Presentation on theme: "Space An Introduction. Space Exploration Space Exploration: is the use of astronomy and space technology to explore outer space.astronomyspace technologyouter."— Presentation transcript:
Space Exploration Space Exploration: is the use of astronomy and space technology to explore outer space.astronomyspace technologyouter space Physical exploration of space is conducted both by human spaceflights and by robotic spacecraft.human spaceflightsrobotic spacecraft Astronomy, or the observation of objects in space set the stage for exploration, it was the development of large liquid-fueled rocket engines during the early 20th century however, that allowed physical space exploration to become a reality.
Rationale for Space Exploration Common rationales for exploring space include: advancing scientific research Uniting the world ensuring the future survival of humanity developing military and strategic advantages against other countries.
Historical Background 1 st space advances were made by German scientists during WWII while testing the V2 rocket After the war, the Allies used German scientists & research to continue space research Early exploration was driven by a “space race” between the USSR & the U.S. in the Cold War
Space Race Cold War Tension between the U.S. & Soviet Union Each country wanted to prove their dominance in anything & everything… including space This led to competition between the two countries in space which became known as the Space Race A dangerous technological gap between the U.S. & USSR
Space Race Soviet UnionU.S. Launch Sputnik Oct. 4, 1957 1 st man-made object to orbit Earth Soviet 1 st ’s (led early) 1 st living being in orbit 1957 1 st human space flight (Yuri Gagarin aboard Vostok 1) 1961 1 st spacewalk (Aleksei Leonov) 1965 1 st automatic landing on another celestial body in 1966 1 st space station (Salyut 1) in 1971 1 st scientific exploration from space = cosmic radiation experiment on a V2 rocket 5-10-1946 1 st images of Earth taken from space followed the same year 1 st animal experiment saw fruit flies lifted into space in 1947 1 st moon landing by Apollo 11 on July 20, 1969
Yuri Gagarin – April 12, 1961 Russia The spacecraft completed one orbit around the globe, lasting about 1 hour and 48 minutes. Gagarin's flight resonated around the world; it was a demonstration of the advanced Soviet space program & it opened an entirely new era in space exploration: human spaceflight
Alan Shepard The U.S. first launched a person into space with Shepard’s suborbital flight.
John Glenn Orbital flight was achieved by the U.S. when John Glenn orbited the Earth on February 20, 1962.
Buzz Aldrin & Neil Armstrong 1 st men on the moon.
NASA U.S. agency responsible for the nation's public space program Established by the National Aeronautics & Space Act in 1958 A year after the Soviet’s launched Sputnik NASA has led U.S. efforts for space exploration ever since, resulting in the Apollo missions to the Moon, the Skylab space station, and later the Space Shuttle
Varying Viewpoints Regarding Space Exploration The Pros International cooperation Biological research benefits entire human race Human achievement Future colonization and tourism The Cons Too costly Environmental waste (space junk) Problems on Earth need to be fixed first Too dangerous
Should These Programs Continue? NASA's 2007 budget was $16.25 billion. Let's put this amount in perspective: The department of defense budget in 2007 was $609 billion. The department of homeland security 2007 budget was $652 billion. The national budget in 2007 was $2,784 billion. The amount of this budget spent on NASA was 0.58%. A B-2 stealth bomber costs taxpayers $2.2 billion. The New Horizons mission to explore the dwarf planet Pluto will cost $650 million.
Task Force Questions Political Issues: 1. Who do you think owns space? 2. Who should determine what goes on in space? Why? Finance/Cultural: 3. Is it right to spend tax dollars on space? Why/why not? 4. Do we have the right to alter materials in space to meet our needs? Explain. Environmental Issues: 5. Who do you think should be responsible for protecting space environments from alteration by humans? Why? 6. Who is responsible for cleaning up space junk? Why? Safety Issues: 7. Who should be responsible for injuries caused to astronauts? Why? 8. Should safety of astronauts (as well as people on Earth) be a primary concern in space exploration? Why?