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Ashley Yeager

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Excitons' motions captured in images

When plants make food, they absorb energy from light. Excitons move that energy to places in plants where it can be stored in its chemical form. Observing excitons in motion may help scientists better understand the process of photosynthesis.

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Quasiparticles called excitons transfer energy through materials such as solar cells, LEDs, semiconductor circuits and even plant cells. Now, that motion has been observed and captured in images, researchers report April 16 in Nature Communications. The observations could lead to advances in electronics and improve scientists’ understanding of photosynthesis.

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Planetary Science,, Astronomy

Saturn may be getting a new moon

By Ashley Yeager 2:36pm, April 15, 2014
An icy object within Saturn's rings may be a new moon in the making.
Genetics

Modern hunter-gatherers' guts host distinct microbes

By Ashley Yeager 12:27pm, April 15, 2014
A healthy collection of gut bacteria depends on the environment in which people live and their lifestyle, research shows.
Clinical Trials,, Biomedicine,, Health

Hepatitis C treatment appears extremely effective

By Ashley Yeager 12:24pm, April 14, 2014
A mix of four medications has provided the most effective way to date to counter the hepatitis C virus in humans.
Cells,, Genetics

How cells keep from popping

By Ashley Yeager 2:43pm, April 11, 2014
The protein SWELL1 stops cells from swelling so much that they burst, a new study shows.
Earth

Huge space rock rattled Earth 3 billion years ago

By Ashley Yeager 12:28pm, April 10, 2014
An asteroid almost as wide as Rhode Island may have plowed into Earth 3.26 billion years ago, leaving its mark in South Africa’s Barberton greenstone belt.
Microbiology,, Microbes

Amoebas’ munching may cause diarrheal disease

By Ashley Yeager 5:20pm, April 9, 2014
Amoebas biting and swallowing pieces of human cells may be what causes amebic dysentery, a potentially fatal diarrheal disease in the developing world.
Quantum Physics

Small step taken for quantum communication

By Ashley Yeager 1:07pm, April 9, 2014
A single atom can change the state of a photon, which may help build quantum networks.
Technology

Atlantic razor clam inspires robot to dig deeper

By Ashley Yeager 12:07pm, April 9, 2014
A robot digs using the same method as the Atlantic razor clam.
Astronomy

El Gordo galaxy cluster as hefty as 3 million billion suns

By Ashley Yeager 11:52am, April 8, 2014
The galaxy cluster El Gordo, which is Spanish for “the fat one," is roughly 43 percent more massive than earlier estimates.
Health,, Genetics,, Epigenetics

Changes in kids’ genomes linked to chronic stress

By Ashley Yeager 10:59am, April 8, 2014
In a study of 40 nine-year-old boys, kids from underprivileged backgrounds had telomeres that were 19 percent shorter than those of boys from more privileged environments.
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