fact that it was an observed fall, the Murchison meteorite is one of the most studied of all meteorites. [2]
Meteorite. The 60- tonne, 2.7 m-long (8.9 ft) Hoba meteorite in Namibia is the largest known intact meteorite. [1] A meteorite is a rock that originated in outer space and has fallen to the surface of a planet or moon. When the original object enters the atmosphere, various factors such as friction, pressure, and chemical interactions with the ...