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These two women are climbing mountains for Indian girls to go to school
NASA scientist Kavya Manyapu and Poorna Malavath, who summited Mount Everest at the age of 13, have joined forces. The pair have created 'Project Shakthi,' which hopes to raise $100,000 to educate 100 girls in India. They plan to accomplish this by climbing some of the world's most difficult peaks.
How and why Lewis Pugh completed the first swim across the Red Sea
Swimmer Lewis Pugh is tackling the climate crisis ... one open water swim at a time. Pugh previously swam in the Antarctic wearing just his swimming briefs. He has just completed the world's first swim across the Red Sea, from Saudi Arabia to Egypt.
Nedd Brockmann 'went through hell and back 10 times' as he ran nearly 2,500 miles across Australia in 47 days
Nedd Brockmann has just completed a daunting journey. The Australian runner traversed almost 2,500 miles across the continent, from Perth to Sydney, in just over 46 days for charity.
The former footballer who picked up running and ended up crossing America
When visa issues derailed his soccer career, Hellah Sidibe decided to take up running. He soon became addicted and, last year, he became the first Black man to run solo across the US -- traversing 14 states in 84 days.
Nicola Spirig: Greatest female triathlete reflects on career after announcing retirement
Nicola Spirig recently became the second woman to finish a sub-eight-hour full distance triathlon, at the Pho3nix Foundation's Sub8 event in Germany. With retirement on the horizon, the 2012 Olympic champion talks to CNN about what's next.
Female amputee athlete runs 104 marathons in 104 days
Imagine running a marathon every day... for 104 days in a row. Earlier this year, amputee ultrarunner Jacky Hunt-Broersma did just that. Her impressive feat set an unofficial women's world record.
See what the US' fastest marathon runner is up to now
Ryan Hall was one of the world's best marathoners. Today, his workouts -- and physique -- are a little different. He's just completed a unusual challenge involving chopping a cord of wood and carrying two 62-pound water jugs across more than 5,000 feet of elevation up the Grand Canyon.
Ultrarunner smashes Central Park record, says plant-based diet was key
Earlier this year, Robbie Balenger set a new record for New York City's Central Park Loop Challenge. The vegan ultrarunner completed 16 loops, totaling nearly 100 miles in just over 18 hours.
