Science and Technology
Photons, Electrons, Silicon: Caltech’s Electric Light Orchestra

Amnon Yariv, Azita Emami, Kerry Vahala, and Ali Hajimiri Credit: EAS Communications Office/Caltech Caltech has long brought together masters from many fields to create the unimaginable. In the field of silicon photonics, in particular, the open and collaborative culture of the Division of Engineering and Applied Science has allowed for the assembly of an incredible orchestra of scientific expertise. Silicon (Si) wafers have for decades…

Sleeping With the (Zebra) Fishes

David Prober Credit: Caltech People can reject food and control their thirst, but we cannot keep from falling asleep. Even though we spend a third of our lives asleep and treat the prevalence of sleep…

JPL’s Spitzer Space Telescope Hears Stellar ‘Heartbeat’ from Planetary Companion

This illustration shows how the planet HAT-P-2b, left, appears to cause heartbeat-like pulsations in its host star, HAT-P-2. Image credit: NASA/JPL-Caltech A planet and a star are having a tumultuous romance that can be detected…

Lasers Could Give Space Research its ‘Broadband’ Moment

Several upcoming NASA missions will use lasers to increase data transmission from space. Image Credit: NASA's Goddard Space Flight Center/Amber Jacobson, producer Thought your Internet speeds were slow? Try being a space scientist for a…

Caltech Mourns the Passing of Alumnus Warren G. Schlinger, Clean Energy Pioneer

Katharine Stewart Schlinger and Warren G. Schlinger at the 2010 dedication of Caltech's Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering Chemical engineer and philanthropist Warren G. Schlinger (BS ’44, MS ’46, PhD…

Caltech Astronomer Receives $1 Million Prize Given for “Outstanding Scientific, Technological, Cultural or Social Impact on Our World”

Left: Shrinivas (Shri) Kulkarni, Right: Distinguished Alumni Award Recipient Neil Gehrels (PhD ’82, Physics); Credit: Caltech Shrinivas (Shri) Kulkarni, the John D. and Catherine T.…

NASA Studies a Rarity: Growing Louisiana Deltas

False-color images of rising tide at Wax Lake Delta, Louisiana, made by JPL's Uninhabited Aerial Vehicle Synthetic Aperture Radar instrument on Oct. 17, 2016. Red,…

JPL’s Curiosity Rover Sharpens Paradox of Ancient Mars

Bedrock at this site added to a puzzle about ancient Mars by indicating that a lake was present, but that little carbon dioxide was in…

Caltech Engineers Build Robot Drone that Mimics Bat Flight

Soon-Jo Chung, associate professor of aerospace and Bren Scholar at Caltech, holds the Bat Bot. Credit: Caltech Bats have long captured the imaginations of scientists…

Frances Arnold Wins National Academy of Sciences’ Sackler Prize

Frances Arnold The National Academy of Sciences has awarded Caltech’s Frances Arnold the 2017 Raymond and Beverly Sackler Prize in Convergence Research for her work on directed evolution, a method used to “breed” biological enzymes useful to scientists and industry. Directed evolution, pioneered by Arnold in the 1990s, has been adopted by hundreds of laboratories around the world and has broad applications in sustainable biofuels, pharmaceuticals, and other environmentally friendly solutions to global problems. “Nature has a remarkable ability to adapt and innovate,” says Arnold. “We exploit nature’s most powerful design algorithm—evolution—and breed enzyme catalysts to make things we need…

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