Isaac Newton - isn't he the guy who discovered gravity? Great! So, what's gravity? Aaaah, gravity is the force that makes objects fall towards the ground. And, without gravity, we'd all float!

A date stamp at the bottom right-hand corner of each map indicates when the analysis was produced. Analyses over 3, 6 and 12 months are based on the average of the one-month grids which comprise the ...

Analyze monthly-averaged or daily sea ice extent and concentration via interactive maps. Plot monthly ice extent anomalies, map sea ice concentration anomalies, and more. Use a map-based interface to ...