Carnegie Institution for Science

Chemical fingerprints of ancient supernovae found

A Carnegie-based search of nearby galaxies for their oldest stars has uncovered two stars in the Sculptor dwarf galaxy that were born shortly after the galaxy formed, approximately 13 billion years ago. The ...

dateMar 23, 2015 in Astronomy
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Drought led to massive 'dead zone' in Lake Erie

Lake Erie just can't catch a break. The lake has experienced harmful algal blooms and severe oxygen-depleted "dead zones" for years, but now a team of researchers led by Carnegie's Anna Michalak and Yuntao ...

dateJan 06, 2015 in Environment
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Hormones that guide root growth rates revealed

A plant's roots grow and spread into the soil, taking up necessary water and minerals. The tip of a plant's root is a place of active cell division followed by cell elongation, with different zones dedicated ...

dateApr 09, 2015 in Biotechnology
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Most stars are born in clusters, some leave 'home'

New modeling studies from Carnegie's Alan Boss demonstrate that most of the stars we see were formed when unstable clusters of newly formed protostars broke up. These protostars are born out of rotating clouds ...

dateSep 24, 2014 in Astronomy
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Drought damage leads to widespread forest death

The 2000-2003 drought in the American southwest triggered a widespread die-off of forests around the region. A Carnegie-led team of scientists developed a new modeling tool to explain how and where trembling ...

dateMar 30, 2015 in Environment
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Found: Planets skimming a star's surface

A new planet-hunting survey has revealed planetary candidates with orbital periods as short as four hours and so close to their host stars that they are nearly skimming the stellar surface. If confirmed, these candidates ...

dateOct 11, 2013 in Astronomy
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Does dark magma lurk in deep Earth?

(Phys.org) —A key to understanding Earth's evolution is to look deep into the lower mantle—a region some 400 to 1,800 miles (660 to 2,900 kilometers) below the surface, just above the core. Data have ...

dateNov 13, 2014 in Earth Sciences
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Food-delivery process inside seeds revealed

Inside every seed is the embryo of a plant, and in most cases also a storage of food needed to power initial growth of the young seedling. A seed consists mainly of carbohydrates and these have to be is transported ...

dateMar 20, 2015 in Biotechnology
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Tail discovered on long-known asteroid

A two-person team of Carnegie's Scott Sheppard and Chadwick Trujillo of the Gemini Observatory has discovered a new active asteroid, called 62412, in the Solar System's main asteroid belt between Mars and ...

dateNov 11, 2014 in Space Exploration
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Very distant galaxy cluster confirmed

The structures and star populations of massive galaxies appear to change as they age, but much about how these galaxies formed and evolved remains mysterious. Many of the oldest and most massive galaxies ...

dateMay 21, 2014 in Astronomy
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New survey tools unveil two celestial explosions

Developed to help scientists learn more about the complex nature of celestial objects in the universe, astronomical surveys have been cataloguing the night sky since the beginning of the 20th century. The ...

dateOct 16, 2013 in Astronomy
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Earth's lower mantle chemistry breakthrough

Breaking research news from a team of scientists led by Carnegie's Ho-kwang "Dave" Mao reveals that the composition of the Earth's lower mantle may be significantly different than previously thought. These ...

dateMay 22, 2014 in Earth Sciences
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