Later this year an iconic instrument of science returns to the sea. Alvin, the submersible that found the Titanic and discovered countless new species at the bottom of the ocean will soon be exploring deeper depths. Ocean technology has come a long way since Alvin made its first dive in 1964. Increasingly, scientists are relying on robots, rather than manned submarines to explore the ocean. But when humans no longer put themselves at risk in the ocean depths, do we lose the thrill of exploration?

The Bay Area may be the high-tech capital of the nation. But increasingly, biologists working at some of the area's universities are turning to technology, too. We look at the game-changing field of "bio-robotics," and how it's helping scientists learn more about animal behavior -- even among some of the creepiest of creatures.

Even during the economic downturn, innovators and entrepreneurs in Silicon Valley have found a way to get rich and change the world. But that success has left out large groups of people. This week we're back in Silicon Valley, with a program called NewME, or New Media Entrepreneurship. It's designed to encourage women and minorities to found technology companies. Seven participants from around the country shared a house in San Francisco for three months, got coached on their business plans -- and attempted to perfect the art of the pitch.

If there is a founding belief to Silicon Valley, it's this: the idea is everything. But if you look around Silicon Valley, ideas all seem to be coming from the same kind of people. By a recent estimate, 1 percent of technology entrepreneurs were African-American. Only 8 percent of companies were founded by women. Mark Zuckerberg isn't just a model of success in the Valley, he's a blueprint. Now, one program aims to change the landscape by encouraging more women and minorities to launch companies.