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X-ray delay?

发布时间:2019-03-08 06:10:09来源:未知点击:

A failed attempt by the US Air Force to launch a spy satellite last week might cause yet another delay to NASA’s long-awaited Chandra X-ray space telescope. The military satellite failed to reach its proper orbit on 9 April when the upper stage failed for reasons as yet unknown. Since Chandra uses the same Boeing-built upper stage as the spy satellite, its scheduled July launch is in jeopardy. “We’re not going to make a decision to launch Chandra until we understand the problem,