CAMBRIDGE, Mass. (July 18, 2013) – Writing in his journal about the scientists of his era, Henry David Thoreau bemoaned their blindness to significant phenomena: "The question is not what you look at, but what you see." More than 150 years later, his words still ring true.
For more than a century, scientists have been peering through microscopes, carefully watching cells divide. Until now, however, none has actually seen how human cells manage to divide into two equally-sized daughter cells during mitosis.