May 22, 2013 — While studying microorganisms on humans is not new, tracking fungi is. In a census of sorts, scientists checked the skin of healthy volunteers. They found an expansive ecosystem of silent inhabitants.
May 22, 2013 — In 2011, police detained Ai Weiwei for 81 days. Now, he's released a song that's turned the experience into a heavy metal protest song, along with a dystopian nightmare video. The lyrics are explicit and angry. Ai says his music is for the many political prisoners who remain jailed.