Winter Session 2027 registration is now open

Registration is now open for Cornell University’s online Winter Session. Classes run Jan. 4–22, giving students the opportunity to explore an interest, fulfill a requirement, or earn credits before the spring semester.  

Around Cornell

Light-activated opioid painkiller may work without dangerous side effects

An experimental opioid painkiller designed to be reversibly switched on and off with different light frequencies may eliminate the dangerous side effects of current opioids, according to a study co-led by Weill Cornell medicine researchers.

Support may offset stigma for parents of children with mental health problems

Parents of children with mental health problems may experience stigma when the ideals that matter most to being considered a “good parent” are perceived as not being met, according to research co-led by Weill Cornell Medicine.

Fluorescent imaging tracks metabolism of cells in real time

Researchers designed a new, faster form of two-photon fluorescence imaging for observing cell metabolism in real time, a method that could enable quicker screening of new therapeutic treatments.  

A synthetic answer to the squeak in aging joints 

Two Cornell researchers join forces to produce a substance that could keep knees, hips and shoulders gliding smoothly for a lifetime.

‘Medicines that feed us’ promote healing in a toxic world

In a new book, anthropologist Stacey Langwick explores plant-based healing and sustainable farming practices in Tanzania that treat bodies and lands as inseparable.

New technique holds promise for improved gene editing

A new engineered gene editing system addresses some of the limitations of current gene editing tools with the hope of improving their use for research, for better crops or to treat diseases.   

Your immune system is amazing. A physician-scientist wants you to know why

A new book, “Your Immune System,” written by Gary Koretzky ’78, vice provost for research and a professor emeritus of medicine at Weill Cornell Medicine, aims to demystify immunology for laypeople.

Newly discovered cell helps shape blood vessel growth in the heart

Researchers at Weill Cornell Medicine, working with zebrafish, have discovered a new cell type that may help regulate blood vessel growth in the heart during development and in response to injury.