11/05/2007 08:00:00
Jill Perry
What are the ultimate limits to miniaturization? How small can machinery--with internal workings that move, turn, and vibrate--be produced? What is the smallest scale on which computers can be built? With uncanny and characteristic insight, these are questions that the legendary Caltech physicist Richard Feynman asked himself in the period leading up to a famous 1959 lecture, the first on a topic now called nanotechnology.
10/11/2007 07:00:00
elisabeth nadin
Children born with a rare genetic disorder that can lead to debilitating and irreversible brain injury may find protection with the aid of brain imaging and a modified diet.
10/01/2007 07:00:00
A team of California Institute of Technology researchers has found an unexpected link connecting schizophrenia and autism to the importance of covering your mouth whenever you sneeze.
09/21/2007 07:00:00
elisabeth nadin
NASA has given the go-ahead to restart an astrophysics mission that will provide a greater capability for using high-energy Xrays to detect black holes than any existing instrument has.
09/12/2007 07:00:00
Kathy Svitil
An unusual population of the darkest, most lightweight galaxies known has shed new light on a cosmic conundrum. Astronomers used the W. M. Keck Observatory in Hawaii to show that the recently uncovered dwarf galaxies each contain 99 percent of a mysterious type of matter known as dark matter. Dark matter has gravitational effects on ordinary atoms but does not produce any light. It accounts for the majority of the mass in the universe.
09/12/2007 07:00:00
Robert Tindol
A team of American and Canadian scientists has devised a new way to study Earth's past climate by analyzing the chemical composition of ancient marine fossils. The first published tests with the method further support the view that atmospheric CO2 has contributed to dramatic climate variations in the past, and strengthen projections that human CO2 emissions could cause global warming.
09/04/2007 07:00:00
Scott Kardel
Astronomers from the California Institute of Technology and the University of Cambridge have developed a new camera that produces much more detailed pictures of stars and nebulae than even the Hubble Space Telescope, and it does all this from here on Earth.
08/06/2007 07:00:00
Robert Tindol
An international team of astronomers has discovered the largest-radius and lowest-density exoplanet of all those whose mass and radius are known. It is a gas-giant planet about twice the size of Jupiter, and is likely to have a curved cometlike tail. It has been named TrES-4, to indicate that it is the fourth planet detected by the Trans-atlantic Exoplanet Survey (TrES) network of telescopes.
08/01/2007 07:00:00
Kathy Svitil
The stranglehold of nicotine addiction leads to more than four million smoking-related deaths each year. Scientists at the California Institute of Technology have now explained two roots of that addiction. The discoveries may offer new hope not just for smokers, but eventually also for sufferers of Parkinson's disease, a debilitating movement disorder that affects some 40 million people worldwide.
07/13/2007 07:00:00
Robert Tindol
A team of European and American astronomers has announced the discovery of the best evidence yet for the nature of the star systems that explode as type Ia supernovae. The team obtained a unique set of observations with the European Southern Observatory's Very Large Telescope and the Keck I 10-meter telescope in Hawaii.