Is Cornell or Caltech generally more prestigious for science?

For pure science prestige, Caltech is more often perceived as the more specialized, elite name, especially in physics, astronomy, mathematics, planetary science, and closely related engineering fields.

Caltech tends to suit students who want a highly technical environment where most classmates are deeply committed to STEM and undergraduate research can be central to the academic experience from early on. The culture is demanding and collaborative, but the range of non-STEM programs and campus activities is narrower than at a large university.

Cornell carries enormous scientific respect too, but its prestige is broader rather than as singularly identified with basic science. It is especially strong for biological sciences, environmental and earth sciences, agriculture, materials science, computer science, engineering, and interdisciplinary work. Cornell’s scale also creates more majors, research labs, professional-school connections, and opportunities to combine science with fields such as policy, business, design, or the humanities.

So, people in science may give Caltech a slight edge as a concentrated science-and-technology powerhouse, while Cornell is viewed as a major research university with exceptional strength across many scientific areas. For a student choosing between them, scientific fit matters more than the small difference in general perception.