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    Over the past few years, Dr. Sheppard and his team have been performing the largest and deepest survey ever attempted of our Solar System’s fringes. In December 2018, he announced the most-distant object ever observed in our Solar System. His team’s work has shown that the farthest-out-there objects—beyond the Kuiper Belt and the influence of the known major planets—are strangely grouped together in space.

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A nearby system hosts the first Earth-sized planet discovered by NASA’s Transiting Exoplanets Survey Satellite, as well as a warm sub-Neptune-sized world. This milestone sets the path for finding smaller planets around even smaller stars, and those planets may potentially be habitable.

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Tiny fragments of plastic in the ocean are consumed by sea anemones along with their food, and bleached anemones retain these microfibers longer than healthy ones, according to new research from Carnegie’s Manoela Romanó de Orte, Sophie Clowez, and Ken Caldeira. Their work is the first-ever investigation of the interactions between plastic microfibers and sea anemones, which are closely related to corals and can help scientists understand how coral reef ecosystems are affected by the millions of tons of plastic contaminating the world’s oceans.

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Michael Diamreyan, a Johns Hopkins University undergraduate biophysics student with a Carnegie connection, has been awarded two prestigious research grants to further his independent investigations.  He is a member of Carnegie Embryology Director Yixian Zheng’s laboratory team, in collaboration with the department’s bioinformatician, Frederick Tan.

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The creation of new library of mutants of the single-celled photosynthetic green alga Chlamydomonas reinhardtii enabled a Carnegie- and Princeton University-led team of plant scientists to identify more than 300 genes that are potentially required for photosynthesis. Photosynthesis is the process by which plants, algae, and some bacteria convert energy from sunlight into carbohydrates—filling our planet’s atmosphere with oxygen as a byproduct.

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The Carnegie-Spitzer-IMACS (CSI) survey, currently underway at the Magellan-Baade 6.5m telescope in Chile, has been specifically designed to characterize normal galaxies and their environments at a distance of about 4 billion years post Big Bang, expresses by astronomers as  z=1.5. The survey...
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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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In mammals, most lipids, such as fatty acids and cholesterol, are absorbed into the body via the small intestine. The complexity of the cells and fluids that inhabit this organ make it very difficult to study in a laboratory setting. The goal of the Farber lab is to better understand the cell and...
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Science in the Neighborhood Series
Wednesday, April 24, 2019 - 6:30pm to 8:30pm

Butterflies are well known for the beautiful colors and patterns that decorate their wings. They function to attract mates, provide camouflage, or ward off predators. Many colors are created by...

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Broad Branch Road Neighborhood Lectures
Thursday, April 25, 2019 - 6:30pm to 7:45pm

Gravity, the fundamental force that shaped our planet, varies across the Earth’s surface, both from place to place and over time. For more than three centuries, scientists have made gravity...

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Astronomy Lecture Series
Monday, April 29, 2019 - 7:00pm to 8:45pm

Like people, each of the billions of galaxies in the universe developed its own unique traits over a complicated lifetime. Until recently, astronomers have only been able to study galaxies closest...

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Matthew Evans wants to provide new tools for plant scientists to engineer better seeds for human needs. He focuses on one of the two phases to their life cycle. In the first phase, the sporophyte is the diploid generation—that is with two similar sets of chromosomes--that undergoes meiosis to...
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Cosmochemist Larry Nittler studies extraterrestrial materials, including meteorites and interplanetary dust particles (IDPs), to understand the formation of the Solar System, the galaxy, and the universe and to identify the materials involved. He is particularly interested in developing new...
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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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LaPaz Icefield 02342 seen here in thin section under polarized light courtesy of  Carles Moyano-Cambero.
April 15, 2019

Washington, DC—An ancient sliver of the building blocks from which comets formed was discovered encased inside a meteorite like an insect in amber by a Carnegie-led research team. The finding, published by Nature Astronomy, could offer clues to the formation and evolution of our Solar System.

