Morning Open Thread: Earth Day

Good morning, today is April 22, 2013 -- Earth Day. NASA's fleet of science satellites and research aircraft are at work around the world 24/7 helping scientists discover just how our living planet really works. This video from our friends at NASA provides a breathtaking look at our planet Earth.

Your morning open thread begins below...


We welcome relevant, respectful comments. Any comments that are sexist or in any other way deemed hateful by our staff will be deleted and constitute grounds for a ban from posting on the site. Please refer to our Terms of Service (revised 3/17/2016) for information on our posting policy.