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Dorsum Cushman
Dorsum Cushman is a wrinkle ridge at in Mare Fecunditatis on the Moon. It is 86 km long and was named after American micropaleontologist Joseph Augustine Cushman Joseph Augustine Cushman (January 31, 1881 – April 16, 1949) was an American geologist, paleontologist and foraminiferologist. Biography He was born on January 31, 1881 in Bridgewater, Massachusetts, the son of Darius and Jane (Fuller) Cushm ... in 1976. References {{moon-stub Cushman ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wrinkle Ridge
A wrinkle ridge is a type of feature commonly found on lunar maria, or basalt plains. These features are low, sinuous ridges formed on the mare surface that can extend for up to several hundred kilometers. Wrinkle ridges are tectonic features created after the lava cooled and solidified. They frequently outline ring structures buried within the mare, follow circular patterns outlining the mare, or intersect protruding peaks. They are sometimes called ''veins'' due to their resemblance to the veins that protrude from beneath the skin. Wrinkle ridges are named with the Latin designation ''dorsum'' (plural ''dorsa''). The standard IAU nomenclature uses the names of people (generally scientists) to identify wrinkle ridges on the Moon. For example, the Dorsa Burnet are named for Thomas Burnet, and the Dorsum Owen is named after George Owen of Henllys. Wrinkle ridges can also be found on Mars, for example in Chryse Planitia, on several of the asteroids that have been visited by sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mare Fecunditatis
Mare Fecunditatis (Latin ''fēcunditātis'', the "Sea of Fecundity" or "Sea of Fertility") is a lunar mare in the eastern half of the visible Moon. The mare has a maximum diameter of 840 km. __NOTOC__ Description The Fecunditatis basin formed in the Pre-Nectarian epoch, while the basin material surrounding the mare is of the subsequent Nectarian epoch. The mare material is of the Upper Imbrian epoch and is relatively thin compared to the neighboring Mare Crisium or Mare Tranquillitatis. This basin is overlapped with the Nectaris, Tranquillitatis, and Crisium basins. Fecunditatis basin meets Nectaris basin along Fecunditatis' western edge, with the area along this zone faulted by arcuated grabens. On the eastern edge of Fecunditatis is the crater Langrenus. Near the center lie the interesting craters Messier and Messier A. It was here that the first automated sample return took place via the Luna 16 probe, in September 1970. Sinus Successus lies along the eastern edge of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moon
The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of Australia). The Moon is a planetary-mass object with a differentiated rocky body, making it a satellite planet under the geophysical definitions of the term and larger than all known dwarf planets of the Solar System. It lacks any significant atmosphere, hydrosphere, or magnetic field. Its surface gravity is about one-sixth of Earth's at , with Jupiter's moon Io being the only satellite in the Solar System known to have a higher surface gravity and density. The Moon orbits Earth at an average distance of , or about 30 times Earth's diameter. Its gravitational influence is the main driver of Earth's tides and very slowly lengthens Earth's day. The Moon's orbit around Earth has a sidereal period of 27.3 days. During each synodic period ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Augustine Cushman
Joseph Augustine Cushman (January 31, 1881 – April 16, 1949) was an American geologist, paleontologist and foraminiferologist. Biography He was born on January 31, 1881 in Bridgewater, Massachusetts, the son of Darius and Jane (Fuller) Cushman. His primary education took place at Bridgewater Normal School, graduating in 1901. He was the captain and catcher for the baseball team along with fullback and manager for the football team. Later he was educated at Harvard University, where he received a B.S. in 1903, conferred magna cum laude. In October 1903, he married Alice Edna Wilson, with whom he had three children, Robert, Alice and Ruth, born in 1905, 1907 and 1910, respectively. He became a curator at the Boston Natural History Museum, working part-time so he could attend graduate school. He was awarded his Ph.D. from Harvard in 1909. His wife, Alice, died in January 1912; by September 1913, he had remarried to Frieda Gerlach Billings. In 1913 he became the director of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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