In “Crisis: Planet Earth,” NASA scientists discuss efforts to combat global warming. “Into the Depths” follows studies of aquatic life in Lake Superior. Also examined: measuring Earth's temperature; and how the Great Lakes clean themselves. Host: Bill Kurtis.
Documenting the efforts of an antiques dealer to prove the authenticity of objects he claims to be the art of the Masai people. Included: the roles of medicine men; threats to the Masai's traditional lifestyle. Bill Kurtis hosts.
Following the pioneering work of UCLA neurosurgeon Keith L. Black, whose clinical trials on anti-tumor drugs show promise for the terminally ill. Also: case studies of three patients who have brain tumors. Host: Bill Kurtis.
A team of geologists searches for fossils amid unexplored peaks in the Andes Mountains of Chile to find clues to the geologic history of the region and prehistoric animals that lived there. Also: the ecological evolution of the area. Host: Bill Kurtis.
At Chicago's Northwestern Hospital, Dr. Leonard Cerullo uses "The Laser's Edge" to surgically remove two brain tumors from a patient. Also: the "gamma knife," which allows surgeons to operate without breaking the skin.
An epigraphist interprets the "Voices in the Stones" to learn about the ancient Maya civilization; "Catching the Sun" details an experiment in a South Dakota gold mine that may yield new data on particle physics.
"Journey to Save a Crane" studies efforts to preserve dwindling populations; and "Islands in the Jungle" reports on a new bird species near the Peruvian Andes. Footage includes a mating dance at the International Crane Foundation in Wisconsin; and scientists in Siberian wetlands. Host: Bill Kurtis.
"The New Science of Sports" includes segments on Michael Jordan's jumping, and the physiology of a swimmer. "Rock 'n Roll Physics" examines creative teaching methods used by two Illinois high-school educators. Included: the U.S. Olympic Training Center in Colorado.
Examining how the leak that caused "The Great Chicago Flood" of 1992 was repaired. Also: a "Dive into Darkness" to explore undersea caves in the Bahamas with biologist Jill Yager. Included: footage of the feeding of sharks. Host: Bill Kurtis.
"Miracle Babies" examines high-tech machines used to treat birth defects in newborns; and doctors use "The Laser's Edge" to surgically remove two brain tumors from a patient. Also: the "gamma knife," which allows surgeons to operate without breaking the skin. Host: Bill Kurtis.
Women who have survived breast cancer attempt to scale Argentina's Mount Aconcagua, one of the world's highest peaks. Included are comments from participants, preparations for the climb and challenges they faced.
Along the Sinai Peninsula, producer Bill Kurtis follows a modern-day "miracle"---a wild dolphin who adopted a human family. Among the most affectionate family members is a hearing-impaired Bedouin boy, who seems to have a special communication with the creature.
"Super Seeds" examines pest control and crop improvement. "Beneath the Ashes" studies regrowth in Yellowstone National Park following the 1988 fire there. Included: attempts to create a weevil-resistant bean; research using wasps to combat hornworms.
"Creating an Ocean" examines the efforts involved in making an oceanarium for Chicago's John G. Shedd Aquarium. Included: the adoption of penguins from a Scotland zoo; comments from Jim Robinett, curator of marine mammals at Shedd.
Paleontologists study "Fragments of Time"---dinosaur fossils---in the Argentine valley; and other experts study giant figures etched in the Peruvian sand by members of the ancient Nazca culture some 2000 years ago. Included: the discovery of a dinosaur skull in Texas.
Epigraphist Linda Schele listens to "Voices in the Stones" as she and a team of scientists probe ruins in Honduras to learn about the ancient Maya civilization. Included: Schele translates hieroglyphics; Host: Bill Kurtis.
A look at research being conducted on Antarctica, a continent scientists believe "may be a gauge for measuring the health of our global environment." Also: early expeditions to the South Pole; a journey inside an ice cave; a visit to Mount Erebus. Bill Kurtis narrates.
"Running Out of Time" examines threats to the cheetah population in Namibia; "The Fragile Fossil" looks at efforts to save the black rhinoceros from extinction. Included: veterinarians in Zimbabwe try to prevent poaching by dehorning rhinos. Host: Bill Kurtis.
A profile of Dr. Mae Jemison, who became the first black woman in space as a member of the 1992 Endeavour shuttle mission. Also: growing plants in space using methods of farming without soil, as explored in sweet-potato research at Alabama's Tuskegee University.