Largest space telescope ever closes its eyes on the universe
Longueuil, Quebec, April 29, 2013 – After making over 35,000 observations and logging more than 25,000 hours of studying the Universe, the Herschel Space Observatory has exhausted its supply of liquid helium, which is required to cool the telescope's instruments to make highly precise measurements. Now that the school-bus sized telescope will cease its active duty, astronomers from 14 countries, including Canada, will devote their full attention to analyzing the prolific telescope's legacy of data.