Meteorites were once part of larger bodies, asteroids, which broke up due to collisions in space and survived the trip through the Earth’s atmosphere. Their makeup can vary substantially from meteorite to meteorite, reflecting their varying origin stories in different parent bodies that formed in different parts of the Solar System. Asteroids and comets both formed from the disk

Artist's conception of HD 21749c, the first Earth-sized planet found by NASA's Transiting Exoplanets Survey Satellite (TESS) by Robin Dienel courtesy of Carnegie Institution for Science
April 15, 2019

Pasadena, CA—A nearby system hosts the first Earth-sized planet discovered by NASA’s Transiting Exoplanets Survey Satellite, as well as a warm sub-Neptune-sized world, according to a new paper from a team of astronomers that includes Carnegie’s Johanna Teske, Paul Butler, Steve Shectman, Jeff Crane, and Sharon Wang.

Their work is published in The Astrophysical Journal Letters.

“It’s so exciting that TESS, which launched just about a year ago, is already a game-changer in the planet-hunting business,” said Teske, who is second author on the paper. “The spacecraft surveys the sky and we collaborate with the TESS follow-up

Anemone. California, Monterey Bay National Marine Sanctuary. Photographer: Dr. Dwayne Meadows, NOAA/NMFS/OPR.
March 28, 2019

Washington, DC—Tiny fragments of plastic in the ocean are consumed by sea anemones along with their food, and bleached anemones retain these microfibers longer than healthy ones, according to new research from Carnegie’s Manoela Romanó de Orte, Sophie Clowez, and Ken Caldeira.

Their work, published by Environmental Pollution, is the first-ever investigation of the interactions between plastic microfibers and sea anemones. Anemones are closely related to corals and can help scientists understand how coral reef ecosystems are affected by the millions of tons of plastic contaminating the world’s oceans.

One of the most-common types of plastics in the

Michael Diamreyan with Yixian Zheng, Frederick Tan, and Minjie Hu courtesy of Navid Marvi, Carnegie Embryology.
March 21, 2019

Baltimore, MD—Michael Diamreyan, a Johns Hopkins University undergraduate biophysics student with a Carnegie connection, has been awarded two prestigious research grants to further his independent investigations.  He is a member of Carnegie Embryology Director Yixian Zheng’s laboratory team, in collaboration with the department’s bioinformatician, Frederick Tan.

Diamreyan received an ASPIRE Grant (formerly called DURA grants), which recognizes “exceptional undergraduate students” from the Krieger School of Arts and Sciences at Johns Hopkins University (JHU) with funding for independent research projects. He was also named an Amgen Scholar, which

April 24, 2019

Butterflies are well known for the beautiful colors and patterns that decorate their wings. They function to attract mates, provide camouflage, or ward off predators. Many colors are created by pigments within the scales, but others, especially blues and greens, are produced by a remarkable phenomenon known as structural coloration.

In structural coloration, nanostructures, which are smaller than the wavelength of light, amplify certain colors and diminish others to create dazzling hues. On April 24th, Dr. Nipam Patel will describe a number of butterfly species that use structural coloration, and recent genetic and cellular insights into how scale cells generate the necessary

April 25, 2019

Gravity, the fundamental force that shaped our planet, varies across the Earth’s surface, both from place to place and over time. For more than three centuries, scientists have made gravity measurements to define the shape of the Earth. Today, very precise measurements of gravity provide crucial information on the mass distribution and transport within the planet. In this talk, Dr. Le Mével will highlight the long history of the determination of the gravity field, from the first field expeditions to the era of satellite measurements, and will discuss the evolution of the instrumentation. She will then show how gravity studies are used to image magmatic systems under

April 29, 2019

Like people, each of the billions of galaxies in the universe developed its own unique traits over a complicated lifetime. Until recently, astronomers have only been able to study galaxies closest to the Milky Way in detail, leaving much of the universe's history a mystery. Dr. Strom will show how astronomers are now using the world's largest telescopes to determine the chemical DNA of even very distant galaxies, and how this information is answering key questions about how galaxies like our own formed and evolved.

