All Stories by Ashley Yeager
- Animals
Snake and lizard ancestor may have birthed live young
Over millions of years, reptiles may have switched back and forth between laying eggs and giving birth to live babies.
- Astronomy
Milky Way may indeed have four spiral arms
In 2008, the galaxy lost two of its spiral arms. But it may be getting them back.
- Astronomy
China’s Chang’e-3 craft lands on the moon
The unmanned Chang’e-3 lunar lander and Yutu rover have made it to the moon's surface.
- Microbes
Bacteria turn threatening in tests with immune cells
In less than 30 days, nonthreatening E. coli can transform into dangerous microbes in mice.
- Neuroscience
Concussion-free head blows may still affect brain
Some college athletes who played contact sports had more changes in their brain’s white matter than varsity competitors in less violent games.
- Health & Medicine
Staph bacteria linger deep in our noses
The nasal cavity has hidden crevices where the disease-causing bacteria like to hang out.
-
- Astronomy
Galaxy’s cloud catalog reveals hydrogen fog
Fifty percent of the molecular hydrogen exists in a gas layer that spreads throughout the Whirlpool galaxy and envelopes the giant clouds where stars form.
- Health & Medicine
Watching media coverage of disasters linked to stress
Watching hours of media coverage of traumatic events may worsen symptoms of distress.
- Astronomy
Saturn’s six-sided cloud pattern gets a close look
New images show particles in the planet’s hexagonally shaped jet stream.
- Life
H7N9 flu still better adapted to infect birds over humans
The proteins from the avian flu appear better suited for attaching to bird, not human, molecules.
- Life
Targeting single set of nerve cells may block mosquitoes
The insects use the same neurons to detect carbon dioxide from our breath and odors from our skin so blocking those cells could lead to more simplified repellent systems.
