Saturday, March 31, 2012
Friday, March 30, 2012
ionization of Earth's atmosphere.
Thursday, March 29, 2012
surface of Mercury have signs of distortion by a geological process after impact, revealing along with other data that the planet has been unusually dynamic for a very long time.
Wednesday, March 28, 2012
"lost" section of the Great Wall of China in the Ömnögovi Province of southern Mongolia, a 100-kilometer section dating to around A.D. 1100 and belonging collectively to what is known regionally as the Wall of Genghis Khan.
Tuesday, March 27, 2012
hydrocarbon-free state and a hydrocarbon-rich state with this cycle ending after oxygenation.
Monday, March 26, 2012
full piezoelectric effects comparable to bulkier three-dimensional materials, opening up an unparalleled level of control for electrical, optical and mechanical nanoscale structures.
Sunday, March 25, 2012
Red Deer Cave people may have arisen in parallel to Neanderthals in Africa and Europe some 200,000 years ago, although the relationship between the two species is still unclear.
Saturday, March 24, 2012
signalling centers identical to those in vertebrates that are used to develop complex brain structures, suggesting the last common ancestor of vertebrates and invertebrates may have had a complex brain that it subsequently lost.
Friday, March 23, 2012
magnetic stripes mapped out in the Tendaho Graben of the Afar Depression of Ethiopia reveal a point where three of Earth's tectonic plates meet and are stretching apart to eventually form a new ocean, the first such stripes documented on land instead of occurring on the sea floor.
Thursday, March 22, 2012
evidence of iridescence in their feathers, with fossil melanosomes comparable to modern birds with an iridescent sheen.
Wednesday, March 21, 2012
taste sweet compounds, with the gene that controls the sweet taste receptor lost through the species' evolution and demonstrating the importance of an animal's dietary needs in shaping their sensory systems.
Tuesday, March 20, 2012
theta one three," by which an electron neutrino can oscillate or transform into one of the other two neutrino flavors, muon or tau.
Monday, March 19, 2012
organism with hard parts existing before the Cambrian Period.
Sunday, March 18, 2012
Maxwell's demon" after James Clerk Maxwell has been disproven by experiment due to the fact that the eventual erasure ("forgetting") of stored information releases a small amount of heat and thus increases entropy, affirming the second law of thermodynamics.
Saturday, March 17, 2012
extremely rare alignment of the Sun, Earth and full moon on January 4, 1912, may have caused unusually strong tides and allowed much larger than average icebergs into the commercial shipping lanes in the following months.
Friday, March 16, 2012
several different species of dark matter.
Thursday, March 15, 2012
hot flow anomalies (HFA) occurring around Venus, a type of space weather discontinuity common on Earth that deflects the solar wind as it moves past a planet's bow shock, a surprising phenomena given Venus' lack of a magnetic field.
Wednesday, March 14, 2012
produce new eggs when grown in the lab, challenging the long-held belief that women are born with a finite number of eggs and instead may produce at least some new eggs through their reproductive years.
Tuesday, March 13, 2012
oldest known chordate, a "missing link" common ancestor of all creatures with a backbone from fish to humans that lived about 505 million years ago.
Monday, March 12, 2012
Solutrean people from northern Spain and France based on similar tools found in the eastern United States dated thousands of years earlier than the Clovis civilization, allegedly crossing the Arctic ice instead of a Siberian land bridge.
Sunday, March 11, 2012
Molecular oxygen ions have been detected in the upper atmosphere of Saturn's moon Dione by the orbiting Cassini spacecraft, providing evidence that large quantities of oxygen can be found on icy bodies that are exposed to sunlight.
Saturday, March 10, 2012
orbital angular momentum of radio waves with a "twist," allowing many data streams to occupy each frequency range (bandwidth) in an electromagnetic spectrum that has become increasingly crowded with the growth of technology.
Friday, March 9, 2012
electronic charge distribution surrounding a single molecule, which matched neatly with the theoretical values.
Thursday, March 8, 2012
Shepherd's beaked whales on film, the first time live animals of this deep-water, reclusive species known only through stranded dead specimens have been documented.
Wednesday, March 7, 2012
shrank in size with the warming of Earth's climate over the 175,000-year Paleocene-Eocene thermal maximum, the first data to confirm Bergmann's rule applies to changes over time as well as location.
Tuesday, March 6, 2012
herd of elephants walking together, one of the longest trackways in the world.
Monday, March 5, 2012
densest planets known and challenging current theories of planet formation.
Sunday, March 4, 2012
Saturday, March 3, 2012
held steady for at least 25 million years and is not bound for extinction, as predicted by some evolutionary theories.
Friday, March 2, 2012
marsquakes," its equivalent of earthquakes, suggesting possible volcanism still at work below the surface.
Thursday, March 1, 2012
buckministerfullerene ("buckyballs") in solid form in space for the first time surrounding a pair of stars about 6500 light years away.