International Mountain Day is celebrated annually on 11 December to highlight the importance of mountains in sustaining ...

Friends are the family we choose. A sweet friendship refreshes the soul. Good friends, good times. Side by side or miles apart, friends are always close to the heart. Making memories with my favorite ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Hashtags have become a standard in ...