Related by context. Frequent words. (Click for all words.) 39 North Pole 36 Santa Workshop 34 IPY 34 Thule 33 mittens 33 Antarctic expedition 33 Adventurer 33 Chilingarov 32 NORAD Santa 31 AUVs 31 Arctic explorer 30 Polar 30 Santa Helpers 30 Elf 29 polar explorer 28 Resolute Bay 28 Lomonosov Ridge 28 Santa 28 Arctic Circle 28 NORAD Tracks Santa 28 elf 28 VTT 28 Magnetic 28 Metronome 27 Hovercraft 27 ApS 27 Norad 27 reindeers 27 Arctic 27 Seabed 27 elves 27 Greenlandic 27 Claus 27 Hinode 27 expedition 26 ESA Mars 26 dogsled 26 Expedition 26 Reindeer 26 Abominable Snowman 26 Santa elves 26 Santa Clauses 26 polar 26 ICESat 26 Nautilus 26 Santa helpers 26 Kringle 26 Masternaut 25 SINTEF 25 Santa Claus 25 Permafrost 25 igloo 25 oceanographic 25 arctic 25 Geophysical 25 Nansen 25 reindeer 25 Rune 25 Nanook 25 Antarctic 25 Santa sleigh 24 Igloo 24 Arctic archipelago 24 Spitsbergen 24 sleigh 24 Tuktoyaktuk 24 Eskimo 24 Cosmic 24 icebreaker 24 Ellesmere Island 24 Northeast Passage 24 Snowman 24 Polar Bear 24 sleighs 24 sledges 23 Kirkenes 23 Vostok 23 Astronomy 23 icebound 23 Equator 23 sleds 23 Artic 23 Arctic Ocean 23 sledge 23 Photon 23 Barcode 23 Calypso 23 dog sled 23 snowman 23 Ernest Shackleton 23 Kaktovik 23 sled 22 Aurora Borealis 22 Sakhalin Island 22 Inuit 22 Coghill 22 Antartica 22 Inuits 22 Bering Strait 22 circumpolar 22 Santas