By Eoghan Macguire and Matthew Knight, CNN
Ever since it was discovered in 2004, graphene has been hailed as a natural wonder of the materials world destined to transform our lives in the 21st century.
Graphene's amazing properties excite and confound in equal measure. How can something one million times thinner than a human hair be 300 times stronger than steel and 1,000 times more conductive than silicon?
By Rich Clifford, Special to CNN
It had been a little more than four months since completing my second space shuttle mission, STS-59, on the shuttle Endeavour.
I was finishing my annual flight physical at the Johnson Space Center Flight Medicine Clinic. The words from the flight surgeon were as expected: I was in great condition with nothing of note. Then I asked the doctor to look at my right shoulder because my racquetball game was suffering.
He asked if I had pain. I told him I wasn't in pain, but my right arm did not swing naturally when I walked. This comment must have set off some alarm, because he observed my walk down the hall and quickly said he would take me downtown to the Texas Medical Center the next day.
Editor's note: The Science Seat is a feature in which CNN Light Years sits down with movers and shakers from different areas of scientific exploration. This is the 10th installment.
By Matthew Rehbein, CNN
For more than 30 years, Susan Haig’s mission has been to ensure that endangered bird species don’t become extinct.
Haig’s professional achievements are beyond impressive: She is a supervisory research wildlife ecologist for the U.S. Geological Survey, a full-time professor at Oregon State University and president of the American Ornithologists’ Union, the largest professional society of ornithologists in the world.
Her current work seeks to find the best methods to preserve specific bird populations — often, populations that are endangered — with a combination of lab-based genetic research and field-based behavioral study. She also examines the effects of climate change and other environmental stressors on water birds and the places they live.
Haig’s efforts to reintroduce the California condor in the Pacific Northwest are detailed in her upcoming book “The California Condor in the Pacific Northwest,” which she cowrote with Jesse D’Elia, one of her Ph.D. students. The book comes out next month.
CNN Light Years caught up with Haig last week to talk about how we protect endangered species — especially in the face of climate change — and even how we might one day bring some back from extinction. Here is an edited transcript of our interview.