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2. 10 mind-blowing facts about space - AOL

   www.aol.com/news/10-mind-blowing-facts-space...

   We've collected some of the most amazing facts about space, so when you look up at the stars you can be ever more wowed by what you're looking at. 10 mind-blowing facts about space Skip to main ...

3. Space exploration - Wikipedia

   en.wikipedia.org/wiki/Space_exploration

   Aldrin held that reusable spacecraft were the key in making space travel affordable, stating that the use of "passenger space travel is a huge potential market big enough to justify the creation of reusable launch vehicles". [76] Space tourism is a next step in the use of reusable vehicles in the commercialization of space.

4. Space tourism - Wikipedia

   en.wikipedia.org/wiki/Space_tourism

   Space tourism is human space travel for recreational purposes. [1] There are several different types of space tourism, including orbital, suborbital and lunar space tourism. . Tourists are motivated by the possibility of viewing Earth from space, feeling weightlessness, experiencing extremely high speed and something unusual, and contributing to scie

5. 20 Cool Facts About Space We Bet You Didn’t Know

   www.aol.com/20-cool-facts-space-bet-210041339.html

   The post 20 Cool Facts About Space We Bet You Didn’t Know appeared first on Reader's Digest. Who knows, one day you might be able to actually visit! The post 20 Cool Facts About Space We Bet You ...

6. Discovery and exploration of the Solar System - Wikipedia

   en.wikipedia.org/wiki/Discovery_and_exploration...

   The first human being to reach space (defined as an altitude of over 100 km) and to orbit Earth was Yuri Gagarin, a Soviet cosmonaut who was launched in Vostok 1 on April 12, 1961. The first human to walk on the surface of another Solar System body was Neil Armstrong , who stepped onto the Moon on July 21, 1969 during the Apollo 11 mission ...

7. History of spaceflight - Wikipedia

   en.wikipedia.org/wiki/History_of_spaceflight

   In 1929, the Slovene officer Hermann Noordung was the first to imagine a complete space station in his book The Problem of Space Travel. [7] [8] The first rocket to reach space was a German V-2 rocket, on a vertical test flight in June 1944. [9]

8. Astronautics - Wikipedia

   en.wikipedia.org/wiki/Astronautics

   The early history of astronautics is theoretical: the fundamental mathematics of space travel was established by Isaac Newton in his 1687 treatise Philosophiæ Naturalis Principia Mathematica. [6] Other mathematicians, such as Swiss Leonhard Euler and Franco-Italian Joseph Louis Lagrange also made essential contributions in the 18th and 19th ...

9. Space travel - Wikipedia

   en.wikipedia.org/wiki/Space_travel

   Space travel can refer to: Spaceflight, flying into or through outer space; Spacefaring, to be capable of and active in space travel; Human spaceflight, space travel with a crew or passengers; Interplanetary spaceflight, travel between planets; Interstellar travel, travel between stars or planetary systems