Vik Muniz makes art from pretty much anything, be it shredded paper, wire, clouds or diamonds. Here he describes the thinking behind his work and takes us on a tour of his incredible images.

Liver cancer is one of the most difficult cancers to detect, but synthetic biologist Tal Danino had a left-field thought: What if we could create a probiotic, edible bacteria that was "programmed" to find liver tumors? His insight exploits something we're just beginning to understand about bacteria: their power of quorum sensing, or doing someth...

Graphic designer Stefan Sagmeister takes the audience on a whimsical journey through moments of his life that made him happy -- and notes how many of these moments have to do with good design.

Drawing from James Baldwin and Kwame Nkrumah, Vic Kweku Mensa delivers an empowering talk on unifying the diaspora. He addresses the divide and conquer mentality, the shared experiences and pain inflicted by oppressors on the Continent and the diaspora, slavery and its ramifications, the imposition of imperialism, and how neocolonialism has cont...