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Chondrules in the chondrite classification Grassland. A millimeter scale is shown. Chondrules in the Carbonaceous Chondrite NWA 13887. A chondrule (from Ancient Greek χόνδρος chondros, grain) is a round grain found in a chondrite. Chondrules form as molten or partially molten droplets in space before being accreted to their parent asteroids.
Nebulus is a platform game created by John M. Phillips and published by Hewson Consultants in the late 1980s for home computer systems. International releases and ports were known by various other names: Castelian, Kyorochan Land (キョロちゃんランド, Kyorochan Rando), Subline, and Tower Toppler.
The visible-light (left) and infrared (right) views of the Trifid Nebula, a giant star-forming cloud of gas and dust located 5,400 light-years (1,700 pc) away in the constellation Sagittarius. Stars are thought to form inside giant clouds of cold molecular hydrogen—giant molecular clouds of roughly 300,000 M ☉ and 65 light-years (20 pc) in ...
Starflight 2: Trade Routes of the Cloud Nebula is a 1989 science fiction video game developed by Binary Systems and published by Electronic Arts as the sequel to the successful Starflight. It features a combination of space exploration , role-playing and strategy within a futuristic setting.
There are many indicators why some achondrites are deemed primitive. Some contain relic chondrules (e.g. Acapulcoite, Lodranite) and some have oxygen isotope ratios that are similar to chondrites. There are similarities in trace element concentrations between primitive achondrites and chondrites.
Type 2 chondrites are those that have experienced extensive aqueous alteration, but still contain recognizable chondrules as well as primary, unaltered olivine and/or pyroxene. The fine-grained matrix is generally fully hydrated and minerals inside chondrules may show variable degrees of hydration.
The southernmost part of the nebula complex Sh2-109, with the prominence of the dark nebula B147. The Cygnus Complex appears to be related to a large number of structures in which star formation phenomena are extremely intense and in which the dynamics of the interstellar medium are quite violent.
IC 11, Sh2-184, [3] Sharpless 184, [1] LBN 616, LBN 123.17-06.28, Pacman Nebula See also: Lists of nebulae NGC 281 , IC 11 or Sh2-184 is a bright emission nebula and part of an H II region in the northern constellation of Cassiopeia and is part of the Milky Way 's Perseus Spiral Arm .