LOOK DEEPER Unbreakable materials lead to unbreakable bonds. At UC San Diego’s CaliBaja Center, engineering professor and director Olivia Graeve has brought together some of the biggest brains in the U.S. and Mexico to tackle the smallest of engineering challenges: developing hyper-durable nanoparticles. But she doesn’t stop there. Here, at the No. 1 university in the nation for women in STEM , she’s uniting students from both countries in a summer research program. Proof that artifi cial borders can’t hold back the power of a common goal. lookdeeper.ucsd.edu BestColleges.com, 2016