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07/27/2010

Caltech Astronomer Finds Planets in Unusually Intimate Dance around Dying Star

Kathy Svitil

Hundreds of extrasolar planets have been found, most solitary worlds orbiting their parent star in seeming isolation. Further observation has revealed that planets come in bunches. Most systems contain planets orbiting too far from one another to feel each other's gravity. In a handful of cases, planets have been found near enough to one another to interact gravitationally. Now, however, Caltech's John A. Johnson and his colleagues have found two systems with pairs of gas giant planets locked in an intimate orbital embrace.

07/15/2010

Astronomers Discover an Unusual Cosmic Lens

Kathy Svitil

Astronomers at Caltech and Ecole Polytechnique Fédérale de Lausanne (EPFL) in Switzerland have discovered the first known case of a distant galaxy being magnified by a quasar acting as a gravitational lens. The discovery, based in part on observations done at the W. M. Keck Observatory on Hawaii's Mauna Kea, is being published July 16 in the journal Astronomy & Astrophysics.

06/24/2010

Caltech Scientists Test Air Flow Over the 2010 World Cup Soccer Ball

Marcus Woo

The World Cup is in full swing, complete with an official new soccer ball named Jabulani, meaning "to celebrate" in Zulu. The players, however, aren't exactly celebrating. Instead, many of them are complaining that the ball's trajectory is too hard to predict. So what exactly is it about the new ball that's provoking all the controversy? To find out, Caltech engineers put an official Jabulani through its paces in the Lucas Adaptive Wall Wind Tunnel.

06/22/2010

A Mine for Dark Matter

Marcus Woo

Deep in a mine 230 stories underground, physicists are trying to detect dark matter, the mysterious stuff that makes up nearly a quarter of the universe. Last December, tantalizing rumors of a major discovery by the Cryogenic Dark Matter Search (CDMS) set the physics world abuzz. The Caltech collaborators describe their experiment.

05/17/2010

Schooling Fish Offer New Ideas for Wind Farming

Jon Weiner

The quest to derive energy from wind may soon be getting some help from California Institute of Technology (Caltech) fluid-dynamics expert John Dabiri-and a school of fish.

04/21/2010

Caltech Researchers Create "Sound Bullets"

Kathy Svitil

Taking inspiration from a popular executive toy ("Newton's cradle"), researchers at Caltech have built a device—called a nonlinear acoustic lens—that produces highly focused, high-amplitude acoustic signals dubbed "sound bullets." The acoustic lens and its sound bullets (which can exist in fluids—like air and water—as well as in solids) have the potential to revolutionize applications from medical imaging and therapy to the nondestructive evaluation of materials and engineering systems.

04/16/2010

Astronomical Society of the Pacific Honors Caltech Achievements

Heidi Aspaturian

A constellation of Caltechers has been honored this week by the Astronomical Society of the Pacific, the world's largest general astronomy society. The ASP announced eight 2010 awards for "excellence in astronomy research and education," four of them recognizing people and programs affiliated with the Caltech community.

03/24/2010

The Light and Sound Fantastic

Douglas Smith

Producing coherent light on a microchip is old hat—LED lasers underpin our high-tech world, appearing in gadgets ranging from DVD players and supermarket checkout scanners to digital data lines. A new chip-compatible component developed at Caltech can produce coherent sound as well, and even interconvert the two. Who knows where this marriage of sound and light might lead?

02/24/2010

Caltech Receives More than $33 Million from American Recovery and Reinvestment Act

Jon Weiner

Research in genomic sciences, astronomy, seismology, and neuroeconomics are some of the many projects being funded at the California Institute of Technology (Caltech) by the American Recovery and Reinvestment Act (ARRA).

02/03/2010

Caltech Physicist Named National Security Science and Engineering Faculty Fellow

Jon Weiner

Caltech's H. Jeff Kimble named National Security Science and Engineering Faculty Fellow.

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