Gravity Measurements Confirm Subsurface Ocean on Enceladus

Using gravity measurements collected by NASA's Cassini spacecraft, scientists have confirmed that Saturn's moon Enceladus harbors a large subsurface ocean near its south pole, fueling plumes first seen in 2005.

Quantum Photon Properties Revealed in Another Particle—the Plasmon

For years, researchers have been interested in developing quantum computers—the theoretical next generation of technology that will outperform conventional computers. Instead of holding data in bits, the digital units used by computers today, quantum computers store information in units called "qubits." One approach for computing with qubits relies on the creation of two single photons that interfere with one another in a device called a waveguide.

New Method Could Improve Ultrasound Imaging

One day while casually reading a review article, Caltech chemical engineer Mikhail Shapiro came across a mention of gas vesicles—tiny gas-filled structures used by some photosynthetic microorganisms to control buoyancy. It was a light-bulb moment. Shapiro is always on the lookout for new ways to enhance imaging techniques such as ultrasound or MRI, and the natural nanostructures seemed to be just the ticket to improve ultrasound imaging agents.

BICEP2 Discovers First Direct Evidence of Inflation and Primordial Gravitational Waves

Astronomers announced today that they have acquired the strongest confirmation yet of cosmic inflation theories, which say the universe expanded by 100 trillion trillion times in less than the blink of an eye.

An Equation to Describe the Competition Between Genes

"The thing that makes this study really interesting is that we did our calculations before we ever did any experiments," says Rob Phillips, the Fred and Nancy Morris Professor of Biophysics and Biology at Caltech.

Research Update: Battling Infection With Microbes

In the recent study the researchers found that beneficial gut bacteria were necessary for the development of innate immune cells—specialized types of white blood cells that serve as the body's first line of defense against invading pathogens.

Bending the Light with a Tiny Chip

Imagine that you pull out your cell phone to show a presentation or a video on YouTube. But you don't use the tiny screen; your phone projects a bright, clear image onto a wall or a big screen. Such a technology may be on its way, thanks to a new light-bending silicon chip.

Building Artificial Cells Will Be a Noisy Business

Erik Winfree, professor of computer science, computation and neutral systems, and bioengineering, explains, "I tend to think of cells as really small robots. Biology has programmed natural cells, but now engineers are starting to think about how we can program artificial cells."

Detection of Water Vapor in the Atmosphere of a Hot Jupiter

Researchers at Caltech and several other institutions have made the first detection of water in the atmosphere of a Jupiter-mass planet orbiting the nearby star tau Boötis.

A New Laser for a Faster Internet

A new laser developed by a research group at Caltech holds the potential to increase by orders of magnitude the rate of data transmission in the optical-fiber network—the backbone of the Internet.


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