MIT scientists used light to control how a starfish egg cell jiggles and moves during its earliest stage of development. Their optical system could guide the design of synthetic, light-activated cells for wound healing or drug delivery.

In a groundbreaking study on the synthesis of cellulose – a major constituent of all plant cell walls – a team of Rutgers University-New Brunswick researchers has captured images of the microscopic process of cell-wall building continuously over 24 hours with living plant cells, providing critical insights that may lead to the development of more robust plants for increased food and lower-cost biofuels production.

The discovery, published in the journal Science Advances, reveals a dynamic process never seen before and may provide practical applications for everyday products derived from plants including enhanced textiles, biofuels, biodegradable plastics, and new medical products. The research also is expected to contribute to the fundamental knowledge – while providing a new understanding – of the formation of cell walls, the scientists said

Adolescence is a critical time for developing social skills and youth often navigate difficult peer experiences. Parents can help their children by giving advice on how to deal with challenges, but it matters whether youth want support or not. A new study from the University of Illinois Urbana-Champaign looks at the impact of parental advice and youth support seeking in African American families.

Scientists have shown for the first time that Antarctic krill show a stereotypical reaction in the presence of guano from Adélie penguins: they swim faster and make more turns over greater angles. It is unknown to what kind of water-borne chemical cues they respond, but the authors speculate that this behavior might be a universal escape response to the excreta of predators, irrespective of species.

A new analysis of data collected over three years by the Dark Energy Spectroscopic Instrument (DESI) collaboration provides even stronger evidence than the group’s previous datasets that dark energy, long thought to be a “cosmological constant,” might be evolving over time in unexpected ways. Dr. Mustapha Ishak-Boushaki, professor of physics at The University of Texas at Dallas, is co-chair of the DESI working group that interprets cosmological survey data gathered by the international collaboration.