Solar System 7 light-years away. Compared to many other planetary systems, the Solar System stands out in lacking planets interior to the orbit of Mercury. The known Solar System also lacks super-Earths (Planet Nine could be a super-Earth beyond the known Solar System). Uncommonly, it has only small rocky planets and large gas giants; elsewhere planets of intermediate size are typical—both rocky and gas—so there is no "gap" as seen between the size of Earth and of Neptune (with a radius 3.8 times as large). Also, these super-Earths have closer orbits than Mercury. This led to hypothesis that all planetary systems start
Terra Alta, West Virginia Terra Alta, West Virginia Terra Alta is a town and former coal town in Preston County, West Virginia, United States. The population was 1,477 at the 2010 census. Terra Alta was originally called Portland, and under the latter name had its start in the 1850s. The present name Terra Alta is derived from Latin meaning "high land". The town is home to the James S. Lakin House and Terra Alta Bank, each listed on the National Register of Historic Places. Terra Alta is located at (39.444343, -79.544002). According to the United States Census Bureau, the town has a total area