ESO's Extremely Large Telescope teaser

The Extremely Large Telescope (ELT), currently under construction in Chile, will be the world's biggest eye on the sky when it sees first light, planned for 2028. This revolutionary ground-based ESO telescope is set to be the largest of its kind in the world. 798 individual hexagonal segments will make up the telescope's main mirror, which spans 39 metres in diameter. The unique 5-mirror design of this telescope and advanced imaging technology will allow the ELT to produce images 15 times sharper than the Hubble Space Telescope. The ELT’s light-gathering power will allow astronomers worldwide to delve deeper and more clearly into our Universe, addressing the most prominent astrophysics questions of our time.

More about the ELT: https://elt.eso.org/