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The largest infrared space telescope
 
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Herschel telescope inspection
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The gigantic telescope of ESA’s Herschel infrared space observatory as it was being prepared for assembly with its spacecraft. Herschel uses the largest mirror ever flown in space.

Credits: ESA
 
 
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Space telescope comparison
A comparison of space telescope mirrors and detectable spectrum of the the Hubble Space Telescope, Herschel, and the James Webb Space Telescope.

Credits: BBC/ ESA
 
 
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Herschel spacecraft
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The flight model of the Herschel spacecraft mounted on its multipurpose trolley in a horizontal position for the the high-precision measurements of the distance between its primary and secondary mirrors (M1 and M2).

Credits: ESA
 


 Herschel: ESA's giant infrared observatoryHerschel in space, close up on its mirror
Read more
Revealing the invisible: Caroline and William HerschelObservations: Seeing in infrared wavelengthsThe electromagnetic spectrumL2, the second Lagrangian PointWhat are Lagrange points?Why infrared astronomy is a hot topicThe infrared explorers
In depth
Herschel in depthHerschel spacecraft in depth
 
 
 
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