Ancient moon’s mega magnetic field explained
Science News, December 2014The powerful magnetic field that surrounded the fledgling moon billions of years ago probably originated from the roiling lunar interior, not asteroid impacts.
Earth’s most abundant mineral finally has a name
Science News, November 2014A space rock has helped scientists characterize, and finally name, the planet’s most common mineral.
Adapted for Science News for Students.
Robotic subs reveal thicker Antarctic sea ice
Science News, November 2014The sea ice surrounding Antarctica may be thicker than previously thought. Earlier estimates using shipboard observations and drill cores had suggested that the Southern Ocean ice pack was thinner than 1 meter on average. New measurements, reported November 24 in Nature Geoscience, show ice floes with thicknesses ranging from 1.4 to 5.5 meters, with some areas as thick as 16 meters.
Lightning strikes will surge with climate change
Science News, November 2014Global warming could have an electrifying effect. Climate calculations suggest that U.S. lightning frequency will increase about 12 percent for every 1 degree Celsius in warming, researchers report in the Nov. 14 Science.
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Some trilobites sported dual digestive tracts
Science News, October 2014Some trilobites scurrying across the seafloor around 500 million years ago probably sported two-lane digestive tracks, new research shows.
Ancient jellyfish suffered strange, sandy death
Science News, October 2014Tentacle-draped jellyfish might seem odd, and their deaths can be even weirder. Paleontologist Graham Young of the Manitoba Museum in Winnipeg reconstructed the bizarre final moments of an ancient jellyfish entombed for roughly 310 million years inside a black shale slab in Indiana.
Adapted for Science News for Students.
No water contamination found in Ohio’s fracking epicenter
Science News, October 2014Fracking in Carroll County, the heart of Ohio’s natural gas boom, hasn’t contaminated groundwater, new research shows. The study is the first in the country to evaluate drinking water quality before and after the local onset of hydraulic fracturing, better known as fracking.
Stegosaurus landed a low blow in dino brawl
Science News, October 2014In a story worthy of CSI: Jurassic Period, researchers have solved the mystery of what killed a predatory allosaurus dinosaur 147 million years ago.
Falling raindrops break terminal velocity
Science News, October 2014Raindrops have been caught breaking the speed limit. Using drizzle detectors, researchers discovered tiny raindrops falling more than 1.3 times as fast as terminal velocity, the speed at which air resistance cancels out gravitational pull.
Satellites expose mysteries of the deep ocean
Science News, October 2014A new comprehensive map of Earth’s seafloor reveals never-before-seen features hidden deep below the waves, including thousands of uncharted underwater mountains. The map, presented in the Oct. 3 Science, is the most accurate global seafloor map ever made and could provide new clues to how Earth’s surface got its shape.