Big Ideas

A look at a few of our big picture priorities that improve Penn as we create knowledge to benefit the world.

Vials labeled "SARS-CoV-2 COVID-19 Vaccine" lit up with neon light on a machine filling them.

The COVID landscape after a year with vaccines

In a conversation hosted by LDI, experts from Penn, the Black Doctors COVID-19 Consortium, and the Coalition for Epidemic Preparedness Innovations discussed the vaccine rollout, boosters, misinformation, and more.

chemicals representing geoengineering float over a city skyline.

Before geoengineering, some fundamental chemistry

Research led by Joseph S. Francisco of the School of Arts & Sciences examines the chemistry of a proposal to curb climate change’s effects—creating a sunshade in the upper atmosphere made of sulfuric acid—and finds that there’s more work to do to successfully pull off such a feat.