Letter from Will D. Campbell, director of Katallagete, the magazine of the Committee of Southern Churchmen, and James Y. Holloway, the publication's editor, urging recipients to contribute to a fund in support of Fannie Lou Hamer.
This photo depicts a dark room with a blue dot in the center with smaller green dots inside of it. Eduardo Kac's Genesis translates a biblical sentence into Morse code and then into DNA, creating a synthetic gene inserted into bacteria.
This chart shows the way geologic time is broken down into smaller spans of time called Eons, Eras, Periods, and Epochs. The top of the chart is current time, labeled as 0 Ma (0 years before present). The bottom of the chart represents the beginning…