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Vacuum and cryogenics

Vacuum and cryogenics

Balloon-borne telescopes could keep cool with less

11 Dec 2020 Isabelle Dumé
BOBCAT
In-flight video still from BOBCAT during liquid helium transfer at an altitude of 130,000 feet. Credit: NASA
Balloon-borne telescopes can observe a wealth of astrophysical phenomena that ground-based instrumen

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Isabelle Dumé is a contributing editor to Physics World
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