Wednesday, August 18, 2010 - 3:37am
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.
Monday, March 28, 2005 - 12:00am
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...
Wednesday, May 12, 2010 - 11:00pm
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.
Monday, June 2, 2008 - 7:15am
Carnegie Launches Math for America Chapter in D.C.
The Carnegie Institution’s Carnegie Academy for Science Education (CASE) has launched a partnership with Math for America (MfA) to improve the mathematics education of Washington, D.C., public and charter school students.
Wednesday, March 21, 2012 - 8:48am
Mercury’s Surprising Core and Landscape Curiosities
As reported in one of two papers published today on Science Express, scientists have found that Mercury’s core, already suspected to occupy a greater fraction of the planet's interior than do the cores of Earth, Venus, or Mars, is even larger than anticipated. The companion paper shows that the elevation ranges on Mercury are much smaller than on Mars or the Moon and indicates that there have been large-scale changes to Mercury’s topography since early in the planet’s geological history.
Friday, January 25, 2008 - 10:13am
Earth’s getting “soft” in the middle
A new study suggests that material in part of the lower mantle has unusual electronic characteristics that make sound propagate more slowly, suggesting that the material there is softer than previously thought.
Tuesday, July 22, 2008 - 3:32pm
Carnegie’s Alan Cutler receives James H. Shea Award for Science Writing
The National Association of Geoscience Teachers has awarded the 2008 James H. Shea Award to science writer Alan Cutler at the Carnegie Institution. The Shea Award is given annually. Other winners of the Shea Award include Science magazine writer Richard Kerr, Pulitzer Prize winner John McPhee, and Stephen Jay Gould.
Monday, January 9, 2012 - 2:11pm
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.
Monday, April 21, 2008 - 9:56am
Plate Tectonics Meets the Ice Ages in North American Landscapes
Tanya Atwater of the University of California, Santa Barbara, gave the final Capital Science Lecture for the 2007-2008 season on April 17th. Her engaging talk included computer animations, maps, and more to explore the interaction of some of North America’s large-scale topographic features and its many striking landforms. The tectonic features were created over long periods via plate tectonics, while the landforms developed during the recent ice ages. Atwater showed how they have interacted to produce some of the most stunning scenery in this part of the world.
Monday, June 15, 2009 - 7:18am
Advance in understanding cellulose synthesis
Cellulose makes up plant cell walls, gives plants shape and form and is a target of renewable, plant-based biofuels research. But how it forms, and thus how it can be modified to design energy-rich crops, is not well understood. Now a study led by researchers at Plant Biology has discovered that the underlying protein network that provides the scaffolding for cell-wall structure is also the traffic cop for delivering critical growth-promoting molecules where needed.
Thursday, August 12, 2010 - 8:55am
Asteroid Found in Gravitational “Dead Zone”
There are places in space where the gravitational tug between a planet and the Sun balance out, allowing other smaller bodies to remain stable called Lagrangian points. So-called Trojan asteroids have been found in some of these stable spots near Jupiter and Neptune. Now Scott Sheppard at the Carnegie’s Department of Terrestrial Magnetism and Chad Trujillo have discovered the first Trojan asteroid in a difficult-to-detect stability region at Neptune—the Lagrangian L5 point.
Wednesday, April 6, 2011 - 12:57pm
Under pressure: germanium
Although its name may make many people think of flowers, the element germanium is part of a frequently studied group of elements, called IVa, which could have applications for next-generation computer architecture as well as implications for fundamental condensed matter physics. New research reveals details of the element’s transitions under pressure. Their results show extraordinary agreement with the predictions of modern condensed matter theory.
Wednesday, November 16, 2011 - 8:54am
Scientists Tackle the Carbon Conundrum
Scientists, including Carnegie's Anna Michalak, have developed a new, integrated, ten-year science plan to better understand the details of Earth’s carbon cycle. It identifies new research areas such as the role of humans as agents and managers of carbon cycling and climate change, the direct impact of greenhouse gases on ecosystems including changes to plant and animal diversity and ocean acidification, the need to address social concerns, and how best to communicate results to the public and decision makers.
Friday, August 9, 2013 - 6:20am
Deep Earth Heat Surprise
Researchers, including Alex Goncharov, have for the first time experimentally mimicked the pressure conditions of Earths’ deep mantle to measure thermal conductivity using a new measurement technique on the mantle material magnesium oxide (MgO). They found that heat transfer is lower than other predictions, with total heat flow across the Earth of about 10.4 terawatts, about 60 % of the power used today by civilization. They also found that conductivity has less dependence on pressure conditions than predicted.
Monday, April 5, 2010 - 12:27pm
For Stem Cells, Practice Makes Perfect
Multipotent stem cells have the capacity to develop into different types of cells by reprogramming their DNA. In a new study, researchers from the Carnegie Institution for Science have found that reprogramming is imperfect in the early stages of differentiation, with some genes turned on and off at random. As cell divisions continue, the stability of the differentiation process increases by a factor of 100.