Celebrate Earth Day With These Stunning Images Of Our Beautiful Planet

On Friday, April 22, billions of people across the globe will celebrate Earth Day. They will commemorate the event by staging rallies, participating in environmental clean-up activities, and pledging to undertake "green" initiatives to protect this precious planet. While that is certainly helpful, it would be even better if we could incorporate "greener" habits into our daily lives. These stunning images taken from space by NASA will serve as a reminder of why making every day "Earth Day" is so important.