Dr. Eric Isaacs Begins as 11th President of the Carnegie Institution for Science

Dr. Eric D. Isaacs begins his tenure as the 11th president of the Carnegie Institution on July 2, 2018.  Isaacs joins Carnegie from the University of Chicago where he has been the Robert A. Millikan Distinguished Service Professor, Department of Physics and the James Franck Institute Executive Vice President for Research, Innovation and National Laboratories. 


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    Earthquakes, floods, tsunamis, hurricanes, and volcanoes—they all stem from the very same forces that give our planet life. It is only when these forces exceed our ability to withstand them that they become disasters. Science and engineering can be used to understand extreme events and to design our cities to be resilient, but we must overcome the psychological drive to normalization that keeps humanity from believing that we could experience anything worse than what we have already survived.

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New work from the Carnegie Supernova Project provides the best-yet calibrations for using type Ia supernovae to measure cosmic distances, which has implications for our understanding of how fast the universe is expanding and the role dark energy may play in driving this process. Led by Carnegie astronomer Chris Burns, the team’s findings are published in The Astrophysical Journal.  

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How much of a reef’s ability to withstand stressful conditions is influenced by the type of symbiotic algae that its corals hosts? New work from a team including Carnegie's Arthur Grossman investigates how the the abundance and diversity of nutrients that algae share with their coral  hosts varies between species and what this could mean for coral’s ability to survive in a changing climate.  The research team determined that in the wake of a bleaching event, even an algal tenant that’s poor provider may be better than no provider.

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The interactions that take place between the species of microbes living in the gastrointestinal system often have large and unpredicted effects on health, according to new work led by Carnegie’s Will Ludington, who assembled a team of biologists, physicists, and mathematicians to comprehensively reveal the gut microbiome ecosystem of fruit flies. 

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A supernova discovered by an international group of astronomers including Carnegie’s Tom Holoien and Maria Drout, and Carnegie alumnus Ben Shappee of the University of Hawaii, provides an unprecedented look at the first moments of a violent stellar explosion. The light from the explosion's first hours showed an unexpected pattern, which Carnegie's Anthony Piro analyzed to reveal that the genesis of these phenomena is even more mysterious than previously thought.

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Carnegie is renowned for its post-doctoral and graduate student fellowship programs, which operate on each of the Carnegie campuses. Our fellows participate fully in the institution’s vigorous intellectual life, and have complete access to the laboratory instruments and facilities at the...
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CALL FOR PROPOSALS Following Andrew Carnegie’s founding encouragement of liberal discovery-driven research, the Carnegie Institution for Science offers its scientists a new resource for pursuing bold ideas. Carnegie Science Venture grants are internal awards of up to $100,000 that are...
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The Earthbound Planet Search Program has discovered hundreds of planets orbiting nearby stars using telescopes at Lick Observatory, Keck Observatory, the Anglo-Australian Observatory, Carnegie's Las Campanas Observatory, and the ESO Paranal Observatory.  Our multi-national team has been...
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Plants are not as static as you think. David Ehrhardt combines confocal microscopy with novel visualization methods to see the three-dimensional movement  within live plant cells to reveal the other-worldly cell choreography that makes up plant tissues. These methods allow his group to explore...
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Josh Simon uses observations of nearby galaxies to study problems related to dark matter, chemical evolution, star formation, and the process of galaxy evolution. In one area he looks at peculiarly dark galaxies. Interestingly, some galaxies are so dark they glow with the light of just a few...
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Integrity of hereditary material—the genome —is critical for species survival. Genomes need protection from agents that can cause mutations affecting DNA coding, regulatory functions, and duplication during cell division. DNA sequences called transposons, or jumping genes (discovered by...
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December 14, 2018

Pasadena, CA— Miguel Roth, director of Carnegie’s Las Campanas Observatory in Chile from 1990 to 2014 and the current representative of the Giant Magellan Telescope Organization (GMTO) in Chile was awarded the Bernardo O’Higgins Order by the Chilean Foreign Affairs Ministry in Santiago today. The honor is in recognition “of his contribution to the development of astronomy in Chile, and for inspiring appreciation and knowledge of astronomy among students and people of all ages.”

The award is the highest civilian honor for non-Chileans. O’Higgins was one of the founders of the Chilean Republic. The award was established in 1965 to recognize

An artist’s conception of a type Ia supernova exploding, courtesy of ESO.
December 11, 2018

Pasadena, CA—New work from the Carnegie Supernova Project provides the best-yet calibrations for using type Ia supernovae to measure cosmic distances, which has implications for our understanding of how fast the universe is expanding and the role dark energy may play in driving this process. Led by Carnegie astronomer Chris Burns, the team’s findings are published in The Astrophysical Journal.  

Type Ia supernovae are fantastically bright stellar phenomena. They are violent explosions of a white dwarf—the crystalline remnant of a star that has exhausted its nuclear fuel—which is part of a binary system with another star.

