Quick action by astronomers worldwide leadsto new insights on mysterious gamma-ray bursts

Scientists "arriving quickly on the scene" of an October 4 gamma-ray burst have announced that their rapid accumulation of data has provided new insights about this exotic astrophysical phenomenon. The researchers have seen, for the first time, ongoing energizing of the burst afterglow for more than half an hour after the initial explosion.

The findings support the "collapsar" model, in which the core of a star 15 times more massive than the sun collapses into a black hole.

Caltech computer scientists develop FAST protocol to speed up Internet

Caltech computer scientists have developed a new data transfer protocol for the Internet fast enough to download a full-length DVD movie in less than five seconds.

The protocol is called FAST, standing for Fast Active queue management Scalable Transmission Control Protocol (TCP). The researchers have achieved a speed of 8,609 megabits per second (Mbps) by using 10 simultaneous flows of data over routed paths, the largest aggregate throughput ever accomplished in such a configuration.

Caltech applied physicists create ultrahigh-Q microcavity on a silicon chip

In an advance that holds promise for integrating previously disparate functions on a chip, applied physicists at the California Institute of Technology have created a disk smaller than the diameter of a human hair that can store light energy at extremely high efficiency.

The Martian polar caps are almost entirelywater ice, Caltech research shows

Reporting in the February 14 issue of the journal Science, Caltech planetary science professor Andy Ingersoll and his graduate student, Shane Byrne, present evidence that the decades-old model of the polar caps being made of dry ice is in error.

Caltech, Italian Scientists Find Human Longevity Marker

Study of centenarians showed each was five times more likely than the general population to have a similar mtDNA mutation.

Nanodevice breaks 1-GHz barrier

Nanoscientists have achieved a milestone in their burgeoning field by creating a device that vibrates a billion times per second, or at one gigahertz (1 GHz).

Research shows that shear force of blood flowis crucial to embryonic heart development

In a triumph of bioengineering, an interdisciplinary team of California Institute of Technology researchers has imaged the blood flow inside the heart of a growing embryonic zebrafish.

Caltech, UCLA Researchers Create a New Gene Therapy for Treatment of HIV

New gene therapy that is highly effective in preventing the HIV virus.

Clouds discovered on Saturn's moon Titan

Teams of astronomers at the California Institute of Technology and at the University of California, Berkeley, have discovered methane clouds near the south pole of Titan, resolving a fierce debate about whether clouds exist amid the haze of the moon's atmosphere.

The new observations were made using the W. M. Keck II 10-meter and the Gemini North 8-meter telescopes atop Hawaii's Mauna Kea volcano in December 2001. Both telescopes are outfitted with adaptive optics that provide unprecedented detail of features not seen even by the Voyager spacecraft during its flyby of Saturn and Titan.

New Theory Accounts for Existence of Binaries in Kuiper Belt

In the last few years, researchers have discovered more than 500 objects in the Kuiper belt, a gigantic outer ring in the outskirts of the solar system, beyond the orbit of Neptune. Of these, seven so far have turned out to be binaries--two objects that orbit each other. The surprise is that these binaries all seem to be pairs of widely separated objects of similar size. This is surprising because more familiar pairings, such as the Earth/moon system, tend to be unequal in size and/or rather close together.

Pages

Subscribe to RSS - research_news