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v. t. e. Space debris (also known as space junk, space pollution, [1] space waste, space trash, space garbage, or cosmic debris [2]) are defunct human-made objects in space – principally in Earth orbit – which no longer serve a useful function. These include derelict spacecraft (nonfunctional spacecraft and abandoned launch vehicle stages ...
First full-disk "true color" [41] picture of the Earth; [42] subsequently used on the cover of the first Whole Earth Catalog. [43] [42] December 21, 1968. Apollo 8. First full-disk image of Earth from space taken by a person, probably by astronaut William Anders. [44] December 24, 1968.
The International Space Year (ISY) was 1992, the year of the quincentenary of Christopher Columbus's voyage to the Americas in 1492. First proposed by U.S. Senator Spark Matsunaga, the designation of 1992 as International Space Year was endorsed by 18 national and international space agencies, who also proposed the year's theme, "Mission to Planet Earth".
Quatermass and the Pit (US title: Five Million Years to Earth) is a 1967 British science fiction horror film from Hammer Film Productions. It is a sequel to the earlier Hammer films The Quatermass Xperiment and Quatermass 2. Like its predecessors, it is based on a BBC Television serial, in this case Quatermass and the Pit, written by Nigel Kneale.
v. t. e. Yuri Alekseyevich Gagarin [a] [b] (9 March 1934 – 27 March 1968) was a Soviet pilot and cosmonaut who, aboard the first successful crewed spaceflight, became the first human to journey into outer space. Travelling on Vostok 1, Gagarin completed one orbit of Earth on 12 April 1961, with his flight taking 108 minutes.
A space elevator is conceived as a cable fixed to the equator and reaching into space. A counterweight at the upper end keeps the center of mass well above geostationary orbit level. This produces enough upward centrifugal force from Earth's rotation to fully counter the downward gravity, keeping the cable upright and taut.
As of 2023, Voyager 1 is moving with a velocity of 61,198 kilometers per hour (38,027 mph), or 17 km/s, relative to the Sun, and is 24,211,500,000 kilometers (1.50443 × 10 10 mi) from the Sun reaching a distance of 161.844 AU (24.2 billion km; 15.0 billion mi) from Earth as of November 25, 2023.
Earth science. Earth science or geoscience includes all fields of natural science related to the planet Earth. [1] This is a branch of science dealing with the physical, chemical, and biological complex constitutions and synergistic linkages of Earth's four spheres: the biosphere, hydrosphere / cryosphere, atmosphere, and geosphere (or ...
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