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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.
The Double Asteroid Redirection Test (DART) was a NASA space mission aimed at testing a method of planetary defense against near-Earth objects (NEOs). [ 4 ] [ 5 ] It was designed to assess how much a spacecraft impact deflects an asteroid through its transfer of momentum when hitting the asteroid head-on. [ 6 ]
Meteoritics [note 1] is the science that deals with meteors, meteorites, and meteoroids. [ note 2 ] [ 2 ] [ 3 ] It is closely connected to cosmochemistry , mineralogy and geochemistry . A specialist who studies meteoritics is known as a meteoriticist .
The Charlottetown meteorite was a meteorite fall observed on July 25, 2024. It is notable as the first meteorite known with video and audio of the impact recorded and as the only known meteorite fall in Prince Edward Island, Canada. [2] The Charlottetown meteorite is classified as H5 ordinary chondrite. [1]
Fossil meteorite – a meteorite that was buried under layers of sediment before the start of the Quaternary period. Some or all of the original cosmic material has been replaced by diagenetic minerals. [3]: 320 (It is, however, not a fossil). Fusion crust – a coating on meteorites that forms during their passage through the atmosphere.
The Buseck Center for Meteorite Studies was founded in 1960, on the Tempe Campus of Arizona State University, and houses the world's largest university-based meteorite collection. The collection contains specimens from over 1,600 separate meteorite falls and finds, and is actively used internationally for planetary, geological and space science ...
Meteorites are often studied as part of cosmochemistry. Cosmochemistry (from Ancient Greek κόσμος (kósmos) ' universe ' and χημεία (khēmeía) ' chemistry ') or chemical cosmology is the study of the chemical composition of matter in the universe and the processes that led to those compositions. [1]
Widmanstätten pattern in the Staunton meteorite [i] In 1808, these figures were observed by Count Alois von Beckh Widmanstätten, the director of the Imperial Porcelain works in Vienna. While flame heating iron meteorites, [4] Widmanstätten noticed color and luster zone differentiation as the various iron alloys oxidized at different rates ...