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Hace 3 horas · Pluto (minor-planet designation: 134340 Pluto) is a dwarf planet in the Kuiper belt, a ring of bodies beyond the orbit of Neptune.It is the ninth-largest and tenth-most-massive known object to directly orbit the Sun.It is the largest known trans-Neptunian object by volume, by a small margin, but is less massive than Eris.Like other Kuiper belt objects, Pluto is made primarily of ice and rock ...
Hace 1 día · This circumstance is useful in isotope geology. Manganese-chromium isotope ratios reinforce the evidence from 26 Al and 107 Pd concerning the early history of the Solar System . Variations in 53 Cr/ 52 Cr and Mn/Cr ratios from several meteorites indicate an initial 53 Mn/ 55 Mn ratio that suggests Mn-Cr isotopic composition must result from in-situ decay of 53 Mn in differentiated planetary ...
Hace 1 día · San Diego–Tijuana is an international transborder agglomeration, [5] straddling the border of the adjacent North American coastal cities of San Diego, California, United States, and Tijuana, Baja California, Mexico.The 2020 population of the region was 5,456,577, making it the largest bi-national conurbation shared between the United States and Mexico, and the second-largest shared between ...
Hace 1 día · Composite satellite image of Antarctica (2002) Apollo 4 photograph with Antarctica at top, 1967 Antarctica (/ æ n ˈ t ɑːr k t ɪ k ə / ⓘ) [note 1] is Earth's southernmost and least-populated continent.Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean (also known as the Antarctic Ocean), it contains the geographic South Pole.
Hace 1 día · A mastodon (mastós 'breast' + odoús 'tooth') is a member of the genus Mammut (German for 'mammoth'), which, strictly defined, was endemic to North America and lived from the late Miocene to the early Holocene.Mastodons belong to the order Proboscidea, the same order as elephants and mammoths (which belong to the family Elephantidae). Mammut is the type genus of the extinct family Mammutidae ...
Hace 1 día · American Samoa[ c] is an unincorporated territory of the United States located in the Polynesia region of the South Pacific Ocean. Centered on 14.3°S 170.7°W, it is 40 miles (64 km) southeast of the island country of Samoa, east of the International Date Line and the Wallis and Futuna Islands, west of the Cook Islands, north of Tonga, and ...
Hace 1 día · Simi Valley (/ ˈ s iː m iː / ⓘ; Chumash: Shimiyi) [8] [9] [10] is a city in the valley of the same name in the southeast region of Ventura County, California, United States.Simi Valley is 40 miles (65 km) from Downtown Los Angeles, making it part of the Greater Los Angeles Area.The city borders Thousand Oaks, Moorpark, and the Chatsworth neighborhood of Los Angeles.