Herschel and Rosette Nebula
EU–(ENEWSPF)–5 March 2013
ESA’s Herschel space observatory is expected to exhaust its supply of liquid helium coolant in the coming weeks after spending more than three exciting years studying the cool Universe.
Herschel was launched on 14 May 2009 and, with a main mirror 3.5 m across, it is the largest, most powerful infrared telescope ever flown in space.
A pioneering mission, it is the first to cover the entire…
