Earth
We summarize the week's scientific breakthroughs every Thursday.
- Climate
Climate probably stopped Mongols cold in Hungary
Mongol cavalry was no match for cold, wet climate in medieval Hungary, researchers think.
- Climate
Climate-cooling aerosols can form from tree vapors
Climate-cooling, cloud-seeding aerosols can form in the atmosphere without the sulfuric acid spewed from fossil fuel burning, new research suggests.
- Animals
Antibiotics in cattle leave their mark in dung
Treating cattle with antibiotics may have side effects for dung beetles, microbes and greenhouse gases.
- Physics
The center of Earth is younger than the outer surface
Einstein’s general theory of relativity predicts the center of the Earth is two years younger than the crust.
- Astronomy
Young sun’s super solar flares helped set early Earth up for life
Super solar flares may have provided early Earth with planet-warming and life-building molecules.
- Climate
Zapping clouds with lasers could tweak planet’s temperature
Breaking up the ice particles inside cirrus clouds could make them reflect more light, turning them into a tool to combat global warming.
- Oceans
Ancient tsunamis reshaped Mars’ landscape
Ancient tsunamis generated by meteorite impacts may have reshaped ocean coastlines on Mars.
- Oceans
The Arctic Ocean is about to get spicier
Variations in the saltiness and temperature of seawater of the same density, called spiciness, could increase as the Arctic Ocean warms.
- Health & Medicine
Zika, psychobiotics and more in reader feedback
Readers respond to the April 2, 2016, issue of Science News with thoughts on Zika virus, planetary science, microbes in mental health and more.
- Agriculture
New analysis: Genetically engineered foods not a health risk
No real evidence for health or environmental dangers of GE crops.
- Oceans
Here’s where 17,000 ocean research buoys ended up
A combined look at 35 years’ worth of ocean buoy movements reveals the currents that feed into ocean garbage patches.
- Earth
Remnants from Earth’s birth linger 4.5 billion years later
Shaken, not stirred: Tungsten isotopes reveal that mantle convection has left some remnants of ancient Earth untouched for 4.5 billion years.
