In this issue:
"The Origins of Creativity": New evidence of ancient ingenuity has forced scientists to reconsider when our ancestors started thinking outside the box.
"The Inner Life of Star Clusters": A new theory that seeks to explain how groups of stars form and fall apart – or, in rare cases, persist for hundreds of millions of years.
"The End of Orange Juice": A devastating disease is killing citrus trees from Florida to California.
"The Government Wants Your DNA": Police are amassing DNA evidence collected during criminal investigations – a practice that endangers civil liberties.