Researchers demonstrate existenceof earthquake supershear phenomenon

As if folks living in earthquake country didn't already have enough to worry about, scientists have now identified another rupture phenomenon that can occur during certain types of large earthquakes. The only question now is whether the phenomenon is good, bad, or neutral in terms of human impact.

Most distant object in solar system discovered; could be part of never-before-seen Oort cloud

A planetoid more than eight billion miles from Earth has been discovered by researchers led by a scientist at the California Institute of Technology. The new planetoid is more than three times the distance of Pluto, making it by far the most distant body known to orbit the sun.

Caltech mineralogy professor George Rossman wins Feynman Prize for teaching excellence

Ever wonder what becomes of the type of kid who keeps a rock collection?

Planetary scientists find planetoid in Kuiper Belt; could be biggest yet discovered

Planetary scientists at the California Institute of Technology and Yale University on Tuesday night discovered a new planetoid in the outer fringes of the solar system.

Caltech geophysicists gain new insights on Earth's core–mantle boundary

Earth's core–mantle boundary is a place none of us will ever go, but researchers using a special high-velocity cannon have produced results showing there may be molten rock at this interface at about 1,800 miles. Further, this molten rock may have rested peacefully at the core-mantle boundary for eons.

Atmospheric scientists still acquire samples the old-fashioned way--by flying up and getting them

Just as Ishmael always returned to the high seas for whales after spending time on land, an atmospheric researcher always returns to the air for new data.

Old Caltech Telescope Yields New Science

Mike Brown uses Robinson scope to find weather on Titan.

Atmospheric researchers present new findingson the natural hydrogen cycle

Two months after a pivotal study on the potential impact of a future hydrogen economy on the environment, further evidence is emerging on what would happen to new quantities of hydrogen released into the atmosphere through human activity.

Gravity Variations Predict Earthquake Behavior

PASADENA, Calif. — In trying to predict where earthquakes will occur, few people would think to look at Earth's gravity field.

Hydrogen economy might impactEarth's stratosphere, study shows

According to conventional wisdom, hydrogen-fueled cars are environmentally friendly because they emit only water vapor -- a naturally abundant atmospheric gas. But leakage of the hydrogen gas that can fuel such cars could cause problems for the upper atmosphere, new research shows.

In an article appearing this week in the journal Science, researchers from the California Institute of Technology report that the leaked hydrogen gas that would inevitably result from a hydrogen economy, if it accumulates, could indirectly cause as much as a 10-percent decrease in atmospheric ozone.

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