The European Southern Observatory began construction of the European-Extremely Large Telescope (E-ELT) back in 2014. This telescope is on track to be the world’s largest optical and infrared telescope by the time it is completed in 2024, thus living up to its name. The E-ELT will include a main mirror that is 128 feet in diameter, beating out some of its competitors, such as the Giant Magellan Telescope and the Thirty Meter Telescope, which boast main mirrors that are 82 feet and 98 feet in diameter respectively. This telescope will be able to capture images 16 times sharper than images captured by the Hubble Space Telescope.
The E-ELT will be used to study exoplanets, dark matter, supermassive black holes, galaxy formation in the early universe, and much more. Observations from this telescope may be able to answer questions such as if the laws of nature really are universal, and we may be able to learn more about stellar populations at distances of tens of millions of light-years away from us. The E-ELT will be operating in northern Chile’s Atacama Desert, an ideal location for astronomical observation due to the dryness of the air and the clarity of the night sky. However, Chile, like most other locations in the world, still suffers from light pollution, so efforts to limit blue light emissions and luminous signs have come about.
Astronomers hope the E-ELT will be in use for at least 30 years. At a price of $1.4 billion, I would sure hope so. The more technology advances, the more we will be able to learn about our universe. The farther distances we will be able to look out to, and the more we will be able to essentially look back in time. I’m excited for the astronomical discoveries bound to emerge. However, given the fact that we have just over six and a half years left until the E-ELT’s first light, we’ll just have to be patient for now!