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European Astronomy Picture of the Day
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Extremely Large Telescope (ELT) | European Southern Observatory
The world's biggest eye on the sky under construction. Arriving in 2024!
Image: This infographic provides a basic breakdown of the ELT's structure, focusing particularly on the first-generation of instruments.
Extremely Large Telescopes are considered worldwide as one of the highest priorities in ground-based astronomy. They will vastly advance astrophysical knowledge, allowing detailed studies of subjects including planets around other stars, the first objects in the Universe, supermassive black holes, and the nature and distribution of the dark matter and dark energy which dominate the Universe.

Dubbed ELT for Extremely Large Telescope, this revolutionary new ground-based telescope concept will have a 39-meter main mirror and will be the largest optical/near-infrared telescope in the world: “the world’s biggest eye on the sky”.

The ELT will gather 100,000,000 times more light than the human eye, 8,000,000 times more than Galileo's telescope, and 26 times more than a single Very large Telescope (VLT). In fact, the ELT will gather more light than all of the existing 8–10-meter class telescopes on the planet, combined.

Since 2005, the European Southern Observatory (ESO) has been working with its community and industry to develop an extremely large optical/infrared telescopes.

The ELT program was approved in 2012 and green light for construction at Cerro Armazones in Chile's Atacama Desert was given at the end of 2014. The ELT is expected to see first light in 2024, and the instruments in 2025.

Learn more at: www.eso.org/public/teles-instr/elt/

Credit: European Southern Observatory
Release Date: May 17, 2017

+European Southern Observatory (ESO)
+American Astronomical Society
+National Optical Astronomy Observatory
+National Science Foundation

#ESO #Astronomy #Science #Space #Telescope #ELT #Optical #Infrared #Cosmos #Universe #BlackHoles #DarkEnergy #Astrophysics #Construction #CerroArmazones #Chile #Atacama #Desert #Instruments #Diagram #Infographic #STEM #Education
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