Astronomy Stories
It isn’t often that our Capital Science Evening speaker hints at soon-to-be-breaking news right from the stage. Tuesday night, Pierre Cox, Director of the Atacama Large Milimiter/submillimeter...
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Alycia Weinberger
Washington, DC—Carnegie’s Alycia Weinberger and collaborators from the University of Texas at Austin and the Korean Astronomy and Space Science Institute received last month a $1.2...
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Rendering of the Giant Magellan Telescope courtesy of the GMTO.
Washington, DC—The National Academies of Science, Engineering, and Medicine Thursday ranked the U.S. Extremely Large Telescope program as a top strategic priority, recommending federal support...
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Pasadena, CA—Astronomer Ana Bonaca, for whom the Milky Way galaxy is laboratory to explore the evolution of the universe, has joined the Carnegie Observatories as a Staff Scientist. Bonaca...
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Washington, DC—A team of Carnegie astronomers was awarded $1.4 million from the Heising-Simons Foundation to develop an ambitious and versatile infrared spectrograph for the Magellan telescopes...
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NG4321 galaxy. Credit: ALMA (ESO/NAOJ/NRAO)/PHANGS, S. Dagnello (NRAO)
Pasadena, CA—A team of astronomers, including Carnegie’s Guillermo Blanc, used the  Atacama Large Millimeter/submillimeter Array (ALMA) to complete the first census of molecular...
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This artist's impression of the quasar P172+18. Credit: ESO/M. Kornmesser.
Pasadena, CA— The Magellan Baade telescope at Carnegie’s Las Campanas Observatory played an important role in the discovery of the most-distant known quasar with a bright radio emission,...
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3D spatial distribution of 16 spectroscopically confirmed proto-clusters.
Las Campanas Observatory—When the universe was about 350 million years old it was dark: there were no stars or galaxies, only neutral gas—mainly hydrogen—the residue of the Big Bang...
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Along with Alycia Weinberger and Ian Thompson, Alan Boss has been running the Carnegie Astrometric Planet Search (CAPS) program, which searches for extrasolar planets by the astrometric method, where the planet's presence is detected indirectly through the wobble of the host star around the...
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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. 
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The Carnegie Irvine Galaxy Survey is obtaining high-quality optical and near-infrared images of several hundred of the brightest galaxies in the southern hemisphere sky, at Carnegie’s Las Campanas Observatory to investigate the structural properties of galaxies. For more see    http...
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Gwen Rudie
Gwen Rudie studies the chemical and physical properties of very distant galaxies and their surrounding gas in order to further our understanding of the processes that are central to the formation and development of galaxies. Critical to this research is our ability to trace the raw...
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While the planets in our Solar System are astonishingly diverse, all of them move around the Sun in approximately the same orbital plane, in the same direction, and primarily in circular orbits. Over the past 25 years Butler's work has focused on improving the measurement precision of stellar...
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Johanna Teske became the first new staff member to join Carnegie’s newly named Earth and Planets Laboratory (EPL) in Washington, D.C., on September 1, 2020. She has been a NASA Hubble Fellow at the Carnegie Observatories in Pasadena, CA, since 2018. From 2014 to 2017 she was the Carnegie...
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A team of astronomers, including Carnegie’s Benjamin Shappee, Nidia Morrell, and Ian Thompson, has discovered the most-luminous supernova ever observed, called ASAS-SN-15lh. It is two...
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Pasadena, CA— Astronomer and instrumentation expert Stephen Shectman of the Carnegie Observatories has been elected to the National Academy of Sciences. Shectman investigates the large-scale...
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Quasars are supermassive black holes that sit at the center of enormous galaxies, accreting matter. They shine so brightly that they are often referred to as beacons and are among the most-distant...
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Alycia Weinberger
November 22, 2021

Washington, DC—Carnegie’s Alycia Weinberger and collaborators from the University of Texas at Austin and the Korean Astronomy and Space Science Institute received last month a $1.2 million grant from the Heising-Simons Foundation to develop an instrument for the Magellan telescopes at Carnegie’s Las Campanas Observatory in Chile that will enable breakthroughs in our understanding of the planet formation process.

