Like a phoenix rising from the ashes, astronomers have found a whole new solar system may be forming in the wake of a star's violent death. This is the Hidden Universe of the Spitzer Space Telescope, exploring the mysteries of infrared astronomy with...
Dale Aden has been farming most of his life, just like his father, and his fathers father. I am a third generation farmer on this land. His land is in Okabena, Minnesota, right along the Okabena creek, where for many years, Aden watched helplessly as...
It is called the Roof of Africa. Rising 19,340 feet nearly 4 miles into the sky, Mount Kilimanjaro is the highest point on the entire African continent. Located in northeastern Tanzania in east Africa, Mount Kilimanjaro is about equal distant from Ca...
This is Kibera, a slum in Nairobi, Kenya, home to about 1 million people. These children play without a care, just as it should be, but their reality is grim. They are all orphans, half of them because of AIDS. In the last five years, it has gotten w...
From planetary orbit, the earth and heavens look serene. But the vacuum of space is a hostile environment, lacking oxygen and permeated by radiation. Since the advent of manned space flight in the 1960s, humankind has been exploring this inhospitable...
It's morning in the Kalahari, and this female cheetah has discovered that her cubs are growing ever more independent. She calls for them, but theyve already gone out exploring. And theyve discovered a wounded gemsbok that may have escaped from a lion...
It's morning in the Kalahari, and this female cheetah has discovered that her cubs are growing ever more independent. She calls for them, but theyve already gone out exploring. And theyve discovered a wounded gemsbok that may have escaped from a lion...
And clearly, we are trying to find evidence of ET, and we are trying to do that by looking for a signal, in whats called the electromagnetic spectrum, which is a fancy way of saying the radio dial, at least for us. Let me turn on my radio here, okay,...
Ok, imagine you are at the beach, in order to figure out if there are fish in the ocean, you dip an empty glass into the water and look inside. No fish in the glass? Well, there must be no fish in the ocean. Not too logical, is it? But that's exactly...
The cat's earliest ancestors probably hunted both on the ground and in the trees. To survive, they needed not only claws, but remarkable balance, an aptitude all cats retain to this day. In keeping with its reputation, the cat usually does land on al...
When the wind picks up at the foot of the Rockies, there are those who believe they can hear the future. At the National Renewable Energy Laboratory, making alternative power sources competitive with fossil fuels has been a mission since the energy c...
Since the US space program began in 1958, NASA has achieved much in the realm of space exploration. From lunar landings to voyages into the depth of our solar system, NASA has built a storied history. In the early days, space was a men's world. All t...
So, every year at this time, nearly half a million people step forward to help, to volunteer in an international coastal cleanup and the results can be staggering. In the last couple of years alone, an average of 8 million pounds of trash is collecte...
This is Mars on Earth, a station that was built to help us learn how to live on the red planet. A group of explorers and NASA scientists are spending the next two weeks inside this habitat, trying to figure out how people will live on Mars. The NASA...
How do you like a behind-the-scenes look at one of the nature's most luxurious full service, hippos' spas. Our dominant male hippo customer has already arrived here at the Mezima Spring in Kenya, Africa. The carp goes right to work. It uses its wide,...
