At 9,993 feet up, high on Cerro Armazones in the Atacama Desert of Chile, the foundation for the Extremely Large Telescope is being laid. The ELT, a project from the European Southern Observatory, ...

There are a lot of moving pieces when it comes to building the world's largest telescope.

This artist’s rendering shows the Extremely Large Telescope in operation on Cerro Armazones in northern Chile. The telescope is shown using lasers to create artificial stars high in the atmosphere.

In life exploration to find out whether there is life on a distant planet, whether the planet has an atmosphere and its atmospheric composition are important clues, but it is very difficult to observe ...

The E-ELT will be a 39-metre aperture optical and infrared telescope sited on Cerro Armazones in the Chilean Atacama Desert, 20 kilometres from ESO's Very Large Telescope on Cerro Paranal. It will be ...

Construction has finally begun on the European Extremely Large Telescope (E-ELT), with the first stone laid in a ceremony last week. Being built by the European Southern Observatory (ESO) on the 3,046 ...

The unique optical system of ESO's Extremely Large Telescope consists of five mirrors, each of which represents its own significant engineering challenge. The 39-metre-diameter primary mirror, which ...

Following a traditional “first stone” ceremony attended by the Chilean president Michelle Bachelet Jeria, and a mountain-top connection to the country’s electrical grid, construction of the European ...