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ESA's Herschel Space Observatory Runs Out of Helium - SpaceRef
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Educational Insights GeoSafari Telescope & Microscope Set, 2-in-1 Set, STEM Learning, Ages 8+ : Toys & Games - Amazon.com
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Herschel space telescope shuts down
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Amazon.com | Herschel Backpack, Port | Casual Daypacks
Instruments | Herschel Space Observatory
IRSA - News Archive
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Herschel's instruments – Herschel Space Observatory
SPICA—A Large Cryogenic Infrared Space Telescope: Unveiling the Obscured Universe | Publications of the Astronomical Society of Australia | Cambridge Core
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