Earth from Saturn’s orbit via Cassini

• Share it like Cicero: How Roman authors used social networking
• The Sun, gravitational lensing and the 70 billion mile telescope
• DNA from a Russian cave: The Case of the Missing Ancestor
• Optogenetics: a new technique to controlling genes with light
• Scientists discover the molecule responsible for causing feelings of depression
• Life Satisfaction Linked to Personality Changes
• The Vitamin Myth: Why We Think We Need Supplements
• From the Manson Myth to My Friendship with Charles Manson
• The 11-year-old who ran away so she wouldn’t have to get married
• Six Brain-Damage Scourges That Cripple IQ in Sub-Saharan Africa
• Cool webpage design/animation: Riding the New Silk Road
• Professor E. Paul Zehr on How Wolverine’s Claws Could Work
• 18 obsolete words, which never should have gone out of style
• 50 Great Works of Video Art That You Can Watch Online
• Great re-issue review of (one of) my Mountain Goats favourites: All Hail West Texas

Via another great TEDEd lesson.