Caltech

The blood–brain barrier (BBB) is a stringent, nearly impenetrable layer of cells that guards the brain, protecting the vital organ from hazards in the bloodstream such as toxins or bacteria and allowing only a very limited set of small…

When surgeons are trained, they usually need the supervision of more experienced doctors who can mentor them on their technique. That may be changing due to a new artificial intelligence system developed by Caltech researchers and Keck…

Biodegradable gloves. One hundred percent recycled copy paper. Efficient ultra-low temperature (ULT) freezers. Two biology laboratory managers at Caltech started small and encouraged other research groups to implement sustainable…

Astronomers have looked back in time to the early beginnings of the universe, a mere 650 million years after the Big Bang, and observed the baby stages of seven interacting galaxies forming into a protocluster. This protocluster is…

Cells are expert cooperators and collaborators. To maintain tissue health, cells talk to each other, exert pressure on each other, and kick out cells that are not contributing to the overall well-being of the collective. When it's time to…

Numerous Caltech graduate programs are among the best in their fields, according to the just-released rankings from U.S. News & World Report. Overall, the chemistry and Earth sciences earned top spots, ranking number one in the Best…

Spanning a test platform, a small wooden bridge held up an increasingly heavy plastic bucket as it filled with sand. After a suspenseful minute—CRACK!—the bridge collapsed in a dramatic, splintery explosion."11.775 kilograms!" announced a…

In the early hours of Monday morning, January 16, a group of sleep-deprived puzzle solvers were summoned to play a game of Red Light, Green Light. A projector displayed colors on the wall. When the light flashed green, the solvers ran…

A newly discovered phenomenon dubbed "collectively induced transparency" (CIT) causes groups of atoms to abruptly stop reflecting light at specific frequencies.CIT was discovered by confining ytterbium atoms inside an optical…

Leaning into a fictive role as a cheerful "exoplanet real estate agent," aerospace graduate student Niyati Desai described her real-life research on imaging planets in regions that are "just right" to support life: those not too hot and…