Monday, April 30, 2012
Sunday, April 29, 2012
new protozoan species (unnamed, simply referred to as the protozoan) discovered in a lake in Norway show the organism does not fit into any known branch of the tree of life and may provide insight into ancient life from 1 billion years ago.
Saturday, April 28, 2012
ancient endogenous retrovirus DNA that invaded the genome of a common ancestor some 100 million years ago and has propagated by incorporating its genes into our own.
Friday, April 27, 2012
around the Sun and solar system, contradicting widely held theories about the prevalence of dark matter.
Thursday, April 26, 2012
females participating as gladiators in fights to the death in Roman amphitheaters, a rare occurrence but a practice acknowledged by first-century historians.
Wednesday, April 25, 2012
four new crab species recently discovered on the island of Palawan in the Philippines, with its brilliant coloration possibly evolving by chance and not associated with a specific function or adaptation.
Tuesday, April 24, 2012
encoding genetic information and then copying that information onto a new XNA molecule, a life process that was previously thought unique to DNA.
Monday, April 23, 2012
flexible and printable electronics, allowing the technology to be mass-produced and avoiding the chemical oxidation used in conventional thin-film electronics.
Sunday, April 22, 2012
ferroelectricity in the simplest known amino acid, glycine, a rare property for biological materials that may lead to a new field of bioelectronic devices and biological interfaces with conventional electronics.
Saturday, April 21, 2012
3000 Buddha statues in Handan, China, made of white marble and limestone, estimated to be about 1500 years old and most likely buried to preserve them from an emperor's attempted purge of Buddhism.
Friday, April 20, 2012
detect any neutrinos knocked down the leading theory on their connection to gamma ray bursts (GRB), removing a leading explanation for the origin of ultra high energy cosmic rays.
Thursday, April 19, 2012
shift in geologic conditions resulting in continental weathering of rock exposed by retreating seas, leading to biomineralization and the sudden great diversity of life known as the Cambrian Explosion and the emergence of hard shells and skeletons.
Wednesday, April 18, 2012
splitting into two particles (named "spinion" and "orbiton") within the copper-oxide compound Sr2CuO3, each carrying the spin and orbital quantum properties but restricted only within the material in which they were produced.
Tuesday, April 17, 2012
Majorana fermion, a strange particle that is its own antiparticle and whose existence was first predicted by Italian physicist Ettore Majorana in 1937.
Monday, April 16, 2012
human farming in continental Europe has been discovered in the town of Vashtëmi in a former wetlands region in southeastern Albania, dating to around 6500 B.C.
Sunday, April 15, 2012
auroras present on Uranus lasting only a few minutes, the first time such phenomena have been captured with an Earth-based telescope.
Saturday, April 14, 2012
Friday, April 13, 2012
white nose syndrome" responsible for the deaths of millions of North American bats since it was identified in 2006 has been traced to an invasive-species fungus with European origins, possibly introduced to North American bats by human tourists.
Thursday, April 12, 2012
human butchering after death, including removal of internal organs, the skull, pelvis, ribs and other bones and then the burial of the remaining carcass, presumably an early effort at preservation.
Wednesday, April 11, 2012
Tuesday, April 10, 2012
using fire to cook food at least occasionally some 1 million years ago, the earliest evidence yet found for this practice.
Monday, April 9, 2012
Einstein's cosmological constant, the leading model to explain the existence of "dark energy" and the accelerating expansion of the universe.
Sunday, April 8, 2012
sole originator of the Moon some 4.5 billion years ago, conflicting with the popular theory that the Moon was the result of a collision with a third body.
Saturday, April 7, 2012
animal-shaped mounds have been identified along the coastal plains of Peru, ranging from only a few meters to over 400 meters long and dating back some 4000 years, each with unique astronomical orientations in their construction.
Friday, April 6, 2012
Thursday, April 5, 2012
grasping feet and suggesting a life primarily lived in trees whereas the foot for Au. afarensis had already adapted for upright walking.
Wednesday, April 4, 2012
periodic bedrock ridges on the surface of Mars, a structure similar to sand dunes but formed by the wind erosion of bedrock material.
Tuesday, April 3, 2012
Earth's prehistoric atmosphere, a value no greater than 1.3 kilograms per cubic meter and very close to today's value of 1.2 kg/m3.
Monday, April 2, 2012
ovaries attached to the outside of its body, a design that possibly facilitates fertilization from the male.
Sunday, April 1, 2012
permanently in shadow, creating so-called "cold traps" that strongly reflect radar signals, a characteristic of water ice even on a world with surface temperatures exceeding 400 C.