Jim Whittaker, the first American climber to scale Everest, dies at 97
For 20 minutes of his life, Jim Whittaker was on top of the world. He was the first American to…
oxygen
Forest fires can release more energy than an atomic bomb
On the first full weekend in September, when the Line Fire was 20,000 acres in size and only 3% contained,…
Deep-sea metals could provide oxygen for life on the ocean floor
Researchers say the polymetallic nodules that mining companies hope to extract from the deep seafloor could be a source of…