Called MagNIFIES, for Magellans' Near-Infrared Five-band Immersion grating Efficient Spectrograph, the completed instrument will have the largest simultaneous spectral coverage of any high-resolution spectrograph in the world. It was the brainchild of

Rendering of the Giant Magellan Telescope courtesy of the GMTO.
November 5, 2021

Washington, DC—The National Academies of Science, Engineering, and Medicine Thursday ranked the U.S. Extremely Large Telescope program as a top strategic priority, recommending federal support for the final construction stages of the Giant Magellan Telescope, which is being built at Carnegie’s Las Campanas Observatory in Chile.

The Academies’ highly anticipated report, Pathways to Discovery in Astronomy and Astrophysics for the 2020s, was the result of its survey of the astronomy and astrophysics community regarding strategic goals and initiatives for the next 10 years.  The recommendation detailed that building an extremely large telescope “is

September 1, 2021

Pasadena, CA—Astronomer Ana Bonaca, for whom the Milky Way galaxy is laboratory to explore the evolution of the universe, has joined the Carnegie Observatories as a Staff Scientist.

Bonaca arrived this month from Harvard University where she held a prestigious Institute for Theory and Computation Fellowship. Prior to that she completed her Ph.D. in astronomy from Yale University and a master’s degree in physics from the University of Zagreb.

Bonaca studies how the uneven pull of our galaxy’s gravity affects objects called globular clusters—spheres made up of a million stars bound together and orbiting a galactic core. The Milky Way is enveloped by a

June 29, 2021

Washington, DC—A team of Carnegie astronomers was awarded $1.4 million from the Heising-Simons Foundation to develop an ambitious and versatile infrared spectrograph for the Magellan telescopes at Carnegie’s Las Campanas Observatory in Chile that will enable breakthroughs in understanding cosmology, galaxy evolution, and exoplanet atmospheres.

Spearheaded by instrument lead Nicholas Konidaris and project scientists Andrew Newman and Gwen Rudie of the Carnegie Observatories, the project, called the Magellan Infrared Multiobject Spectrograph, or MIRMOS, will expand researchers’ view of the sky in the infrared wavelengths of the spectrum and significantly advance

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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 selection is done using the Spitzer Space Telescope Legacy fields, which provides as close a selection by stellar mass as possible.

Using the IMACS infrared camera, the survey goal is to study galaxies down to low light magnitudes. The goal is to reduce the variance in the density of massive galaxies at these distances and times to accurately trace the evolution of the galaxy mass

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. 

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 collecting data for 30 years, using the Precision Doppler technique.  Highlights of this program include the detection of five of the first six exoplanets, the first eccentric planet, the first multiple planet system, the first sub-Saturn mass planet, the first sub-Neptune mass planet, the first terrestrial mass planet, and the first transit planet.Over the course of 30 years we have

The Giant Magellan Telescope will be one member of the next class of super giant earth-based telescopes that promises to revolutionize our view and understanding of the universe. It will be constructed in the Las Campanas Observatory in Chile. Commissioning of the telescope is scheduled to begin in 2021.

The GMT has a unique design that offers several advantages. It is a segmented mirror telescope that employs seven of today’s largest stiff monolith mirrors as segments. Six off-axis 8.4 meter or 27-foot segments surround a central on-axis segment, forming a single optical surface 24.5 meters, or 80 feet, in diameter with a total collecting area of 368 square meters. The GMT

Nick Konidaris is a staff scientist at the Carnegie Observatories and Instrument Lead for the SDSS-V Local Volume Mapper (LVM). He works on a broad range of new optical instrumentation projects in astronomy and remote sensing. Nick's projects range from experimental to large workhorse facilities. On the experimental side, he recently began working on a new development platform for the 40-inch Swope telescope at Carnegie's Las Campanas Observatory that will be used to explore and understand the explosive universe.

 Nick and his colleagues at the Department of Global Ecology are leveraging the work on Swope to develop a new airborne spectrograph that will be

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

Johanna Teske became the first new staff member to join Carnegie’s newly named Earth and Planets Laboratory (EPL) in Washington, D.C., on September 1, 2020. She has been a NASA Hubble Fellow at the Carnegie Observatories in Pasadena, CA, since 2018. From 2014 to 2017 she was the Carnegie Origins Postdoctoral Fellow—a joint position between Carnegie’s Department of Terrestrial Magnetism (now part of EPL) and the Carnegie Observatories.

Teske is interested in the diversity in exoplanet compositions and the origins of that diversity. She uses observations to estimate exoplanet interior and atmospheric compositions, and the chemical environments of their formation