Nathalie Cabrol: How Mars might hold the secret to the origin of life
While we like to imagine little green men, it's far more likely that life on other planets will be microbial. Planetary scientist Nathalie Cabrol takes us inside the search for microbes on Mars, a hunt which counterintuitively leads us to the remote lakes of the Andes mountains. This extreme environment — with its thin atmosphere and scorched land — approximates the surface of Mars about 3.5 billion years ago. How microbes adapt to survive here may just show us where to look on Mars — and could help us understand why some microbial pathways lead to civilization while others are a dead end.
"If you want to go out and start your own cemetery" in the UK, says Alison Killing, "you kind of can." She thinks a lot about where we die and are buried -- and in this talk, the architect and TED Fellow offers an eye-opening economic and social perspective on an overlooked feature of our towns and cities: the cemetery. Speaking specifically to UK laws, she unpacks the fascinating, sometimes funny, often contradictory laws about where you can be buried.
"In the cathedral of the wild, we get to see the best parts of ourselves reflected back to us." Boyd Varty, a wildlife activist, shares stories of animals, humans and their interrelatedness, or "ubuntu" -- defined as, "I am, because of you." And he dedicates the talk to South African leader Nelson Mandela, the human embodiment of that same great-hearted, generous spirit.
Trauma silences its victims, says creative arts therapist Melissa Walker, but art can help those suffering from the psychological wounds of war begin to open up and heal. In this inspiring talk, Walker describes how mask-making, in particular, allows afflicted servicemen and women reveal what haunts them -- and, finally, start to let it go.
Statistician Nic Marks asks why we measure a nation's success by its productivity -- instead of by the happiness and well-being of its people. He introduces the Happy Planet Index, which tracks national well-being against resource use (because a happy life doesn't have to cost the earth). Which countries rank highest in the HPI? You might be surprised.
In this inspiring talk about recent developments in biomimicry, Janine Benyus provides heartening examples of ways in which nature is already influencing the products and systems we build.
Physiatrist and engineer Todd Kuiken is building a prosthetic arm that connects with the human nervous system -- improving motion, control and even feeling. Onstage, patient Amanda Kitts helps demonstrate this next-gen robotic arm.
Heather Lanier's daughter Fiona has Wolf-Hirschhorn syndrome, a genetic condition that results in developmental delays -- but that doesn't make her tragic, angelic or any of the other stereotypes about kids like her. In this talk about the beautiful, complicated, joyful and hard journey of raising a rare girl, Lanier questions our assumptions about what makes a life "good" or "bad," challenging us to stop fixating on solutions for whatever we deem not normal, and instead to take life as it comes.
What is it like to raise a child who's different from you in some fundamental way (like a prodigy, or a differently abled kid, or a criminal)? In this quietly moving talk, writer Andrew Solomon shares what he learned from talking to dozens of parents -- asking them: What's the line between unconditional love and unconditional acceptance?
Questions of good and evil, right and wrong are commonly thought unanswerable by science. But Sam Harris argues that science can -- and should -- be an authority on moral issues, shaping human values and setting out what constitutes a good life.