school years and the steps that led to a career she can't imagine ever giving up.

Geologist Liz Cottrell shows how she simulates the conditions of the deep Earth in her lab. She describes the frustrations of failed experiments, which are a necessary part of every success. "When you're surprised by your results," she says, "that's where all the discovery happens."to continue to do.”

A veteran of more than six decades in the civil rights struggle, Vivian joined in his first sit-in demonstrations in the 1940s in Peoria, Ill., long before the movement became front-page news.

He met the Rev. Martin Luther King Jr. soon after King’s victory in the 1955 Montgomery Bus Boycott, and became an active member of the fledgling Southern Christian Leadership Conference _ which King co-founded _ just a few years later.

Now, at an age when many of his contemporaries are long retired or long gone, Vivian is still working in the struggle for justice and equality for African-Americans.

He said the movement for civil rights isn’t just something that happened years ago _ it’s something for the younger generation to continue today.

“Most people think of Martin