The European Southern Observatory's (ESO) Extremely Large Telescope (ELT) — the world's largest visible- and infrared-light telescope — is currently under development on the Cerro Armazones mountain ...

Very Large Telescope (VLT). VLT, which cost some $350 million to build in the 1990s ($840 million in today's dollars), is one of the world's most sensitive sky-watching instruments, capable of ...

Webb can see very distant galaxies thanks to its huge primary mirror, which is the largest that has ever been launched into space. Telescopes are often put into space because they can sit above ...

This is despite the country having a 500-metre aperture spherical telescope (Fast) in Pingtan, Guizhou province, the largest single radio dish on the planet; and the Guoshoujing telescope in ...

Stunning photos show bright comet lighting up the dark skies above ESO'sParanal Observatory, future home of the world's ...

A mirror is seen at the site where European Southern Observatory (ESO) is constructing the world's largest optical telescope atop a mountain in Chile's arid Atacama desert, in Chile, January 26, 2025.

The frame of the dome that will house the world's largest telescope has been completed, marking another key milestone in the observatory's construction. The European Southern Observatory's (ESO ...