Natura - nature Status: extant actualia - actual entities Status: extant Mundus Plinius - physical world Status: extant Astra Plinius - celestial bodies Status: extant Universe Status: extant (Supercluster) Virgo-Hydra-Centaurus Supercluster Status: extant (Supercluster) Virgo Supercluster Status: extant (Cluster) Local Group Status: extant (Galaxy) Milky Way Galaxy veter. Status: extant (Spiral arm) Orion Arm Status: extant (Region) Local Bubble Status: extant Local Interstellar Cloud Status: extant (Planetary system) Solar System Status: extant (Planet-satellite system) Earth System Period: Precambrian - Present (4600 Ma - present); Status: extant (Planet) Earth veter. Period: Precambrian - Present (4600 Ma - present); Status: extant "spheres" (Earth) Status: extant (Sphere) "surface" (Earth) Status: extant (Oceanic basin) "Southern Basin" (Southern Ocean) Status: extant (Continent) Antarctica Status: extant (Mainland) Antarctica Status: extant (Plateau) Antarctic Plateau Status: extant