Dr Stephen Serjeant on the OU and Herschel-Plank
Professor Brian Swinyard on the Herschel Telescope
Tom Bradshaw on keeping Planck cool
Find out more
Studying astronomy with The Open University
The Herschel project on the European Space Agency site
The Planck project on the European Space Agency site
The Planetary and Space Science Institute at The Open University
The end of the mission
In April 2013, the Herschel telescope's coolant finally ran out, and it stopped working. [BBC News reports on the end of the mission] But not before capturing some astounding images of the universe - like this one:

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