NOVA scienceNOW

Kepler telescope; genetic key to autism; using computers to authenticate paintings; Maydiane Andrade.

The sense of taste; carbon sequestration; evolutionary roots of human language; biomedical engineer Sangeeta Bhatia.

Building a permanent base on the moon; microbiologist Jack Griffith; Australian songbird called the zebra finch; sounds; paleoclimatologist Lonnie Thompson.

Repair mission for the Hubble Space Telescope; link between brain structure and memory; earthquakes in the heartland.

Whether humans could survive a trip to Mars, which could take two to three years.