Proxima Centauri is the closest star to our sun, and it has a planet orbiting it called Proxima Centauri b. The planet is about the same mass as Earth, and it is located in the habitable zone of its star, meaning that it could potentially have liquid water on its surface.

The Extremely Large Telescope (ELT) is a telescope that is currently under construction in Chile. It will be the largest optical telescope in the world, with a primary mirror that is 39 meters in diameter. The ELT will be able to collect more light than any other telescope, and it will be able to see objects that are much fainter than anything that we can currently see.

The ELT will be able to see many details on the surface of Proxima Centauri b. It will be able to detect the presence of water vapor in the atmosphere, and it will be able to determine the composition of the surface. The ELT will also be able to search for signs of life on the planet, such as the presence of vegetation.

The ELT will be a powerful tool for studying Proxima Centauri b and other planets in our galaxy. It will help us to learn more about the formation and evolution of planets, and it will help us to search for life beyond Earth.

Here are some of the specific things that the ELT could see at Proxima Centauri b:

* The presence of water vapor in the atmosphere

* The composition of the surface

* Signs of life, such as the presence of vegetation

* The presence of a moon or moons

* The planet's rotation rate and axial tilt

* The planet's magnetic field

* The planet's interior structure