A February 1, 2012 satellite news media tour recapped the science of falling snow and NASA's space-based observation methods.

The tour also investigated factors behind the 2010

A February 1, 2012 satellite news media tour recapped the science of falling snow and NASA's space-based observation methods.

The tour also investigated factors behind the 2010 "Snowmageddon." For more information, visit http://www.nasa.gov/topics/earth/features/know-snow.html.

Join NASA scientists on a 40-minute visual tour of Earth from space, titled "Vital Signs: Taking the Pulse of Our Planet." This annual lecture, presented at the IMAX Theater at the National Air

Join NASA scientists on a 40-minute visual tour of Earth from space, titled "Vital Signs: Taking the Pulse of Our Planet." This annual lecture, presented at the IMAX Theater at the National Air and Space Museum in Washington, D.C. on September 10, was sponsored by the Maryland Space Business Roundtable.

Published October 23, 2014, the video features scientists guiding viewers through Earth's water cycle, forests, and frozen regions, as seen through NASA's Earth observing satellite fleet. It emphasizes our planet as a complex, dynamic system.

NASA's Earth science program seeks to enhance understanding of Earth's system and its response to changes, improving predictions of climate, weather, and natural disasters to better life today and in the future.