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10 facts about space & universe. This list contains ten facts you didn´t know about space and the universe. Do you know interesting, amazing, fascinating and mind blowing things about space | universe? Let us know in the comments... 10. The first woman in space was Valentina Tereshkova, a Soviet cosmonaut who flew aboard the Vostok 6 on June 16, 1963. 9. The first man in space was Yuri Gagarin, a Soviet cosmonaut who flew aboard the Vostok 1 on April 12, 1961. 8. The first animals to be sent into space were fruit flies in 1947. 7. The biggest star in our known universe is located in the constellation Cygnus, the Swan. It is a hyper giant that is almost a million times as big as the sun. 6. The oldest known star is the red giant HE 1523-0901. At 13.2 billion years old, it is almost as old as the universe itself. 5. It takes the sun around 200 million years to travel around our galaxy. This is a journey of 100,000 light years. 4. The universe began with the Big Bang, and is estimated to be approximately 13.7 billion years old (plus or minus 130 million years). 3. According to astronauts, space smells like seared steak, hot metal and welding fumes. 2. The Sun produces so much energy, that every second the core releases the equivalent of 100 billion nuclear bombs. 1. Scientists estimate that there may as many as 20 trillion galaxies in our universe. Listing 10 - Top 10 compilations : http://www.facebook.com/10Listing Music used: Aduro by Per Kiilstofte (Machinimasound.com) Licensed under Creative Commons CC-BY 3.0 Unported License | https://machinimasound.com/license Sound Effetcs: http://www.soundjay.com Top 10 lists all the time. Interesting, bizarre and amazing things | facts from around the world | planet earth. Subscribe now to see more top ten list videos. Thanks for watching! Video categories you can find on our youtube channel: animals & nature, crime, geography, history & people, computer & technology, science & education, games, music, myths & conspiracies, comedy & entertainment, sports, movies