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Cryogenic testing on the successor of Hubble Telescope

NASA engineers completed final cryogenic testing on James Webb Space Telescope a few months ago.

The NASA Hubble Space Telescope (HST) has been orbiting the earth since 1990. It observes the near ultraviolet, visible, and near infrared spectra. It could last until 2030 2040 but a scientific successor, the James Webb Space Telescope (JWST) is scheduled for launch in the spring of 2019, in Kou...

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