UMass Amherst celebrated the 100th anniversary of the creation of the Cooperative Extension Service with a program that included academic and community leaders, and farmers and business people responsible for keeping the Extension mission moving forward. The keynote address was delivered by Richard Sullivan, chief of staff to Gov. Deval Patrick and former secretary of Energy and Environmental Affairs. Republican, News release

Magdalena Bezanilla and doctoral candidate Shu-Zon Bezanilla, both Biology, present a detailed new model that for the first time proposes how plant cells precisely position a “dynamic and complex” structure called a phragmoplast at the cell center during every division and how the plant directs cytokinesis, as reported in the journal eLife. News-Medical.net, Bio-Medicine, Science Codex, Nanowerk, Phys.org, Science Daily, Science Newsline, News release

Elizabeth (Betsy) R. Dumont, Biology, and colleagues have received a five-year, $1.91 million grant from the National Science Foundation (NSF) to study how bats sense their environment and other individuals, including potential mates, in order to ensure survival and reproduction. News release

Lyle Craker, Stockbridge School of Agriculture, was interviewed about the difficulties he encountered when he tried and failed to get federal approval to grow marijuana to study possible health benefits of the plant, despite support from the campus administration. New England Public Radio

The late Judith Young, Astronomy, speaking in 2011, was quoted in a National Geographic story about the autumnal equinox.