Wednesday, February 6, 2013 - 2:28pm
Forecasting a Supernova Explosion
Type II supernovae are formed when massive stars collapse, initiating giant explosions. It is thought that stars emit a burst of mass as a precursor to the supernova explosion. If this process were better understood, it could be used to predict and study supernova events in their earliest stages. New observations from a team of astronomers including Carnegie's Mansi Kasliwal show a remarkable mass-loss event about a month before the explosion of a type IIn supernova.
Friday, January 18, 2013 - 12:32pm
Studying Ancient Earth’s Geochemistry
Researchers still have much to learn about the volcanism that shaped our planet’s early history. New evidence from a team led by Carnegie’s Frances Jenner demonstrates that some of the tectonic processes driving volcanic activity, such as those taking place today, were occurring as early as 3.8 billion years ago.
Monday, July 29, 2013 - 3:55pm
How Does Hydrogen Metallize?
Hydrogen is deceptively simple. It has only a single electron per atom, but it powers the sun and forms the majority of the observed universe. As such, it is naturally exposed to the entire range of pressures and temperatures available in the whole cosmos. But researchers are still struggling to understand even basic aspects of its various forms under high-pressure conditions. New work from a team at Carnegie’s Geophysical Laboratory makes significant additions to our understanding of this vital element’s high-pressure behavior.
Monday, September 24, 2007 - 12:00am
Scientists discover how cancer may take hold
A team, led by researchers at the Carnegie Institution, has found a key biochemical cycle that suppresses the immune response, thereby allowing cancer cells to multiply unabated. The research shows how the biomolecules responsible for healthy T-cells, the body’s first defenders against hostile invaders, are quashed, permitting the invading cancer to spread. The same cycle could also be involved in autoimmune diseases such as multiple sclerosis.
Wednesday, June 10, 2009 - 10:03am
Surprise: Typhoons Trigger Slow Earthquakes
Scientists have made the surprising finding that typhoons trigger slow earthquakes, at least in eastern Taiwan. Slow earthquakes are non-violent fault slippage events that take hours or days instead of a few brutal seconds to minutes to release their potent energy. The researchers discuss their data in a study published in the June 11, issue of Nature.
Monday, March 28, 2005 - 1:00am
100 Greatest Discoveries
Carnegie molecular biologist Joseph Gall discusses the work of groundbreaking microscopists, biologists, zoologists, and geneticists with Bill Nye, "The Science Guy," as The Science Channel counts down the greatest science discoveries of our time...
Thursday, May 13, 2010 - 12:00am
Silver Tells a Volatile Story of Earth’s Origin
Tiny variations in the isotopic composition of silver in meteorites and Earth rocks are helping scientists put together a timetable of how our planet was assembled beginning 4.568 billion years ago. The new study, published in the journal Science, indicates that water and other key volatiles may have been present in at least some of Earth’s original building blocks, rather than acquired later from comets, as some scientists have suggested.
Tuesday, January 29, 2008 - 4:35pm
Magnetism loses under pressure
Scientists at the Geophysical Laboratory, with colleagues, have discovered that the magnetic strength of magnetite—the most abundant magnetic mineral on Earth—declines drastically when put under pressure.
Monday, March 2, 2009 - 3:01pm
Airborne Ecologists Help Balance Delicate African Ecosystem
The African savanna is world famous for its wildlife, especially the iconic large herbivores such as elephants, zebras, and giraffes. But managing these ecosystems and balancing the interests of the large charismatic mammals with those of other species has been a perpetual challenge for park and game mangers. Now a new study published in the Proceedings of the National Academy of Sciences reports the successful test of new remote-sensing technology to monitor the impact of management decisions on the savannah ecosystem.
Tuesday, July 26, 2011 - 3:41pm
Reforestation’s Cooling Influence--A Result of Farmer’s Past Choices
Decisions by farmers to plant on productive land with little snow enhances the potential for reforestation to counteract global warming, concludes new research from Carnegie’s Julia Pongratz and Ken Caldeira. Previous research has led scientists and politicians to believe that regrowing forests on Northern lands that were cleared in order to grow crops would not decrease global warming. But these studies did not consider the importance of the choices made by farmers in the historical past.
