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Crash landing

发布时间:2019-03-07 01:04:14来源:未知点击:

Astronomers last week lost their battle to keep the Compton Gamma Ray Observatory aloft when NASA decided to dump the telescope in the Pacific on 3 June. The nine-year-old spacecraft lost one gyroscope in December. Although the two remaining gyros can safely control the telescope’s descent into a remote piece of ocean, if another one fails NASA is worried that it could not determine the 15-tonne observatory’s landing place. Some astronomers are angry that their proposal for a safe no-gyro re-entry was ignored. “Disgust is a word that comes to mind,