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The Long and Winding Road: DNA Evidence for Human Migration; Plus July Issue Highlights

Gary Stix discusses his July Scientific American cover article on DNA evidence for the history of human migration. And editor in chief, John Rennie, talks about the neuroscience of dance, the quantum cosmos and Rubik's Cubes. Plus, we'll test your knowledge of some recent science in the news. Web sites mentioned on this episode include www.sciam.com/sciammag

July 7, 2008 — Steve Mirsky

Pulsar Pair Backs Einstein

Score another one for general relativity. Albert Einstein's theory of gravity catapulted to fame in 1919 , thanks to measurements made during a solar eclipse.

July 7, 2008

Tunguska--100 Years Later [Slide Show]

What happened on June 30, 1908 in central Siberia? Was the atomic bomb–size airburst caused by antimatter? An extraterrestrial spacecraft? A wayward black hole?

June 30, 2008

Tunguska--100 Years Later [Slide Show]

What happened on June 30, 1908 in central Siberia? Was the atomic bomb–size airburst caused by antimatter? An extraterrestrial spacecraft? A wayward black hole?

June 30, 2008 — Adam Hadhazy

The Tunguska Mystery--100 Years Later

Finding a piece of the elusive cosmic body that devastated a Siberian forest a century ago could help save Earth in the centuries to come

June 30, 2008 — Luca Gasperini, Enrico Bonatti and Giuseppe Longo

50% off for Back to School

50% off for Back to School