
By Elizabeth Landau, CNN
Sometimes technical science experiments lead to amazingly beautiful imagery. Princeton University's annual Art of Science competition collects some tantalizing examples of the intersection between science and art.
Click through the gallery to see some of the contenders.
By Edythe McNamee and Jacque Wilson, CNN
Neuroscientists love Aplysia. They are a type of sea slug that grows to be about a foot long. With only 20,000 nerve cells - compared with about 100 billion found in the human brain - Aplysia are the perfect lab animals for brain researchers hoping to isolate a crucial connection.
Plus, "they're just attractive to look at," says Dr. Eric Kandel, a biochemistry and biophysics professor at Columbia University.
Kandel won the 2000 Nobel Prize in Physiology or Medicine for his work with Aplysia - or more specifically, for his work on the biological mechanisms of memory storage.
For decades, Kandel has studied how we create short-term and long-term memories at the molecular level. His work has shown what genes are changed during the learning process, how these genes are altered and how the changes contribute to the growth of new connections in the brain.
CNN spoke with Kandel about his research and why he's fascinated by the human brain. The following interview has been edited for brevity and clarity:
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.

By Nana Karikari-apau, CNN
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 ninth installment.
NASA astronaut Catherine "Cady" Coleman has logged more than 4,330 hours in space aboard the Space Shuttle Columbia and the International Space Station.
Coleman was a flight engineer on a Russian Soyuz rocket that took her to the space station in December 2010, and came back to Earth in May 2011, having spent 159 days in space. CNN followed her on this journey - called Expedition 26/27 - to get ready for the expedition, and showed segments every month of what life was like for her and her family in the year before the launch.
This month, CNN Light Years caught up with Coleman to reflect on her spaceflight experiences. Here is an edited transcript.
By Kelly Murray, CNN
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 eighth installment.
Being nice to others and cooperating with them aren't uniquely human traits. Frans de Waal, director of Emory University's Living Links Center at the Yerkes National Primate Research Center in Lawrenceville, Georgia, studies how our close primate relatives also demonstrate behaviors suggestive of a sense of morality.
De Waal recently published a book called "The Bonobo and the Atheist: In Search of Humanism Among the Primates," which synthesizes evidence that there are biological roots in human fairness, and explores what that means for the role of religion in human societies. CNN's Kelly Murray recently spoke with De Waal about the book.

By Nana Karikari-apau, CNN
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 seventh installment.
Sara Seager is a professor of physics and planetary science at MIT. She works on exoplanets, which orbit stars other than the sun.
Seager considers herself a pioneer and risk taker. She worked on exoplanets before it was considered cool, when people thought the field would go nowhere. Time magazine named Seager one of the 25 most influential in space in 2012, and she recently appeared in a CNN gallery of top women scientists.
MIT's Sara Seager studies exoplanets, which orbit stars other than the sun.
CNN Light Years recently chatted with Seager about her work. Here is an edited transcript:
By Kelly Murray, CNN
Editor's note: The Science Seat is a feature in which CNN Light Years sits down with movers and shakers from many areas of scientific exploration. This is the sixth installment.
As primates, humans were once furry, much like the modern chimpanzee. But when, and why, did we lose this fur and become "naked"?
Nina Jablonski, professor of anthropology at Pennsylvania State University, studies primate evolution with an emphasis on human skin. Among numerous academic publications, she also wrote the book, "Skin: A Natural History."
CNN Light Years spoke with Jablonski about the evolution of human skin, from furry to naked. Here is an edited transcript:

By Nana Karikari-apau, CNN
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 fifth installment.
Sarah Dodson-Robinson is an assistant professor in the astronomy department at the University of Texas at Austin. She is a member of the American Astronomical Society and recently won the organization's Annie Jump Cannon Award for her work exploring how planets form.
Dodson-Robinson says she enjoys discovering new things and coming up with new pieces of knowledge, no matter how small. She describes it as a “wonderful feeling.”
CNN Light Years recently chatted with Dodson-Robinson about her research. Here is an edited transcript:

By Kelly Murray, CNN
Editor's note: The Science Seat is a feature in which CNN Light Years sits down with movers and shakers from many different areas of scientific exploration. This is the fourth installment.
Ever wondered why some tomatoes taste great, and many others don’t?
Professor Harry Klee, a horticulturalist at the University of Florida in Gainesville, is on a mission to improve the taste and quality of supermarket tomatoes. He was elected to the National Academy of Sciences in 2012 for his efforts.
Klee presented his research in Boston recently at the American Association for the Advancement of Science annual meeting. CNN Light Years spoke with Klee before the conference. Here is an edited transcript:
By Zaina Adamu, CNN
Editor's note: The Science Seat is a feature in which CNN Light Years sits down with movers and shakers from many different areas of scientific exploration. This is the third installment.
Thousands of families were left devastated when Superstorm Sandy destroyed their homes in October. When it comes to these extreme climate events, according to Chris Field, founding director of the Carnegie Institution's Department of Global Ecology, the worst is yet to come.
Field is also a professor of biology and environmental earth system science at Stanford University and a member of the Intergovernmental Panel of Climate Change delegation that won the 2007 Nobel Peace Prize. He holds a doctorate from Stanford University.
CNN Light Years spoke with Field before he headed to Boston for the recent American Association for the Advancement of Science conference. Here is a transcript, edited for brevity and clarity:

