William Mullen

In a year filled with commemorative 50th year observances and ceremonies marking painful and heroic events of World War II, an exhibit at the Chicago Cultural Center has quietly been...

Welles Park, an urban playground of closely cropped baseball diamonds surrounded by busy city streets and hemmed in by chain link fences, bears little resemblance to a palm-fringed Pacific atoll....

The men who dropped atomic bombs on Hiroshima and Nagasaki 49 years ago to end World War II were in Chicago, finding themselves still in the middle of a fight....

The dramatic case of a Yale University researcher who was infected with a rare tropical virus following a laboratory accident has highlighted the sensitive issue of safety in such labs....

In a horse-and-buggy age before automobiles and airplanes, traveling 25 miles an hour was really fast. Sixty miles an hour was hair-raising, and 100 miles an hour was pure science...

It's hard to top the adventure of being stranded for nine months at the South Pole in order to take the best seat on Earth for watching the comet Shoemaker-Levy...

The twinkle of starlight may disappear in Williams Bay, Wis., this weekend. It will be removed by a "Star Wars" device installed at the University of Chicago's Yerkes Observatory, attached...

Like some cockeyed vaudevillian comic in a loud suit and a funny hat, Cookie, an old cockatoo, always has relied on exaggerated showiness and a raucous line of patter to...

Colleen O'Grady, 11, of Palos Heights, was suffering from a mild case of chicken pox two years ago when her abdomen became red and tender to the touch. Two days...

One of the hazards of hunting dinosaur bones in Antarctica is that, if you're not prepared, your breath can fall on your head in the middle of a subzero night....