The Sloan Digital Sky Survey has created the most detailed three-dimensional maps of the Universe ever made, with deep multi-color images of one third of the sky, and spectra for more than three million astronomical objects. Learn and explore all phases and surveys—past, present, and future—of the SDSS.

Pi2FA aims at the development of new methods for investigating the magnetism in the outer layers of the solar atmosphere, the chromosphere. The objective is to understand the processes that make the chromosphere have so high temperatures.

The CTAO is an initiative which is planning the construction of a new generation of Cherenkov Telescopes to study the universe in very high energy gamma-rays. Gamma-rays carry information about the most violent and extreme events in the universe.