In addition to being

A bright field image of the anemone Aiptasia populated with its symbiotic algae.
December 6, 2018

Stanford, CA—How much of the ability of a coral reef to withstand stressful conditions is influenced by the type of algae that the corals hosts?

Corals are marine invertebrates from the phylum called cnidarians that build large exoskeletons from which colorful reefs are constructed. But this reef-building is only possible because of a mutually beneficial relationship between the coral and various species of single-celled algae called dinoflagellates that live inside the cells of coral polyps.

The algae are photosynthetic—meaning capable of converting the Sun’s energy into chemical energy for food, just like plants. And the exchange of nutrients between the

Super-resolution image of fly gut crypts colonized by the native Lactobacillus (red) and Acetobacter (green) bacteria. Fly cell nuclei appear blue. Image is courtesy of Benjamin Obadia.
December 4, 2018

Baltimore, MD—The interactions that take place between the species of microbes living in the gastrointestinal system often have large and unpredicted effects on health, according to new work from a team led by Carnegie’s Will Ludington. Their findings are published this week in Proceedings of the National Academy of Sciences.

The gut microbiome is an ecosystem of hundreds to thousands of microbial species living within the human body.  The sheer diversity within the human gut presents a challenge to cataloging and understanding the effect these communities have on our health.

Biologists are particularly interested in determining whether or not the

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The Geophysical Laboratory has made important advances in the growth of diamond by chemical vapor deposition (CVD).  Methods have been developed to produce single-crystal diamond at low pressure having a broad range of properties.

The Carnegie Hubble program is an ongoing comprehensive effort that has a goal of determining the Hubble constant, the expansion rate of the universe,  to a systematic accuracy of 2%. As part of this program, astronomers are obtaining data at the 3.6 micron wavelength using the Infrared Array Camera (IRAC) on Spitzer Space Telescope. The team has demonstrated that the mid-infrared period-luminosity relation for Cepheids, variable stars used to determine distances and the rate of the expansion,  at 3.6 microns is the most accurate means of measuring Cepheid distances to date. At 3.6 microns, it is possible to minimize the known remaining systematic uncertainties in the Cepheid

The fund supports a postdoctoral fellowship in astronomy that rotates between the Carnegie Science departments of Terrestrial Magnetism in Washington, D.C., and the Observatories in Pasadena California. 

Andrew Steele joins the Rosetta team as a co-investigator working on the COSAC instrument aboard the Philae lander (Fred Goesmann Max Planck Institute - PI). On 12 November 2014 the Philae system will be deployed to land on the comet and begin operations. Before this, several analyses of the comet environment are scheduled from an approximate orbit of 10 km from the comet. The COSAC instrument is a Gas Chromatograph Mass Spectrometer that will measure the abundance of volatile gases and organic carbon compounds in the coma and solid samples of the comet.

Geochemist and director of Terrestrial Magnetism, Richard Carlson, looks at the diversity of the chemistry of the early solar nebula and the incorporation of that chemistry into the terrestrial planets. He is also interested in questions related to the origin and evolution of Earth’s continental crust.

  Most all of the chemical diversity in the universe comes from the nuclear reactions inside stars, in a process called nucleosynthesis. To answer his questions, Carlson developes novel procedures using instruments called mass spectrometers to make precise measurements of isotopes--atoms of an element with different numbers of neutrons--of Chromium (Cr), strontium (Sr),

Zhiyong Wang was appointed acting director of Department of Plant Biology in 2018.

Wang’s research aims to understand how plant growth is controlled by environmental and endogenous signals. Being sessile, plants respond environmental changes by altering their growth behavior. As such, plants display high developmental plasticity and their growth is highly sensitive to environmental conditions. Plants have evolved many hormones that function as growth regulators, and growth is also responsive to the availability of nutrients and energy (photosynthates).

To understand how plant cells perceive and transduce various regulatory signals, and how combinations of complex

The entire universe—galaxies, stars, and planets—originally condensed from a vast network of tenuous, gaseous filaments, known as the intergalactic medium, or the gaseous cosmic web. Most of the matter in this giant reservoir has never been incorporated into galaxies; it keeps floating about in intergalactic space, largely in the form of ionized hydrogen gas.

 Michael Rauch is interested in all aspects of the intergalactic medium. He uses large telescopes, like the Magellans, to take spectra—light that reveals the chemical makeup of distant objects— of background quasars, which are highly energetic and extremely remote. He is looking for evidence of

Rebecca Bernstein combines observational astronomy with developing new instruments and techniques to study her objects of interest. She focuses on formation and evolution of galaxies by studying the chemistry of objects called extra galactic globular clusters—old, spherical compact groups of stars that are gravitationally bound. She also studies the stellar components of clusters of galaxies and is engaged in various projects related to dark matter and dark energy—the invisible matter and repulsive force that make up most of the universe.

 Although Bernstein joined Carnegie as a staff scientist in 2012, she has had a long history of spectrographic and imaging