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Continuing from the previous article, the development history of the telescope (2):
In 2001, the European Southern Observatory in Chile completed the "Very Large Telescope" (VLT), which is composed of 4 telescopes with an aperture of 8 meters, and its light-gathering capacity is equivalent to that of a 16-meter reflecting telescope.
On June 18, 2014, Chile will level the summit of Cerro Amazones to house the world’s most powerful telescope, the European Extra Large Astronomical Telescope (E-ELT). Cerro Amazon is located in the Atacama desert, 3000 meters above sea level.
E-ELT, also known as "the world's largest eye in the sky", is nearly 40 meters wide and weighs about 2500 tons. Its brightness is 15 times higher than that of existing telescopes, and its clarity is 16 times that of Hubble. The telescope cost 879 million pounds (about 9.3 billion yuan) and is expected to be officially put into use in 2022.
A group of telescopes under construction have begun to attack the white giant brothers on Mauna Kea again. These new competition participants include the 30-meter Thirty Meter Telescope (TMT), the 20-meter Giant Magellan Telescope (GMT) and the 100-meter Great Telescope ( Overwhelming Large Telescope, OWL for short). Their proponents pointed out that these new telescopes can not only provide images of space with far better image quality than Hubble telescope photos, but also collect more light, which is important for the initial state of stars and cosmic gas when galaxies formed 10 billion years ago. Learn more about the situation and see the planets around distant stars clearly.
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