Telescopes are producing fast (jan 1, 1990 – jan 1, 2020)
Description:
Technological advancements had finally made it possible to build telescopes significantly larger than the 5-meter telescope at Palomar at a reasonable cost. New technologies have also been designed to work well in the infrared, and not just visible, wavelengths.Added to timeline:
Date:
jan 1, 1990
jan 1, 2020
~ 30 years