NASA bids farewell to Spitzer Space Telescope
NASA’s Spitzer Space Telescope, one of the agency’s original four “Great Observatories,” will execute a final set of commands Thursday, quietly shutting down and putting itself to sleep after more than 16 years of trailblazing infrared observations. There are no plans to ever wake it up.”Spitzer taught us how important infrared light is to understanding our universe, both in our…