Polar Night is a Manga/Manhwa/Manhua in (English/Raw) language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

Heavy snow, strong winds, extreme cold, and an Antarctic winter with half of the year being night. An unidentified 'something' appeared in front of researchers isolated in the worst conditions on Earth.