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.

Katherine Unger Baillie

On the hunt for new exoplanets

A state-of-the-art instrument called NEID, from the Tohono O’odham word meaning “to see,” has officially started its scientific mission: discovering new planets outside of the solar system.

Erica K. Brockmeier

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In the News


From rocks to icebergs, the natural world tends to break into cubes

Douglas Jerolmack of the School of Arts & Sciences commented on his research, which finds that when natural structures break apart, they tend to fragment into cube-like shapes. He said the findings could help geologists calculate the size of rocks breaking off cliff faces, among other applications.


A squid’s eye view

Alison Sweeney of the School of Arts and Sciences discussed the complex structure of squids’ eyes, which have special lenses that allow for crisp vision in dark water. “The resolution of their eyes is approaching that of humans, their retinas are much more sensitive than ours are to light, and if you dig into the nitty-gritty of how nature figured it out, I’m forever blown away at the level of nuance to get it to work.”


Philadelphia Inquirer

Penn's Electric Race Car Team Seeks Fourth Title in Four Years

Eighty undergrads from a variety of departments, including Connor Sendel of the Wharton School and the School of Engineering and Applied Science, are building an electric car with four-wheel drive with hopes of winning two competitions this June.