Wikijunior:Solar System/Space exploration
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[edit] Space exploration — A long dream
Going in to space was always one of the biggest dreams people had, even thousands of years ago. Many science fiction authors had written about travelling in space even before the first airplane flight (in 1903). One of the most famous science fiction books is "From the Earth to the Moon" by Jules Verne — it was written in 1865, more then one hundred years before the first person walked on the moon.
[edit] The first exploration of space
Space begins about 100 km or 62 miles above the earth. In 1942, the German rocket A-4 became the first to reach that height, but it wasn't meant to do anything but fall straight down again and so wasn't terribly useful.
The Soviets were the first to put anything in space that would stay up: they launched the Sputnik 1 satellite on October 4, 1957. This event started the Space Race, a competition between the United States and the Soviet Union. Within a month, the Soviets launched Sputnik 2, and in that spacecraft was the first space traveller: a dog called Laika.
The Americans were very surprised that the Soviets could have launched 'Sputnik', and began to design rockets and satallites of their own. The two countries would compete for the next few decades .This was called 'Space Race'.
[edit] A man in Space
On April 12, 1961, the first person was sent into space: Yuri Gagarin, a Soviet, riding in the spacecraft Vostok 1. The Soviets would send more people into space over the next few decades, and so would the Americans, but it wouldn't be until 2003 that another country would launch a spacecraft with a person in it: China, with the Shenzhou 5.
[edit] The race to the moon
At the beginning of the 1960s, American president John F. Kennedy made a famous speech in which he said that the U.S. was going to send people to the moon within the next 10 years. And that's what happened: in 1969, Neil Armstrong became the first person to walk on the moon.
[edit] The Space Shuttle
After the Apollo program that sent people to the Moon, the U.S. built the Space Shuttle, that is like a jet-plane that can go to space and return! (With the help of rockets of course). The Space Shuttle helped construct the ISS (International Space Station) among another things.
The space shuttle will be retired in 2010, but it will be replaced with new vehicles that will take mankind to the Moon, Mars, and beyond!
[edit] Exploration beyond the Solar System
Many people dream of the day when humans can travel to another star and explore other worlds, some perhaps very similar to our own Earth. This, if it ever does happen probably won't happen for a very long time. The stars are so spread out that there are trillions of miles between stars that are "neighbors". Maybe one day, your great grandchildren will be standing atop an alien world wondering about their ancient ancestors?
