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
Natural gas pipeline system in the United States operate in them. Many experts and studies show that the inferior oversight of gas pipelines have led to hundreds of pipeline accidents that have “killed 60 people and injured 230 others in the last five years,” according to the New York Times. This analysis excludes the casualty figures from the 2010 San Bruno pipeline explosion that killed 7 people and injured more than 50 others. Natural gas pipeline system in the United States The US natural gas pipeline system is a complex system of pipelines that carries natural gas nationwide and for import and export for use by millions of