Spaceflight
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orbital spaceflight (or orbital flight) is a spaceflight in which a spacecraft is placed on a trajectory where it could remain in space for at least one orbit. To do this around the Earth, it must be on a free trajectory which has an altitude at perigee (altitude at closest approach) above (this...
Adapted from the Wikipedia article History of spaceflight, under the G. N. U. Free Documentation License. Please also see http://en.wikipedia.org/wiki
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Spaceflight or space flight is the use of space technology to achieve the flight of spacecraft into and through outer space. Spaceflight is used in space exploration, and also in commercial activities like space tourism and satellite telecommunications. Additional non-commercial ...
orbital spaceflight (or orbital flight) is a spaceflight in which a spacecraft is placed on a trajectory where it could remain in space for at least one orbit. To do this around the Earth, it must be on a free ...
timeline of known spaceflights, both manned and unmanned, sorted chronologically by launch date. Owing to its large size, the timeline is split into smaller articles, one for each year since 1951. There is a separate list for all flights that ... Spaceflight osteopenia refers to the characteristic bone loss that occurs during spaceflight. Astronauts lose an average of more than 1% bone mass per month spent in space. There is concern that during long duration flights, excessive bone loss and the ...
Adapted from the Wikipedia article History of spaceflight, under the G. N. U. Free Documentation License. Please also see http://en.wikipedia.org/wiki
The internationally accepted definition of a spaceflight is any flight which crosses the Kármán line, 100 kilometres above sea level. The first recorded spaceflight launch of the year occurred on 11 January, when a Black Brant was launched on a ... Intergalactic travel involves spaceflight between galaxies, and is considered much more technologically demanding than even interstellar travel and, by current engineering terms, is considered science fiction.
In total, sixty nine orbital launches were made in 2008, with sixty seven reaching orbit, and two outright failures if the Iranian launch in August is counted. This is an increase of one orbital launch attempt on 2007, with two ... 2007 contained several significant events in spaceflight, including a Chinese ASAT test, the launches of the US Phoenix and Dawn missions to study Mars and Asteroid belt respectively, Japan’s Kaguya Lunar orbiter, and the first Chinese Lunar probe, Chang’e 1. ...
, Cambridge University Spaceflight has three projects which it is pursuing; all three are critical to the long-term goal of successfully launching a rocket into space and retrieving it. Nova Nova is CU Spaceflight’s first project and has the objective ...
The first human spaceflight was Vostok 1 on April 12, 1961, on which cosmonaut Yuri Gagarin of the USSR made one orbit around the Earth. In official Soviet documents, there is no mention of the fact that Gagarin parachuted the ...
Five spacecraft are currently leaving the Solar System on escape trajectories. The one farthest from the Sun is Voyager 1, which is more than 100 AU distant and is moving at 3.6 AU per year. In comparison Proxima Centauri, the ...
Reaching space The most commonly used definition of outer space is everything beyond the Kármán line, which is above the Earth’s surface. (The United States sometimes defines outer space as everything beyond in altitude.) In order for a projectile to ...
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