Drones aren't just used for spying and dropping bombs. The civil applications for unmanned aircraft are numerous, from spreading seeds on fields to delivering medical supplies to remote areas. The World's Jason Margolis has more.
Paul Nicklen risks life and limbs to take photographs in some of the most inhospitable places on earth. One of them has just won him the prestigious Veolia Environment Wildlife Photographer of the Year award.
What you eat ends up in your hair. Scientists in the US and Europe have used this basic idea to devise a sort of hair-based GPS tracking system. Law enforcement agencies are now using this technique to solve crimes. NOVA's Ari Daniel Shapiro reports.
British explorer Sir Ranulph Fiennes is preparing an assault on Antarctica. He'll attempt to be the first person to successfully march across Antarctica on foot in the middle of winter. No person has gone more than 60 miles inland in winter.
A team led by British explorer Sir Ranulph Fiennes has announced to do six month ice trek and cross 2,000 miles via the South Pole to McMurdo Station. Can you name this partially frozen southern sea that wraps around this coastline of Antarctica?
A new census of emperor penguins has found that there are roughly twice as many as had been estimated. The new numbers don't change the fact that Antarctic penguins are seriously threatened by climate change. Host Lisa Mullins speaks with Michelle LaRue.
The news about climate change comes rather like snowflakes in a blizzard-from all directions at once, and accumulating in such overwhelming amounts and impact that it can be hard to know where to start digging out [...]