办事指南

Silent witness

点击量:   时间:2019-03-08 09:11:14

A veteran spacecraft temporarily stopped phoning home earlier this month. After controllers at NASA’s Jet Propulsion Laboratory in Pasadena, California, shut down a set of unused sensors on the Voyager 2 spacecraft on 12 November, the probe went silent. “We don’t know how it happened,” admits Voyager 2 project manager Ed Massey. However,