In the paper Evidence for basaltic volcanism on the Moon within the past 100 million years (Braden et al. 2014), suggest that features such as Ina (image below) represent a far more recent age of ...
The rotations of comets and asteroids are affected by outgassing volatilities. Io is very volcanicly active. Does it give Io a varying orbit and a slow rotation? Tidal forces should take longer than ...
According to the NASA JPL web-report, Gravity Gradients Frame Oceanus Procellarum, a rift-like ring structure surrounding the Moon's Oceanus Procellarum has been detected as a gravity anomaly by the ...