Hosted on MSN1h
Jupiter's Moon Callisto Probably Has an Ocean Under Its Surface
If there was a contest for the most interesting moon in our solar system, Callisto would be a contender. Jupiter's ...
Eccentricities of orbits point to significantly different upbringings for small and large planets
The shape of a planet's orbit is one of its fundamental properties, along with its size and distance from its host star. Earth has a nearly circular orbit, but some planets outside our solar system, ...