Inquiry & Impact

The pursuit of knowledge through research, teaching, and learning, with impact at the FAS and beyond

Harvard study predicts most suicide attempts a week in advance
Psychology professor Matthew Nock seated on a gray couch in front of a red wall

Harvard study predicts most suicide attempts a week in advance

Researcher Matthew Nock pioneered the technique of using smartphone technology to survey high-risk adults and adolescents in real time. In a new study, Nock and his team report using the technology to predict 75 percent of suicide attempts in the week before they occurred.

What sprawling light pollution does to fireflies
Fireflies in a field

What sprawling light pollution does to fireflies

As the sun sinks below the horizon, two scientists perch quietly beside a darkening field and wait for flashes of light. They have traveled far outside the city in search of research sites, because they study a group of creatures that have been driven to the margins of human settlements: fireflies.

At Harvard Forest, doomed eastern hemlocks found to further future generations
Small, newly regrown hemlock trees under larger old-growth forest

At Harvard Forest, doomed eastern hemlocks found to further future generations

Sixteen years ago, an invasive pest called the woolly adelgid arrived at Harvard Forest and slowly began to devastate its the eastern hemlocks — as they had done in forcce elsewhere. Since then, Harvard Forest scientists have begun to study how to manage the demise of its so-called foundation species.

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Alarm over menstrual tracking apps
Professor Sarah Richardson in her office at Harvard University

Alarm over menstrual tracking apps

Menstrual tracking apps have become all the rage, leading the growing field of “femtech” that claims to help women understand — and regulate — their bodies. But these apps may promise more than they deliver — and even be harmful to women.

The optimal diet? Kitchen experiment leads scientist to answer
Professor Dan Lieberman and Tonia Prescott in their kitchen. Lieberman stirs a pot on the stove and Prescott holds a tomato.

The optimal diet? Kitchen experiment leads scientist to answer

For most of his life, Daniel Lieberman has dedicated his mind to studying the evolution of the human body. In his latest project, he also devoted his body — specifically his digestive tract — to science.

What if Emmett Till had made it safely home?
Sarah Lewis and Rev. Wheeler Parker Jr. stand before the Mississippi barn where Emmett Till was tortured and killed in 1955

What if Emmett Till had made it safely home?

Professor Sarah Lewis’s curated exhibition, “If Emmett Till Lived: Freedom on American Ground,” opened September 10 at the Museum of Contemporary Photography in Chicago.

How to build an evolutionary trap for viruses
M.D./Ph.D. student Vaibhav Mohanty, at left, with Eugene Shakhnovich, Roy G. Gordon Professor of Chemistry, used a chalkboard to illustrate their fitness landscape design (FLD).

How to build an evolutionary trap for viruses

Two Harvard scientists describe a way to engineer the evolutionary landscape that viruses experience, pushing them away from dangerous variants and into evolutionary dead ends.

Mapping source of volcanic activity deep within the Earth
Geophysicist Xiyuan Bao behind the wheel of his car

Mapping source of volcanic activity deep within the Earth

Upon moving to Cambridge, geophysicist Xiyuan Bao often relied on navigation software to find his way through the unfamiliar network of roads. He realized the same technology could help him find something else: a solution to a mystery deep within the Earth.

Measuring the mental toll of a rising sea
The coastline of the Okun Alfa neighborhood, where the sea reaches directly up to the steps of a home

Measuring the mental toll of a rising sea

Coastal erosion, worsened by climate change, is consuming West African communities on the Gulf of Guinea. A team led by the Salata Institute’s Emmanuel Akyeampong surveyed 450 residents on the mental health impacts of the destruction.