User:RockRocksRocks
Hi, everyone.
Hübnerite is a mineral consisting of manganese tungsten oxide, with a chemical formula MnWO4. It typically occurs in association with high-temperature hydrothermal vein deposits and altered granites and in alluvial deposits. Hübnerite is the manganese endmember of the wolframite solid solution series, with ferberite (FeWO4) the opposite iron endmember. Color differences between members of the wolframite family are clear and marked, with the color of hübnerite varying from yellowish brown to reddish brown. It was first described in 1865 for an occurrence in the US state of Nevada and was named after the German mining engineer and metallurgist Adolf Hübner. This stacked image, composed of 38 individual photographs, shows red hübnerite crystals with quartz extracted from the Pasto Bueno mine in Pallasca Province, Peru.Photograph credit: Ivar Leidus
.jpg)
Stargazer is a Lockheed L-1011 TriStar built in 1974 that was modified in 1994 for use by Orbital Sciences (now part of Northrop Grumman) as a mother-ship launch pad for the Pegasus launch vehicle. As of October 2022, 45 rockets (containing nearly 100 satellites) have been launched from it, using the Pegasus-H and Pegasus-XL configurations. As of 2023, Stargazer is the only L-1011 airframe still airworthy. This photograph shows the aircraft in Orbital ATK livery with the Pegasus-XL rocket with eight Cyclone Global Navigation Satellite System spacecraft inside.Photograph credit: Lori Losey