Supervolcano blast would blanket U.S. in ash
Science News, September 2014A new simulation illustrates the explosiveness of the volcano that lurks beneath Yellowstone National Park in Wyoming.
Shrinking ancient sea may have spawned Sahara Desert
Science News, September 2014The Sahara Desert may be millions of years older than scientists thought, researchers report in the Sept. 18 Nature. The team’s climate reconstruction suggests that the desert formed 7 million years ago as the ancient forerunner of the Mediterranean Sea shriveled.
Warming alone triggered Antarctic ice shelf collapse
Science News, September 2014Balmy surface temperatures, not an unstable underbelly, probably prompted the largest ice shelf collapse ever recorded, researchers report in the Sept. 12 Science.
Plate tectonics spotted on Europa
Science News, September 2014Plate tectonics churns the icy exterior of Jupiter’s moon Europa, researchers report September 7 in Nature Geoscience. The finding marks the first evidence of plate tectonics elsewhere in the universe.
Plasma corkscrews form on sun during stellar eruption
Science News, September 2014A twist on the sun is throwing solar scientists for a loop. For the first time, researchers have watched the sun’s magnetic field force plasma into a spring-shaped curl during a powerful solar eruption known as a coronal mass ejection, or CME.
Death Valley’s sailing stones caught on the move
Science News, September 2014For nearly a century Death Valley’s dancing rocks have amazed visitors and stumped scientists. Despite etching trails longer than football fields into the dried mud, no one had ever seen the stones move.
Blind quantum camera snaps photos of Schrödinger’s cat
Science News, August 2014Exploiting the same quantum quirk that spawns Schrödinger’s undead cat in the famous thought experiment, a research team snapped a portrait of a cardboard cat without collecting any light bouncing off the two-dimensional kitty. This blind camera, comprising lasers and crystals, could help scientists illuminate microscopic worlds difficult to picture using existing techniques, the team reports in the Aug. 28 Nature.
Lake under Antarctic ice bursts with life
Science News, August 2014In January 2013, researchers pulled the first water samples from a dark, frigid lake sealed beneath the Antarctic ice sheet. Within hours, they announced they had found live cells in the water. Now after remaining tightlipped for 19 months, the team reports in the Aug. 21 Nature that the lake doesn’t just contain microbial life, it teems with it.
To explain asteroid composition, scientists invoke nuts
Science News, August 2014Brazil nut effect BRUH-zil nuht ih-fekt n. The phenomenon in which a mixture’s larger objects, such as Brazil nuts in a can of mixed nuts, rise to the top when the mix is shaken vertically. Some scientists think that smaller nuts slip into the spaces under the larger ones during each shake.
Laser identifies explosive powders 400 meters away
Science News, August 2014A lightning-fast laser lightshow could help detect explosive powders from a distance, a study in the August 11 Proceedings of the National Academy of Sciences suggests.