Wednesday, December 5, 2007 - 1:15pm
Astronomers find puzzling dwarf star with complex magnetic fields
Typically, little M-dwarf stars—the most common type of star in the galaxy—are cold, quiet, and dim. Now a team of astronomers led by Edo Berger, a Carnegie-Princeton postdoctoral fellow, found one M-dwarf that doesn’t conform. It has an unusually active and complex magnetic field, stronger than our own Sun’s, and a huge hot spot that covers half of its surface.
Wednesday, January 9, 2013 - 7:57pm
Preventing Climate Change: The Size of the Energy Challenge
In 2004 a very popular study aimed to address climate change by deploying wedges of different existing energy technologies or approaches. According to the study by Robert Socolow and Stephen Pacala, each wedge would avoid one billion tons of carbon (1 GtC) emissions per year after 50 years. The study showed that, at that time, seven wedges could stabilize carbon dioxide emissions relative to what would happen if things remained “business-as-usual.” A new perspective paper from a group including Carnegie’s Ken Caldeira uses the wedge approach to estimate the size of the energy challenge posed by climate change today.
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.
Thursday, June 19, 2008 - 12:27pm
New web resource to improve crop engineering
The Carnegie Institution’s Department of Plant Biology today announced the launch of a new web-based resource that promises to help researchers around the world meet increasing demands for food production, animal feed, biofuels, industrial materials, and new medicines. It is the Plant Metabolic Network (PMN) at http://www.plantcyc.org/
Tuesday, September 10, 2013 - 7:42am
Carnegie’s Rubén Rellán-Álvarez Receives Young Scientist Award
Postdoctoral fellow Rubén Rellán-Álvarez, at the Department of Plant Biology, has been awarded the prestigious Marschner Young Scientist Award by the International Plant Nutrition Colloquium. The award was established for “outstanding Ph.D. students and early-career researchers with the potential to become future research leaders.”
Tuesday, November 11, 2014 - 1:53pm
Tail discovered on long-known asteroid
A two-person team of Carnegie's Scott Sheppard and Chadwick Trujillo of the Gemini Observatory has discovered a new active asteroid, called 62412, in the Solar System's main asteroid belt between Mars and Jupiter. It is the first comet-like object seen in the Hygiea family of asteroids. Active asteroids are a newly recognized phenomenon. 62412 is only the 13th known active asteroid in the main asteroid belt. Sheppard and Trujillo estimate that there are likely about 100 of them in the main asteroid belt, based on their discovery.
Tuesday, September 18, 2007 - 11:00pm
CO2 emissions could violate EPA ocean-quality standards within decades
In a commentary in the September 25, 2007, issue of the Geophysical Research Letters (GRL), a large team of scientists state that human-induced carbon dioxide (CO2) emissions will alter ocean chemistry to the point where it will violate U.S. Environmental Protection Agency Quality Criteria  by mid-century if emissions are not dramatically curtailed now.
Tuesday, February 17, 2009 - 1:37pm
Exploring Planets in Distant Space and Deep Interiors
In recent years researchers have found hundreds of new planets beyond our solar system, raising questions about the origins and properties of these exotic worlds—not to mention the possible presence of life. Speaking at a symposium titled “The Origin and Evolution of Planets” held at the annual meeting of the American Association for the Advancement of Science, two Carnegie Institution scientists presented their perspectives on the new era of planetary exploration.
Monday, October 3, 2005 - 11:00pm
Andrew Carnegie Medals Of Philanthropy Awarded
Over 400 guests from across the globe gathered in the Scottish Parliament on Tuesday, October 4, for the presentation of the Andrew Carnegie Medal of Philanthropy 2005...
Thursday, May 15, 2014 - 7:28pm
Communicating with the world across the border
All living cells are held together by membranes, which provide a barrier to the transport of nutrients. They are also the communication platform connecting the outside world to the cell’s interior control centers. Thousands of proteins reside in these cell membranes and control the flow of select chemicals, which move across the barrier and mediate the flux of nutrients and information. Little was known about the relationships among membrane proteins and interior proteins. A team of scientists has revealed how membrane proteins were networked with each other and with the signaling proteins inside the cell.
Wednesday, September 3, 2008 - 12:42pm
Putting the Squeeze on Nitrogen for High Energy Materials
Nitrogen atoms like to travel in pairs, hooked together by one of the strongest chemical bonds in nature. By subjecting nitrogen molecules to extreme temperatures and pressures scientists are getting a new understanding of not only nitrogen but other similar molecules, including hydrogen. Hypothesized nitrogen polymers could form materials with higher energy content than any known non-nuclear material.
Monday, March 17, 2008 - 8:44am
Controlling a sea of information
Curators at one of the world’s most widely used biological databases, The Arabidopsis Information Resource, or TAIR, have joined forces with the journal Plant Physiology, to solve the “flood of information” dilemma.
Friday, March 23, 2012 - 12:47pm
Mountaintop Blasting to Mine the Sky with the Giant Magellan Telescope
Astronomers began to blast 3 million cubic feet of rock from a mountaintop in the Chilean Andes today to prepare for the world’s largest telescope at the Carnegie Institution’s Las Campanas Observatory. Over the next few months, more than 70 controlled blasts will break up the rock while leaving a solid bedrock foundation for the telescope and its precision scientific instruments.More information about the telescope is here
Tuesday, February 21, 2012 - 6:44pm
Plant toughness: Key to cracking biofuels?
Along with photosynthesis, the plant cell wall is one of the features that most set plants apart from animals. A structural molecule called cellulose is necessary for the manufacture of these walls. Cellulose is synthesized in a semi-crystalline state that is essential for its function in the cell wall function, but the mechanisms controlling its crystallinity are poorly understood. New research from a team including current and former Carnegie scientists reveals key information about this process, as well as a means to reduce cellulose crystallinity, which is a key stumbling block in biofuels development.
Monday, April 29, 2013 - 12:57pm
No Redoubt: Volcanic Eruption Forecasting Improved
Forecasting volcanic eruptions with success is heavily dependent on recognizing well-established patterns of pre-eruption unrest in the monitoring data. But in order to develop better monitoring procedures, it is also crucial to understand volcanic eruptions that deviate from these patterns. New research from a team led by Carnegie’s Diana Roman retrospectively documented and analyzed the period immediately preceding the 2009 eruption of the Redoubt volcano in Alaska, which was characterized by an abnormally long period of pre-eruption seismic activity that’s normally associated with short-term warnings of eruption.
Tuesday, June 3, 2008 - 9:06am
Revolution in Rain Forest Monitoring with MacArthur Grant
Tropical rain forests are treasure houses of biodiversity, but there has been no effective way to inventory and monitor their plant species over large areas. As a result, we have limited understanding of how climate change, clearing, invasive plants, and other threats are affecting these delicate ecosystems. A major advance in improving this situation is in the works, however. Gregory Asner of the Carnegie Institution’s Department of Global Ecology was just awarded a $1.8 million grant from the John D. and Catherine T. MacArthur Foundation to create a database of plant chemical and remote sensing signatures for tropical forest species.