Portal:Antarctica
Template:/box-header Template:/Intro Template:/box-footer Lua error in package.lua at line 80: module 'Module:Box-header/colours' not found. Polar night is a phenomenon resulting from the axial tilt of the Earth respective to the Sun, where the Sun does not rise above the horizon during any 24 hour period in the regions of the Earth in proximity to the poles. The length of this time when the sun is constantly below the horizon varies from 20 hours at locations on the Arctic Circle and Antarctic Circle to 179 days at the geographic poles. The period of polar night can trigger depression in some people. People who suffer from seasonal affective disorder are particularly susceptible.Lua error in package.lua at line 80: module 'Module:Box-header/colours' not found. Remotely operated underwater vehicle (ROV) to take images from the ocean floor; operation during a cruise of RV Polarstern (ANT-XI/3) in Paradise Bay, Antarctic Peninsula Lua error in package.lua at line 80: module 'Module:Box-header/colours' not found.Portal:Antarctica/Selected panorama/Layout Template:/box-header Template:/Projects Template:/box-footer Template:/box-header Template:/Opentask Template:/box-footer Template:/box-header Template:/News Template:/box-footer Template:/box-header Template:/Did you know Template:/box-footer Template:/box-header Template:/Categories Template:/box-footer Template:/box-header Template:/Topics Template:/box-footer Template:/box-header Template:/Related portals Template:/box-footer Template:/box-header Template:/Wikimedia Template:/box-footer |