Tuesday, January 22, 2008 - 11:58am
Carnegie’s Stephen Shectman receives Jackson-Gwilt Medal
The Royal Astronomical Society has awarded Stephen Shectman of the Carnegie Observatories the 2008 Jackson-Gwilt Medal for his exceptional work in developing astronomical instrumentation and in constructing telescopes.
Monday, January 9, 2012 - 3:11pm
Mirror Casting Event for the Giant Magellan Telescope
On January 14, 2012, the second 8.4-meter (27.6 ft) diameter mirror for the Giant Magellan Telescope (GMT) will be cast inside a rotating furnace at the University of Arizona’s Steward Observatory Mirror Lab (SOML) underneath the campus football stadium. The Mirror Lab will host a special event to highlight the milestone. Members of the media are invited to visit the Mirror Lab on Saturday morning, January 14, 2012, between 9:00 and 11:00 a.m. MST.
Wednesday, August 18, 2010 - 4:37am
Roller Coaster Superconductivity Discovered
Superconductors are more efficient at carrying electricity than copper wires. But these materials have to be cooled below an extremely low, so-called transition temperature for electrical resistance to disappear. Researchers at the Carnegie’s Geophysical Laboratory, have unexpectedly found that the transition temperature can be induced under two different intense pressures in a three-layered bismuth oxide crystal. They believe this unusual two-step phenomena comes from competition of electronic behavior in different layers.
Tuesday, October 19, 2010 - 11:59am
Three Carnegie Scientists Chosen Nifty Fifty Lecturers for USA Science & Engineering Festival
Carnegie biogeochemist Marilyn Fogel, developmental biologist Marnie Halpern, and astronomer Stella Kafka were selected from over 500 applicants to be USA Science & Engineering Festival “Nifty Fifty” lecturers. According to the late Nobel Laureate Richard Smalley, by the end of 2010 90% of the world's scientists and engineers will live in Asia and 80% of people trained in the advanced physical sciences in the U.S. are from abroad. This first such festival is being held in Washington, D.C., to inspire interest in science.
Tuesday, September 15, 2009 - 7:18am
Carnegie’s Christopher Field To Receive Heinz Award
Palo Alto, CA— Christopher Field, director of the Carnegie Institution’s Department of Global Ecology, has been awarded a prestigious Heinz award. The awards were established by Teresa Heinz in 1993 to honor her late husband, U.S. Senator John Heinz, by recognizing “extraordinary achievements of individuals in the areas of greatest importance to him.”
Friday, February 18, 2011 - 7:16pm
Carnegie awarded new patent for diamond creation
The U.S. Patent & Trademark Office has issued a patent to the Carnegie Institution for a method of creating high quality diamond crystals larger than 10 carats.
Tuesday, April 4, 2006 - 12:01pm
Gene mutation causes lethally low-fat diet
Researchers from the Carnegie Institution and the University of Pennsylvania have found a specific gene malfunction that could be responsible for diseases that limit the ability to absorb lipids...
Wednesday, December 19, 2012 - 12:08pm
Closest Sun-like star may have planets
An international team of scientists, including Carnegie’s Paul Butler, has discovered that Tau Ceti, one of the closest and most Sun-like stars, may have five planets. At a distance of twelve light years and visible with a naked eye in the evening sky, Tau Ceti is the closest single star with the same spectral classification as our Sun. Its five planets are estimated to have masses between two and six times the mass of the Earth--making it the lowest-mass planetary system yet detected.
Thursday, January 23, 2014 - 5:50pm
Are developing heart valves sensitive to environmental chemicals?
Exposure to environmental endocrine disrupters, such as bisphenol A, which mimic estrogen, is associated with adverse health effects. Bisphenol A is commonly found in plastic bottles and plastic food containers. New research on the effects of these chemicals on zebrafish shows that embryonic heart valves could be particularly in danger.
Wednesday, July 25, 2012 - 8:25am
Forest Carbon Monitoring Breakthrough in Colombia
Using new techniques, Carnegie and Colombian scientists have developed ultra-high resolution maps of the carbon stocks locked in tropical vegetation for 40% of the Colombian Amazon, an area about four times the size of Switzerland. Until now, the inability to accurately quantify carbon stocks at high spatial resolution over large areas has hindered the United Nations’ Reducing Emissions from Deforestation and Forest Degradation (REDD+) program aimed at creating a financial value for storing carbon in tropical forests.