Satellites play chase to measure gravity, achieve picometer accuracy

Enlarge (credit: NASA/JPL-Caltech) The spinoffs from gravitational wave detectors are not just new scientific discoveries. The technology also has other uses. A good example of this is the gravity-measuring mission, GRACE Follow On, which was launched last year. The first reports on its laser rangefinder’s performance have… Read entire story.

Source: Ars Technica