Mercury mission共有 agencies ESA and JAXA; MPO and Mio study Mercury’s interior, orbit, and evolution. Recent findings suggest Mercury’s shrinkage is greater than thought.
Researchers from the German Aerospace Center have found that Mercury’s diameter loss could be up to 14 miles (23 km), about 30% more than previously believed. BepiColombo’s approaching orbit will help confirm the extent of the planet’s contraction as the mission advances toward Mercury.