William Mullen

Seven years ago, the largest iceberg in recorded history broke off Antarctica's Ross Ice Shelf, a chunk of ice slightly larger than the island of Jamaica. For the Adelie penguins...

On a cloudy spring day, the first gray Adelie penguin chicks are hatching out in round pebble nests strewn across a bleak, rocky coastline, poking their heads from beneath the...

On a cloudy spring day, the first gray Adelie penguin chicks are hatching out in round pebble nests strewn across a bleak, rocky coastline, poking their heads from beneath the...

In 1831 Charles Darwin was a callow 22-year-old college graduate trained in theology and science when he embarked on a two-year, around-the-world voyage on the British ship Beagle. He was...

A long-simmering difference of opinion on public relations matters at the Field Museum apparently boiled over Monday when Pat Kremer, who headed the museum's publicity department over the last 12...

The first surviving male beluga whale to be born at the Shedd Aquarium is getting ready to leave home, family and familiar friends to take up a new life in...

Peru's state-owned petroleum company, Perupetro, attended a giant trade show in Houston last week in hopes of attracting well-heeled foreign oil companies to buy prospecting rights in the country's vast,...

With a blizzard of football fans descending on Soldier Field to watch the Bears take on the New Orleans Saints for the right to play in the Super Bowl, the...

Like cell phones or the Internet in recent history, the telescope's introduction in the early 17th Century had a swift and lasting impact on the world. Telescopes revolutionized military strategy...

James Lovell spent Thursday morning at the Adler Planetarium basking in the limelight with Edwin "Buzz" Aldrin, two old heroes from the glory years of America's early space age urging...