• Dimitar Sasselov
• Astronomer

• Speaking at TEDGlobal 2010
• July 2010
• Oxford

How we found hundreds of Earth-like planets: Astronomer Dimitar Sasselov and his colleagues search for Earth-like planets that may, someday, help us answer centuries-old questions about the origin and existence of biological life elsewhere (and on Earth). How many such planets have they found already? Several hundreds.