Vintage Photos of Polar Exploration

Back to the Future
Senior geologist Thomas Griffith Taylor (right) and colleague Frank Debenham negotiate the ice in December 1910. Too fragile to be handled, many of the newly-digitized images have not been seen for many years. Their recovery will help modern-day scientists use the explorers' work for research into subjects like global warming.

• Fight for the Top of the World
• Pictures of the Arctic