Uncategorized
- Planetary Science
Moon’s origins revealed in rocks’ chemistry
A new chemical measurement of rocks from Earth and from the moon supports the giant impact hypothesis, which explains how the moon formed billions of years ago.
By Meghan Rosen - Genetics
Bromine found to be essential to animal life
Fruit flies deprived of the element bromine can’t make normal connective tissue that supports cells and either don’t hatch or die as larvae.
- Life
Hatcheries’ metal can disrupt steelhead magnetic sense
Growing up in magnetic fields distorted by pipes and electronics confounds young fish’s inherited map sense.
By Susan Milius - Science & Society
To do: Summer science exhibits across the country
Here's a roundup of museum exhibits to explore in the United States.
- Health & Medicine
Early malnutrition may impair infants’ mix of gut microbes
Babies’ gut microbiomes fail to fully recover even after fending off bouts with malnutrition.
By Nathan Seppa - Chemistry
Decay of Leonardo da Vinci drawing reflected in light
Light that bounces off a Leonardo da Vinci drawing, widely considered a self-portrait, has revealed extensive chemical damage that causes yellowing.
By Beth Mole - Astronomy
Rocky, overweight planet shakes up theories
Kepler-10c is a rocky exoplanet 17 times as massive as Earth, and astronomers are puzzled as to how it formed.
- Life
A new twist on a twist
Nature abounds with perfect helices. They show up in animal horns and seashells, in DNA and the young tendrils of plants. But helix formation can get complicated: In some cases, the direction of rotation can reverse as a helix grows.
- Animals
Why tree-hugger koalas are cool
Drooping against bark during a heat wave could save koalas from overheating.
By Susan Milius - Health & Medicine
Health risks of e-cigarettes emerge
Research uncovers a growing list of chemicals that end up in an e-cigarette user’s lungs, and one study finds that an e-cigarette’s vapors can increase the virulence of antibiotic-resistant bacteria.
By Janet Raloff - Genetics
Blind mole-rats are loaded with anticancer genes
Genes of the long-lived blind mole-rat help explain how the animal evades cancer and why it lost vision.
- Chemistry
Bacteria take plants to biofuel in one step
Engineered bacterium singlehandedly dismantles tough switchgrass molecules, making sugars that it ferments to make ethanol.
By Beth Mole