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InSight lander’s troubled seismometer passes major test

3 April 2017 Stephen Clark

A balky interplanetary seismic instrument that ran into technical problems in 2015, forcing a two-year delay in the launch of NASA’s InSight lander to Mars, cleared a major test last month after engineers redesigned part of the sensor package, boosting confidence that the mission will be ready to blast off in May 2018.