Eccentricities of orbits point to significantly different upbringings for small and large planets
Astrobitica
March 5, 2025 (Last updated: March 5, 2025) 1 minute read
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, called exoplanets, have very elliptical orbits.