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.
Wednesday, October 10, 2007 - 1:43pm
Senior Trustee William T. Golden Dies at 97
Senior trustee William T. Golden died on Sunday October 7 at the age of 97. Bill Golden was an icon of American science policy, and the Carnegie Institution was privileged to have his support and guidance for more than 35 years.
Thursday, July 15, 2010 - 8:10am
New Revelations about Mercury’s Volcanism, Magnetic Substorms, and Exosphere from MESSENGER
Analysis of data from MESSENGER’s third and final flyby of Mercury in September 2009 has revealed evidence of younger volcanism on the innermost planet than previously recognized, new information about magnetic substorms, and the first observations of emission from an ionized species in Mercury’s very thin atmosphere or exosphere.
Tuesday, June 4, 2013 - 11:20am
Carnegie Announces New Science Education Programs
The Carnegie Academy for Science Education (CASE) was awarded a grant to run two special career exploration programs for students who attend public schools in the District of Columbia. The program is called SciLife™-DC.
Friday, February 18, 2011 - 4:23pm
A Solar System Family Portrait, from the Inside Out
The MESSENGER spacecraft has captured the first portrait of our Solar System from the inside looking out. Comprised of 34 images, the mosaic provides a complement to the Solar System portrait – that one from the outside looking in – taken by Voyager 1 in 1990.
Friday, December 19, 2008 - 1:35pm
Carnegie Wins Grant to Preserve Historic Photos
The Carnegie Institution has been awarded a $9,400 grant from the Center for History of Physics, American Institute of Physics, to preserve and enhance access to a collection of historic photographs of scientific instruments and apparatus in the archives of the Department of Terrestrial Magnetism (DTM). The collection spans five decades from 1904 to the 1950s and includes thousands of images important to the history of geophysics, atomic physics, and astronomy.
Friday, August 3, 2012 - 10:06am
Supernova progenitor found?
Type Ia supernovae are violent stellar explosions. Observations of their brightness are used to determine distances in the universe and have shown scientists that the universe is expanding at an accelerating rate. But there is still too little known about the specifics of the processes by which these supernovae form. New research led by Carnegie identifies a star, prior to explosion, which will possibly become a type Ia supernova.
Wednesday, September 12, 2012 - 10:33pm
Gut bacteria increase fat absorption
You may think you have dinner all to yourself, but you’re actually sharing it with a vast community of microbes waiting within your digestive tract. A new study from a team including Carnegie’s Steve Farber and Juliana Carten reveals that some gut microbes increase the absorption of dietary fats, allowing the host organism to extract more calories from the same amount of food.
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, October 29, 2007 - 8:01am
Mellon Awards Carnegie Grant for Ecological Monitoring in South Africa
The Andrew W. Mellon Foundation awarded a $750,000 grant to the Carnegie Institution’s Department of Global Ecology for an intensive pilot study of ecosystem diversity in South Africa’s Kruger National Park. This research will contribute to the park’s “adaptive management” program, which uses science to improve the chances that the park’s ecosystems, including their complex vegetative and animal populations, are sustained into the future.
Wednesday, August 11, 2010 - 5:08am
Arctic Rocks Offer New Glimpse of Primitive Earth
Scientists have discovered a new window into the Earth's violent past. Geochemical evidence from volcanic rocks collected on Baffin Island in the Canadian Arctic suggests that beneath it lies a region of the Earth's mantle that has largely escaped the billions of years of melting and geological churning that has affected the rest of the planet. Researchers believe the discovery offers clues to the early chemical evolution of the Earth.
Wednesday, July 23, 2008 - 9:53am
DTM’s Richard Carlson to Receive 2008 N. L. Bowen Award from AGU
Carnegie geochemist Richard Carlson will receive the 2008 Norman L. Bowen Award from the American Geophysical Union. Named in honor of pioneering experimental petrologist and long-time Geophysical Laboratory staff member Norman Bowen, the award is given annually for outstanding contributions to volcanology, geochemistry or petrology.
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.
Thursday, February 13, 2014 - 1:00am
News briefing: Global warming’s record-setting pace
The pace of global warming over the last century has been about twice as rapid over land than over the oceans and will continue to be more dramatic going forward if emissions are not curbed. According to an analysis of 27 climate models by Carnegie’s Chris Field, if we continue along the current emissions trajectory, we are likely facing the most rapid large climate change in the last 65 million years. This will clearly pose great challenges for a variety of terrestrial ecosystems.
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.
Thursday, July 3, 2008 - 2:08pm
Acidifying Oceans Add Urgency to CO2 Cuts
Stanford, CA— It’s not just about climate change anymore. Besides loading the atmosphere with heat-trapping greenhouse gases, human emissions of carbon dioxide have also begun to alter the chemistry of the ocean—often called the cradle of life on Earth. The ecological and economic consequences are difficult to predict but possibly calamitous, warn a team of chemical oceanographers in the July 4 issue of Science, and halting the changes already underway will likely require even steeper cuts in carbon emissions than those currently proposed to curb climate change.
Wednesday, April 17, 2013 - 10:29am
Reproductive tract secretions elicit ovulation
Eggs take a long time to produce in the ovary, and thus are one of a body’s precious resources. It has been theorized that the body has mechanisms to help the ovary ensure that ovulated eggs enter the reproductive tract at the right time in order to maximize the chance of successful fertilization. New research from Carnegie's Allan Spradling and Jianjun Sun has shed light on how successful ovulation and fertilization are brought about by studying these processes in fruit flies. They found that secretions from special glands within the fruit fly’s reproductive tract contribute to both ovulation and sperm function, and that this secretion is controlled by a specific hormone receptor gene, called Hr39. Their results suggest that Lrh-1, a mammalian receptor gene closely related to Hr39, also regulates ovulation by controlling reproductive tract secretions in mammals.
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.
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.