Dr. Allison Strom: Carnegie-Princeton Fellow, Carnegie Observatories

#GalaxyDNA

May 23, 2019

In shock-wave experiments, high-powered lasers or guns are used to send a supersonic pressure wave through a sample. This type of dynamic compression can generate immense pressure and allows for the study of impact phenomena in real time. These experiments have wide applications for Earth and planetary science, ranging from understanding the effects of meteorite impacts to studying the structure of planetary interiors. Dynamic experiments are short-lived, generally having a duration of tens of billionths of a second. This requires the development of ultrafast experiments. In this talk, Tracy will review new results using high-intensity pulsed x-rays to examine the crystal structure of

The Carnegie Airborne Observatory (CAO), developed by GregAsner, is a fixed-wing aircraft that sweeps laser light across the vegetation canopy to image it in brilliant 3-D. The data can determine the location and size of each tree at a resolution of 3.5 feet (1.1 meter), a level of detail that is unprecedented. By combining field surveys with this airborne mapping and high-resolution satellite monitoring the team has been able to detail myriad ecological features of forests around the world.

As one example, Carnegie scientists with the Peruvian Ministry of Environment mapped the true extent of gold mining in the biologically diverse region of Madre de Dios in the Peruvian Amazon.

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 institution. The fellowships are extremely competitive, and are prized for their independence and for the resources they afford the fellows. The fellowships vary in duration depending on the research area. Each fellow is key to ehnancing the Carnegie mission and expanding Carnegie's influence of unfettered, imaginative scientific research into the next generations.  For information about

Carnegie will receive Phase II funding through Grand Challenges Explorations, an initiative created by the Bill & Melinda Gates Foundation that enables individuals worldwide to test bold ideas to address persistent health and development challenges. Department of Plant Biology Director Wolf Frommer,  with a team of researchers from the International Rice Research Institute, Kansas State University, and Iowa State University, will continue to pursue an innovative global health research project, titled “Transformative Strategy for Controlling Rice Blight.”

Rice bacterial blight is one of the major challenges to food security, and this project aims to

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 very first time.”  The income from this endowed fund will enable high school students and undergraduates to conduct mentored internships at Carnegie’s Geophysical Laboratory and Department of Terrestrial Magnetism in Washington, DC starting in the summer of 2017.

Marilyn Fogel’s thirty-three year career at Carnegie’s Geophysical Laboratory (1977-2013), followed

Staff member emeritus François Schweizer studies galaxy assembly and evolution by observing nearby galaxies, particularly how collisions and mergers affect their properties. His research has added to the awareness that these events are dominant processes in shaping galaxies and determining their stellar and gaseous contents.

When nearby galaxies collide and merge they yield valuable clues about processes that occurred much more frequently in the younger, distant universe. When two gas-rich galaxies collide, their pervasive interstellar gas gets compressed, clumps into dense clouds, and fuels the sudden birth of billions of new stars and thousands of star clusters.

Cosmochemist Larry Nittler studies extraterrestrial materials, including meteorites and interplanetary dust particles (IDPs), to understand the formation of the Solar System, the galaxy, and the universe and to identify the materials involved. He is particularly interested in developing new techniques to analyze different variants of the same atom—isotopes—in small samples. In related studies, he uses space-based X-ray and gamma-ray instrumentation to determine the composition of planetary surfaces. He was part of the 2000-2001 scientific team to hunt for meteorites in Antarctica.

Nittler is especially interested in presolar grains contained in meteorites and in what

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 cell-signaling and cell-organizational events as they unfold.

These methods allow his lab to investigate plant cell development and structure and molecular genetics to understand the organization and dynamic behaviors of molecules and organelles. The group tackles how cells generate asymmetries and specific shapes. A current focus is how the cortical microtubule cytoskeleton— an

Alycia Weinberger wants to understand how planets form, so she observes young stars in our galaxy and their disks, from which planets are born. She also looks for and studies planetary systems.

Studying disks surrounding nearby stars help us determine the necessary conditions for planet formation. Young disks contain the raw materials for building planets and the ultimate architecture of planetary systems depends on how these raw materials are distributed, what the balance of different elements and ices is within the gas and dust, and how fast the disks dissipate.

Weinberger uses a variety of observational techniques and facilities, particularly ultra-high spatial-