Olav Kjorven, UNDP Assistant Secretary General, explain the importance of a Sustainable Energy future and the agenda for the Rio+20 conference 

United Nations Conference on Sust...

Over a six-hour period on June 5-6 2012, the Solar Dynamics Observatory (SDO) collected images in many wavelengths of one of the rarest predictable solar events: the transit of Venus across the...

Bence Viola from the Max Planck Institute for Evolutionary Anthropology in Leipzig discovered the tooth fragments together with Russian colleagues in the Denisova Cave in the Altai Mountains. Initi...

Anne Morriss, managing director of the Concire Leadership Institute, explains how the coffee giant increased efficiency and satisfaction by treating customers like employees.

HarvardB...

Albert Einstein predicted their existence in the last century, but thought it would be impossible to discover them. Astronomers are now looking for them, nevertheless: gravit...

Dr. Robert Lustig, Professor of Clinical Pediatrics, in the Division of Endocrinology at UC San Francisco, explores how and why to reduce sugar consumption. Series: "UCSF Center for Obesity, Asse...

Is there more than one universe? In this visually rich, action-packed talk, Brian Greene shows how the unanswered questions of physics (starting with a big one: What caused the Big ...

At TEDxCambridge, Michael Norton shares fascinating research on how money can, indeed buy happiness -- when you don't spend it on yourself. Listen for surprising data on the many ways pro-social sp...