April 22nd is Earth Day, and to celebrate this day, Google has launched version 7.1 of the desktop Google Earth. The highlight of the new version is its support for Leap Motion 3D control, which allows you to explore Google Earth with gestures such as rotating and zooming, truly giving you the ability to play around with the planet.Through the Leap Motion API, Google Earth enables users to command the globe with gestures, making your hands feel like birds flying in the air, skimming over the water and flying through places you yearn to visit.According to The Verge, currently more applications are supporting Leap Motion, including professional software from Autodesk and Corel, as well as games from Disney. Leap Motion is set to launch in mid-May, and this support from Google Earth enhances its appeal even further.When you don't have time to measure the earth by foot, besides documentaries, Google Earth is a good option. With the help of Leap Motion, you can have more perspectives and take a more active stance in exploring the Earth. Perhaps from this perspective, we will better understand the need to cherish and protect our Earth.