: A blue, boron-bearing diamond with dark inclusions of a mineral called ferropericlase, which were examined as part of this study.  This gem weighs 0.03 carats.  Photo by Evan Smith/GIA.
Washington, DC—Blue diamonds—like the world-famous Hope Diamond at the National Museum of Natural History—formed up to four times deeper in the Earth’s mantle than most other...
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An illustration showing how the orbits of the newly discovered moons (bold) fit into the known orbital groupings of the Jovian moons (not bold). The "oddball" with the proposed name Valetudo orbits in the prograde, but crosses the orbits of the planet's o
Washington, DC—Twelve new moons orbiting Jupiter have been found—11 “normal” outer moons, and one that they’re calling an “oddball.”  This brings...
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Washington, DC—A team of scientists including Carnegie’s Michael Ackerson and Bjørn Mysen revealed that granites from Yosemite National Park contain minerals that crystallized at...
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Washington, DC—New work from an international team of astronomers including Carnegie’s Jaehan Bae used archival radio telescope data to develop a new method for finding very young...
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Washington, DC— NASA’s Curiosity rover has discovered new “tough” organic molecules in three-billion-year-old sedimentary rocks on Mars, increasing the chances that the record...
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Washington, DC—A team of researchers including Carnegie’s Bob Hazen is using network analysis techniques—made popular through social media applications—to find patterns in...
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Carnegie Science, Carnegie Institution, Carnegie Institution for Science, Bradley Peters
Washington, DC—Plumes of hot magma from the volcanic hotspot that formed Réunion Island in the Indian Ocean rise from an unusually primitive source deep beneath the Earth’s surface...
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Established in June of 2016 with a generous gift of $50,000 from Marilyn Fogel and Christopher Swarth, the Marilyn Fogel Endowed Fund for Internships will provide support for “very young budding scientists” who wish to “spend a summer getting their feet wet in research for the...
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Carnegie's Paul Butler has been leading work on a multiyear project to carry out the first reconnaissance of all 2,000 nearby Sun-like stars within 150 light-years of the solar system (1 lightyear is about 9.4 trillion kilometers). His team is currently monitoring about 1,700 stars, including 1...
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Superdeep diamonds are  tiny time capsules carrying unchanged impurities made eons ago and providing researchers with important clues about Earth’s formation.  Diamonds derived from below the continental lithosphere, are most likely from the transition zone (415 miles, or 670km deep...
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Alan Boss is a theorist and an observational astronomer. His theoretical work focuses on the formation of binary and multiple stars, triggered collapse of the presolar cloud that eventually made  the Solar System, mixing and transport processes in protoplanetary disks, and the formation of gas...
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Volcanologist Diana Roman is interested in the mechanics of how magma moves through the Earth’s crust, and in the structure, evolution, and dynamics of volcanic conduit systems. Her ultimate goal is to understand the likelihood and timing of volcanic eruptions. Most of Roman’s research...
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Scott Sheppard studies the dynamical and physical properties of small bodies in our Solar System, such as asteroids, comets, moons and trans-neptunian objects (bodies that orbit beyond Neptune).  These objects have a fossilized imprint from the formation and migration of the major planets in...
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Washington, D.C.— A team of Carnegie scientists have found “beautifully preserved” 15 million-year-old thin protein sheets in fossil shells from southern Maryland. Their findings are published in the...
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"Estimates range as high as there being one habitable Earth-like planet for every star in our galaxy. As someone who has lived through the ups and downs of the history of the field of...
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Washington, DC— The matter that makes up distant planets and even-more-distant stars exists under extreme pressure and temperature conditions. This matter includes members of a family of seven...
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Explore Carnegie Science

Artist’s impression of Barnard’s Star planet under the orange tinted light from the star.  Credit: IEEC/Science-Wave - Guillem Ramisa
November 14, 2018

Washington, DC—An international team including five Carnegie astronomers has discovered a frozen Super-Earth orbiting Barnard’s star, the closest single star to our own Sun. The Planet Finder Spectrograph on Carnegie’s Magellan II telescope was integral to the discovery, which is published in Nature.

Just six light-years from Earth, Barnard’s star is our fourth-closest neighboring star overall, after Alpha Centauri’s triple-star system. It is smaller and older than our Sun and among the least-active known red dwarfs.

To find this cold Super-Earth, the team—which included Carnegie’s Paul Butler, Johanna Teske, Jeff Crane, Steve

Mars mosaic courtesy of NASA
October 31, 2018

Washington, DC—Mars’ organic carbon may have originated from a series of electrochemical reactions between briny liquids and volcanic minerals, according to new analyses of three Martian meteorites from a team led by Carnegie’s Andrew Steele published in Science Advances.

