Merging magma can set off supervolcanoes in less than 10,000 years
Science News, July 2014Massive supervolcanic eruptions can be triggered much more quickly than previously thought, scientists report July 21 in Geology.
Wonders of the northern lights
Science News, July 2014Tens of kilometers above the icy waterfalls surrounding Iceland’s Kirkjufell Mountain, Earth’s magnetic field drags electrons from the sun to their visually stunning demise. The zooming particles collide with nitrogen and oxygen in the upper atmosphere, an interaction that produces a brilliant blue-green light show called an aurora.
Sandstone structures form without cement
Science News, July 2014Gravity, not glue, allows towering sandstone pillars and arches to withstand howling wind and pouring rain, researchers propose July 20 in Nature Geoscience.
Cell phone towers monitor African rains
Science News, July 2014Distorted cell phone signals could help track the rains down in Africa.
Diamonds under pressure impersonate exoplanet cores
Science News, July 2014Researchers have squeezed diamonds to a record-setting pressure — 14 times as high as that inside Earth’s core. The compressed diamond’s properties could reveal the extreme conditions deep inside supersized distant planets, the team reports in the July 17 Nature.
Saharan dust explains Bahamas’ paradoxical existence
Science News, July 2014The Bahamas owes its origins to windswept dust from Africa’s Sahara Desert, scientists propose June 30 in Geology.
Gravity variations foretell flood risk months in advance
Science News, July 2014Small gravitational tugs from waterlogged river basins could give scientists a big advantage in predicting devastating floods, researchers report July 6 in Nature Geoscience.
Flightless dino-bird wore full-body feathers
Science News, July 2014A fully feathered fossil of the dinosaur-like bird Archaeopteryx is ruffling scientists’ understanding of what drove early feather evolution, scientists report July 2 in Nature.
Adapted for Science News for Students.
Win at cards using quantum physics
Science, June 2014A little quantum mechanics could provide an edge in the classic card game bridge, a team of physicists claims. Bridge is played by four people in teams of two, and the goal of the game is in part to deduce which cards your partner and your opponents hold. Players do this during bridge’s pivotal bidding phase, by making terse bids such as “three hearts.”
Court records reveal moment society became more civilized
Science, June 2014Trial transcripts from London’s oldest court, the Old Bailey, chronicle 239 years of criminal history ranging from scandalous murders to sheep theft. A research team wondered if these documents reflect Western society’s “civilizing process,” a centuries-long period when violence levels plummeted and the modern justice system took shape.