Herschel Finishes Scientific Mission – Apr 30, 2013– Cannes, France (Techreleased) – The Herschel satellite, part of the joint scientific mission, Herschel-Planck, with Thales Alenia Space as prime contractor, completed its mission today. A high-tech jewel, considered, with Planck, one of the most complex satellites ever constructed in Europe, Herschel was built by a Thales Alenia Space-led industrial team on behalf of the European Space Agency (ESA). Herschel was launched on May 14, 2009 along with the Planck satellite. This scientific observatory had a service life of nearly four years, exceeding its required lifetime by 10%.
Herschel was dedicated to the study of the cold part of the Universe. It was equipped with a telescope, featuring a main mirror 3.5 meters in diameter, giving it a surface area twice that of the mirror on the Hubble space telescope. This was the first space observatory to cover the spectrum between 55 and 672 µm (far infrared and submillimetric radiation), used to detect radiating objects at temperatures between 5 and 50K (-268/-223°C). Herschel was positioned in a large orbit around the L2 point which is 1.5 million kilometers from the Earth, and was the first space telescope to see the emission from cold cosmic dust, thus enabling it to observe the “fossil light” remaining from some of the oldest events in the Universe. Along with Planck, this powerful scientific observatory revolutionized modern astronomy by giving scientists a better understanding of distant parts of the Universe, as well as our own Solar System.