The WIYN 3.5-meter Telescope is a flagship instrument at Kitt Peak National Observatory, managed in collaboration with NOIRLab and several academic institutions. Since its first light in 1994, it has become a cornerstone of modern astronomical research, specializing in the study of stars, galaxies, and exoplanets. The telescope's name reflects the collaborative effort of the University of Wisconsin, Indiana University, Yale University, and NOIRLab.

The WIYN’s innovative design includes an active optics system, which compensates for atmospheric distortions, allowing for remarkably sharp images. This makes it an ideal tool for studying dense star clusters and nearby galaxies in detail. Its wide field of view is also perfectly suited for surveying large portions of the sky, enhancing its capabilities in capturing detailed optical observations of celestial objects.

One of WIYN’s most significant contributions has been in the search for and study of exoplanets. With the NEID spectrograph—a state-of-the-art instrument installed on the telescope—WIYN has been instrumental in detecting the tiny stellar wobbles caused by orbiting planets. This capability is critical for discovering Earth-like planets in habitable zones around other stars.

The WIYN 3.5-meter Telescope has proven to be an invaluable tool for modern astronomy. Its advanced technology and adaptability to new instruments keep it at the forefront of astronomical exploration, enabling researchers to observe the universe with unprecedented precision and detail. This cutting-edge research continues to expand our understanding of the cosmos.