Construction on the world's largest optical telescope began with a bang last Thursday, as workers demolished a hilltop in Chile's Atacama desert. The European Extremely Large Telescope (E-ELT) telescope, being built by the European Southern Observatory, aims to give astronomers new insight into the origins of the universe and help search for potentially habitable planets elsewhere in the galaxy.
Currently, "we have no proof of the existence of an Earth-like planet at the same distance from the sun in our galactic neighborhood," said astronomer Fernando Comeron, ESO's representative in Chile. "That's not because they don't exist but because we didn't yet have the tools to detect them. "With the E-ELT, we can." Construction will take an estimated 10 years, and the telescope will be put into service two years later. The newly flat surface will support the foundation of the telescope, with an "eye" - a main mirror - of 39 meters (128 feet) in diameter.
The new telescope's light-collecting surface "will be 10 to 15 times greater than those of existing telescopes," Comeron said. Thanks to its dry and cold climate, and the lack of light pollution from cities in the remote region, Chile's Atacama desert provides an ideal location for astronomical research.
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