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1 .This is Scientific American 60-Second Space, I'm Clara Moskowitz.Got a minute?
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2 .High on a Chilean mountaintop, scientists have broken ground on what will be the world's largest telescope.
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3 .Called the European Extremely Large Telescope, or E-ELT,
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4 .the observatory may even be sensitive enough to spot signs of extraterrestrial life on alien planets, if there is any, of course.
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5 .The E-ELT's gigantic 39-meter wide primary mirror will capture 15 times more light than any existing optical telescope,
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6 .and its images should be 16 times sharper than the Hubble Space Telescope's.
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7 .That kind of view could reveal exoplanets changing color with the seasons, suggesting the presence of vegetation.
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8 .The scope might also reveal planetary atmospheres with chemicals consistent with life, such as oxygen, ozone, carbon dioxide and methane.
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9 .The European Southern Observatory is building the telescope.
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10 .On June 19th they blasted off the top of the Cerro Armazones mountain to create a plateau for the facility.
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11 .The 3,000 meter-high site offers incredibly clear skies with a minimum of atmosphere to distort the images.
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12 .The huge construction project is set to finish in 2023.
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13 .Then, just maybe, we'll catch a glimpse of the activities of any cosmic neighbors.
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14 .Thanks for the minute, for Scientific American 60-Second Space. I'm Clara Moskowitz.
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