This video segment adapted from NASA uses satellite imagery to provide an overview of the cryosphere in the northern hemisphere, including the Arctic. Investigate the cryosphere's role in North America, the extent of permafrost in the northern hemisphere, and how the polar regions play a role in reg
NASA satellite imagery provides an overview of the cryosphere in the Antarctic. Learn about Antarctic features such as clouds, glaciers, ice streams, ice shelves, and icebergs. In addition, explore how rising temperatures affect the region, for example by increasing the number of meltwater ponds, wh
Learn about the evolution of Earth's moon, from its initial formation to its current state, in this video from NASA. Real satellite imagery, as well as simulations, explore how the Moon has changed over time. The video looks at how the Moon likely formed about 4.5 billion years ago, how impacts from
