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A graphical representation of the expansion of the universe from the Big Bang to the present day, with the inflationary epoch represented as the dramatic expansion seen on the left. This visualization shows only a section of the universe; the empty space outside the diagram should not be taken to represent empty space outside the universe ...
The Big Bang is a physical theory that describes how the universe expanded from an initial state of high density and temperature. [1] The concept of an expanding universe was scientifically originated by physicist Alexander Friedmann in 1922 with the mathematical derivation of the Friedmann equations.
First space walk/extra-vehicular activity (Alexei Leonov). USSR Voskhod 2: March 1965: First crewed spacecraft to change orbit. USA (NASA) Gemini 3: 14 July 1965: First flyby of Mars (returned pictures). USA (NASA) Mariner 4 [18] 14 July 1965: First photographs of another planet from deep space . USA (NASA) Mariner 4 [18] 26 November 1965
Space exploration also gives scientists the ability to perform experiments in other settings and expand humanity's knowledge. [67] Another claim is that space exploration is a necessity to humankind and that staying on Earth will eventually lead to extinction. Some of the reasons are lack of natural resources, comets, nuclear war, and worldwide ...
Space launch vehicle imagined on a Gobelins tapestry, ordered by Colbert and drawn by Le Brun, 1664.. Space travel has long been a significant ambition in French culture.From the Gobelins' 1664 tapestry representing a space rocket, [1] to Jules Verne's 1865 novel From the Earth to the Moon and George Méliès' 1902 film A Trip to the Moon, space and rocketry were present in French society long ...
Space colonization has been in a broad sense referred to as space settlement, space humanization or space habitation. [16] Space colonization in a narrow sense refers to space settlements, as envisioned by Gerard K. O'Neill. [17] It is characterized by elements such as: settlement and exploitation, [18] as well as territorial claim. [19]
In physical cosmology, cosmic inflation, cosmological inflation, or just inflation, is a theory of exponential expansion of space in the very early universe.Following the inflationary period, the universe continued to expand, but at a slower rate.
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