Spelunking, or caving, is the recreational sport of exploring caves. The term comes from spelunk, the Middle English word for "cave." Many people are drawn to spelunking because virgin cave systems comprise some of the last unexplored regions on Earth. Edouard-Alfred Martel pioneered caving in the 19th century, and widespread interest in the activity led to the creation of the National Speleological Society in 1941. What distinction do purists draw between "cavers" and "spelunkers"?
Back in the day
This long-running British science-fiction program about a time-traveling adventurer known only as "the Doctor" has, over the years, gained an international cult following that spans generations. The original series ran for 26 seasons, going off the air at the end of 1989. A modestly successful Doctor Who TV movie in 1996 was followed in 2005 by the revival of the series. Over the years, 12 different actors have played "the Doctor," who travels through time and space using what machine?
Born on a day like today
Billy the Kid, who went by the name William H. Bonney and whose real name may have been Henry McCarty, was an infamous outlaw and murderer who roamed the American West from his teenage years until his death at the age of 21. The young fugitive was captured and jailed several times but escaped each time until he was finally killed by Sheriff Pat Garrett. Although rooted in history, the story of Billy the Kid has developed into a popular legend. Why is his gravesite enclosed by a steel cage?