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Outer space. A view of the boundary between outer space and Earth, roughly where the yellow-green line of airglow is visible, as viewed from the International Space Station (ISS). Outer space (or simply space) is the expanse beyond celestial bodies and their atmospheres. It contains ultra-low levels of particle densities, constituting a near ...
Space exploration is the use of astronomy and space technology to explore outer space. [1] While the exploration of space is currently carried out mainly by astronomers with telescopes, its physical exploration is conducted both by uncrewed robotic space probes and human spaceflight. Space exploration, like its classical form astronomy, is one ...
List of topics in space; topics as related to outer space. Accidents in space; Animals in space; Architecture in space; Batteries in space; Christmas in space; Corrosion in space; Death in space; Dogs in space; Dust in space; Economy in space (Mining in space) Garbage in space; Humans in space; Hygiene in space; Industry in space; Locomotion in ...
t. e. A spacecraft is a vehicle that is designed to fly in outer space and operate there. Spacecraft are used for a variety of purposes, including communications, Earth observation, meteorology, navigation, space colonization, planetary exploration, and transportation of humans and cargo.
The future of space exploration involves both telescopic exploration and the physical exploration of space by robotic spacecraft and human spaceflight . Near-term physical exploration missions, focused on obtaining new information about the Solar System, are planned and announced by both national and private organisations.
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.
The outer boundary of the heliosheath is called the heliopause. This is the region where the Sun's influence begins to decrease and interstellar space can be detected. Voyager 1 is escaping the Solar System at the speed of 3.6 AU per year 35° north of the ecliptic in the general direction of the solar apex in Hercules , while Voyager 2 ' s ...
A list of previous and upcoming missions to the outer Solar System (including Saturn) can be found at the List of missions to the outer planets article. Flybys Pioneer 11 flyby Pioneer 11 image of Saturn. Saturn was first visited by Pioneer 11 in September 1979. It flew within 20,000 kilometres (12,000 mi) of the top of the planet's cloud layer.
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