To mark the recent liftoff of the space rover Curiosity, the 39th mission to Mars, Matthew Bell pulled together 39 interesting facts about t...

Christine Moe shows the above video, produced by WaterAid , to first-year medical students at Emory. "I want students to think more abo...

A dump truck in the tar sands region of Canada. Credit: iStockphoto.com. Following is an excerpt from an opinion piece published in the New ...

Prayer flags fly over a field in Dharamsala, India, in the foothills of the Himalayas. iStockPhoto.com. Following is an excerpt from an arti...

By Carol Clark Take an empty plastic bottle out of the trash. Slash the label and the top off with a knife, then use scissors to cut the bas...