The group’s analysis of a trio of Martian meteorites that fell to Earth—Tissint, Nakhla, and NWA 1950—showed that they contain an inventory of organic carbon that is remarkably consistent with the organic carbon compounds detected by the Mars Science Laboratory’s rover missions.

In 2012, Steele led a team that determined the organic carbon found in 10 Martian

NASEM astrobiology briefing artwork
October 10, 2018

Washington, DC—NASA should incorporate astrobiology into all stages of future exploratory missions, according to a new report from the National Academies of Sciences, Engineering, and Medicine presented Wednesday by the chair of the study, University of Toronto’s Barbara Sherwood Lollar, and by Carnegie’s Alan Boss, one of the report’s 17 expert authors.

Astrobiology addresses the factors that allowed life to originate and develop in the universe and investigates whether life exists on planets other than Earth. This highly interdisciplinary and constantly adapting field incorporates expertise in biology, chemistry, geology, planetary science, and physics.

October 4, 2018

Sarah Stewart was awarded a prestigious MacArthur fellowship for: “Advancing new theories of how celestial collisions give birth to planets and their natural satellites, such as the Earth and Moon.”

Stewart is currently a professor in the Department of Earth and Planetary Sciences at the University of California Davis. Her group studies the formation and evolution of planetary bodies by using shock wave experiments to measure the properties of materials and conducting simulations of planetary processes. She was a Carnegie postdoctoral fellow from 2002 to 2003. For more see Macfound.org

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The MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) mission to orbit Mercury following three flybys of that planet is a scientific investigation of the planet Mercury. Understanding Mercury, and the forces that have shaped it is fundamental to understanding the terrestrial planets and their evolution. This is the first orbital mission around the innermost planet. It took years of planning and complex trajectory to reach Mercury. Carnegie scientists have led the way revealing results that have redefined what we thought we knew about Mercury and the other rocky planets. For more information see http://messenger.jhuapl.edu/

High-elevation, low relief surfaces are common on continents. These intercontinental plateaus influence river networks, climate, and the migration of plants and animals. How these plateaus form is not clear. Researchers are studying the geodynamic processes responsible for surface uplift in the Hangay in central Mongolia to better understand the origin of high topography in continental interiors.

This work focuses on characterizing the physical properties and structure of the lithosphere and sublithospheric mantle, and the timing, rate, and pattern of surface uplift in the Hangay. They are carrying out studies in geomorphology, geochronology, thermochronology, paleoaltimetry,


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 intended to foster entirely new directions of research by teams of scientists that ignore departmental boundaries. Up to six adventurous investigations may be funded each year. The period of the award is two

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.

Anat Shahar is pioneering a field that blends isotope geochemistry with high-pressure experiments to examine planetary cores and the Solar System’s formation, prior to planet formation, and how the planets formed and differentiated. Stable isotope geochemistry is the study of how physical and chemical processes can cause isotopes—atoms of an element with different numbers of neutrons-- to separate (called isotopic fractionation). Experimental petrology is a lab-based approach to increasing the pressure and temperature of materials to simulate conditions in the interior Earth or other planetary bodies.

Rocks and meteorites consist of isotopes that contain chemical

Alan Boss is a theorist and an observational astronomer. His theoretical work focuses on the formation of binary and multiple stars, triggered collapse of the presolar cloud that eventually made  the Solar System, mixing and transport processes in protoplanetary disks, and the formation of gas giant and ice giant protoplanets. His observational works centers on the Carnegie Astrometric Planet Search project, which has been underway for the last decade at Carnegie's Las Campanas Observatory in Chile.

While fragmentation is universally recognized as the dominant formation mechanism for binary and multiple stars, there are still major questions. The most important of these

Earth scientist Robert Hazen has an unusually rich research portfolio. He is trying to understand the carbon cycle from deep inside the Earth; chemical interactions at crystal-water interfaces; the interactions of organic molecules on mineral surfaces as a possible springboard to life; how life arose from the chemical to the biological world; how life emerges in extreme environments; and the origin and distribution of life in the universe  just to name a few topics. In tandem with this expansive Carnegie work, he is also the Clarence Robinson Professor of Earth Science at George Mason University. He has authored more than 350 articles and 20 books on science, history, and music.

Erik Hauri studies how planetary processes affect the chemistry of the Earth, Moon and other objects. He also uses that chemistry to understand the origin and evolution of planetary bodies.

The minerals that are stable in planetary interiors determine how major elements such as silicon, magnesium, iron, calcium, aluminum, titanium, sodium and sometimes water are distributed, and how they behave when melting occurs and  when magmas are generated and transported to the surface in volcanoes.

The presence of water, carbon and other so-called volatiles have a large influence on the strength and melting point of planetary interiors. This in turn determines where magmas are