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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 ...
Tektite. Two splash-form tektites, molten terrestrial ejecta from a meteorite impact. Tektites (from Ancient Greek τηκτός (tēktós) 'molten') are gravel -sized bodies composed of black, green, brown or grey natural glass formed from terrestrial debris ejected during meteorite impacts. The term was coined by Austrian geologist Franz ...
Martian meteorite NWA 7034, nicknamed "Black Beauty," weighs approximately 320 g (11 oz). [2] A Martian meteorite is a rock that formed on Mars, was ejected from the planet by an impact event, and traversed interplanetary space before landing on Earth as a meteorite. As of September 2020, 277 meteorites had been classified as Martian, less than ...
A chondrite / ˈkɒndraɪt / is a stony (non- metallic) meteorite that has not been modified, by either melting or differentiation of the parent body. [a][1] They are formed when various types of dust and small grains in the early Solar System accreted to form primitive asteroids. Some such bodies that are captured in the planet's gravity well ...
Shocked quartz is a form of quartz that has a microscopic structure that is different from normal quartz. Under intense pressure (but limited temperature), the crystalline structure of quartz is deformed along planes inside the crystal. These planes, which show up as lines under a microscope, are called planar deformation features (PDFs), or ...
WASHINGTON (Reuters) - Meteorites - rocks that fall to Earth from space - have pelted our planet from its birth about 4.5 billion years ago to today, often causing scant damage but sometimes ...
Muonionalusta meteorite. The Muonionalusta meteorite, on loan to the Prague National Museum in 2010. It is the largest meteorite ever exhibited in the Czech Republic. The Muonionalusta meteorite (Finnish pronunciation: [ˈmuo̯nionˌɑlustɑ], Swedish pronunciation: [mʉˈǒːnɪɔnalːɵsta]) [1] is a meteorite classified as fine octahedrite ...
The Willamette Meteorite, officially named Willamette[3] and originally known as Tomanowos by the Clackamas Chinook [4][5] Native American tribe, is an iron-nickel meteorite found in the U.S. state of Oregon. It is the largest meteorite found in the United States and the sixth largest in the world. [6][7] There was no impact crater at the ...