The violent event that likely preceded our Solar System’s formation holds the solution to a longstanding meteorite mystery, says new work from Carnegie’s Alan Boss published in The Astrophysical Journal.

Watercolor illustration of Drosophila, courtesy Carnegie Institution for Science

Recent work from Carnegie’s Chenhui Wang and Allan Spradling reveals a surprising capability of renal stem cells in fruit flies—remodeling. Their work, which could eventually guide kidney stone treatments, was published by Science Advances.

Star trails over the Magellan telescopes at Las Campanas courtesy Leon Aslan.

The ancestors of some of the largest galaxy clusters have been hiding in plain sight. New work led by Carnegie’s Andrew Newman demonstrates a new technique for identifying the precursors of the most extreme galactic environments. The team’s findings are published in Nature

Illustration of a plant growing on a computer chip purchased from Shutterstock.

New work led by Carnegie’s Zhiyong Wang untangles a complex cellular signaling process that’s underpins plants’ ability to balance expending energy on growth and defending themselves from pathogens. These findings, published in Nature Plants, show how plants use complex cellular circuits to process information and respond to threats and environmental conditions.  

Chlamydomonas photo courtesy of Natasha and Natalie Rothhausen.

New work led by Carnegie’s Petra Redekop, Emanuel Sanz-Luque, and Arthur Grossman probes the molecular and cellular mechanisms by which plants protect themselves from self-harm. Their findings, published by Science Advances, improve our understanding of one of the most-important biochemical processes on Earth.  

The Andromeda Galaxy. Credit: NASA/MSFC/Meteoroid Environment Office/Bill Cook

A detailed analysis of the composition and motion of more than 500 stars revealed conclusive evidence of ancient a collision between Andromeda and a neighboring galaxy. The findings, which improve our understanding of the events that shape galaxy evolution, were presented by Carnegie’s Ivanna Escala Monday at the meeting of the American Astronomical Society.

Irrigation being deployed in a field. Image purchased from Shutterstock.

As climate change shifts precipitation patterns, irrigation can be a powerful tool for increasing the world’s food supply—feeding more than a billion additional people without converting natural spaces into farmland, according to a new study by Carnegie’s Lorenzo Rosa published in Environmental Research Letters.

Paulinella micrograph courtesy of Eva Nowack.

About 1.2 billion years ago a blue-green bacterium was engulfed by a more complex cell, transforming our planet and allowing a tremendous diversity of plant life to emerge and continue to evolve. This is the origin story for the generation of the cellular organelle responsible for photosynthetic activity, called the chloroplast. Although it is widely agreed upon to have occurred, there is still a great deal that scientists don’t understand about the process by which the cyanobacterium's genes were transferred, turning a symbiont into an organelle. Carnegie plant biologists Victoria Calatrava, Arthur Grossman, and Devaki Bhaya investigated. 

Stylized image of a young Arabidopsis leaf by Flavia Bossi

Organisms grow to fit the space and resources available in their environments, leading to a vast diversity of body sizes and shapes within a population of the same species. What are the genetic and physiological mechanisms that determine how big an organism can grow? In insects and mammals, the cellular and molecular factors underpinning body size are well established. But in plants, this process has puzzled scientists for generations. How a plant controls the size to which it grows is a fundamental part of its developmental processes and impacts its likelihood of success in a particular environment.

A team of astronomers led by University of Michigan’s Ian Roederer and including Carnegie’s Erika Holmbeck have identified the widest range of elements yet observed in a star beyond our own Sun. Their findings are published in The Astrophysical Journal Supplement Series. The researchers identified 65 elements in the star, which is called HD 222925. Of these, 42 are from the bottom of the periodic table. Their identification will help astronomers understand one of the main methods by which the universe’s heavy elements were created—rapid neutron capture process.

Marilyn Fogel

Marilyn Louise Fogel, an isotope geochemist whose work touched on a broad scope of subjects ranging from astrobiology to paleoecology and climate change to human health, died Wednesday after a prolonged battle with ALS. She was 69.

The photosynthetic alga Chlamydomonas. Purchased from Shutterstock.

A team led by current and former Carnegie plant biologists has undertaken the largest ever functional genomic study of a photosynthetic organism. Their work, published in Nature Genetics, could inform strategies for improving agricultural yields and mitigating climate change.

3D projection of an Arabidopsis root tip. Credit: Dave Ehrhardt

The Plant Cell Atlas partnered with Futurum Careers to create an educational brochure for high school-aged students, which highlights its efforts and the importance of plant science to our society.

Algae growing in a body of water, purchased from Shutterstock.

Algae have a superpower that help them grow quickly and efficiently. New work led by Carnegie’s Adrien Burlacot lays the groundwork for transferring this ability to agricultural crops, which could help feed more people and fight climate change. Their findings are published in Nature.

New work from an international team led by Carnegie’s Alexander Goncharov synthesized a new material composed of six nitrogen atoms in a ring, bringing scientists one step closer to creating a long-theorized, pure-nitrogen solid that could revolutionize energy storage and propulsion.

An overhead view of Carnegie's Broad Branch Road campus.

Independent scientific research institutions are at an inflection point, argue Carnegie President Eric D. Isaacs and Salk Institute President Fred H. Gage in a joint essay in Issues in Science and Technology, a quarterly magazine published by Arizona State University and the National Academies of Sciences, Engineering, and Medicine.

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