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Spaceflight (or space flight) is an application of astronautics to fly objects, usually spacecraft, into or through outer space, either with or without humans on board.Most spaceflight is uncrewed and conducted mainly with spacecraft such as satellites in orbit around Earth, but also includes space probes for flights beyond Earth orbit.
Operating Manual For Spaceship Earth is a short book by R. Buckminster Fuller, first published in 1969, following an address with a similar title given to the 50th annual convention of the American Planners Association in the Shoreham Hotel, Washington D.C., on 16 October 1967. [1] The book relates Earth to a spaceship flying through space.
It communicates through the NASA Deep Space Network (DSN) to receive routine commands and to transmit data to Earth. Real-time distance and velocity data are provided by NASA and JPL. [4] At a distance of 167.34 AU (25.0 billion km; 15.6 billion mi) from Earth as of February 2025, [4] it is the most distant human-made object from Earth. [5]
Space flight requires much higher velocities than ground or air transportation, and consequently requires the use of high energy density propellants for launch, and the dissipation of large amounts of energy, usually as heat, for safe reentry through the Earth's atmosphere.
In the Known Space universe, constructed by Larry Niven, Earth uses constant acceleration drives in the form of Bussard ramjets to help colonize the nearest planetary systems. In the non-known space novel A World Out of Time , Jerome Branch Corbell (for himself), "takes" a ramjet to the Galactic Center and back in 150 years ships time (most of ...
Atmospheric entry (sometimes listed as V impact or V entry) is the movement of an object from outer space into and through the gases of an atmosphere of a planet, dwarf planet, or natural satellite. Atmospheric entry may be uncontrolled entry, as in the entry of astronomical objects , space debris , or bolides .
The impact sent molten debris from Earth flying into space, which eventually came together in orbit around our world and cooled to form the moon. ... Rhoden and Denton both began working through ...
Through the late 20th century, France, the United Kingdom, Japan, and China were also working on projects to reach space. Following the end of the Space Race, spaceflight has been characterized by greater international cooperation, cheaper access to low Earth orbit and an expansion of commercial ventures.