William Mullen

As a 2nd grader in a Naperville public school, Paul Sereno worried his parents because he still couldn't read. When he was a 3rd grader, they fretted because he still...

The bones of the biggest known meat-eating animal that lived on Earth were discovered in 1994 in Argentina, a 100-million-year-old dinosaur fittingly named Giganotosaurus. Now, it turns out, Giganotosaurus had...

When it comes to blockbuster sequels, Chicago movie buffs may end up at the Museum of Science and Industry this summer, where Mrs. Doubtfire will meet up with Jurassic Park's...

Open-heart surgery is a scary proposition, but Gov. Jim Edgar said Wednesday he'd undergo that ordeal once again rather than be on an airplane that suddenly jolts, fills up with...

In December, the height of the austral summer, the South Pole base fills up to its summertime capacity of 140 scientists, administrators and workers. Most are berthed in the summer...

Fifteen billion years after the Big Bang, at the deep-frozen southern polar axis of a tiny planet orbiting a small star in a medium-size galaxy, four telescopes are looking out,...

As interior decorators, cave dwellers in Brazil's Amazonian rain forest 11,000 years ago were as spectacularly messy as they were creative. Both traits are part of an astonishing archeological portrait...

From the trenches of World War I, to the death camps of World War II, to the 1990s' "ethnic cleansing" in Bosnia and Rwanda, the brutality of the 20th Century...

As has happened with generations of pupils, when John W. McCarter Jr. first visited the Field Museum of Natural History in 1946, he was cursed from the start by a...

Like good pulp fiction, an American Earth-orbiting telescope last December stumbled in the dark recesses of space over a dying body. Since then, investigators all over the world have been...