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A wide field view of outer space as seen from Earth's surface at night. The interplanetary dust cloud is visible as the horizontal band of zodiacal light, including the false dawn [29] (edges) and gegenschein (center), which is visually crossed by the Milky Way. Outer space is the closest known approximation to a perfect vacuum.
Outer space (or simply space) is the expanse that exists beyond Earth's atmosphere and between celestial bodies.It contains ultra-low levels of particle densities, constituting a near-perfect vacuum of predominantly hydrogen and helium plasma, permeated by electromagnetic radiation, cosmic rays, neutrinos, magnetic fields and dust.
The first space rendezvous was accomplished by Gemini 6A and Gemini 7 in 1965.. Records and firsts in spaceflight are broadly divided into crewed and uncrewed categories. Records involving animal spaceflight have also been noted in earlier experimental flights, typically to establish the feasibility of sending humans to outer space.
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 .
In such statements, "reaching the edge of space" merely refers to going higher than average aeronautical vehicles commonly would. [11] [12] There is still no international legal definition of the demarcation between a country's air space and outer space. [13] In 1963, Andrew G. Haley discussed the Kármán line in his book Space Law and ...
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.
With colonization of space having been a critically discussed issue since the dawn of the space age, resulting in the Outer Space Treaty (1967), the flag was not to symbolize any territorial claims. [1] Space colonization (or extraterrestrial colonization) is the colonization of outer space and astronomical bodies.
The Outer Space Treaty represents the basic legal framework of international space law. According to the U.N. Office for Outer Space Affairs (UNOOSA), the core principles of the treaty are: [17] the exploration and use of outer space shall be carried out for the benefit and in the interests of all countries and shall be the province of all mankind;