A partial, duplicate copy of a gene appears to be responsible for the critical features of the human brain that distinguish us from our closest primate kin. The momentous gene duplication event occurred about two or three million years ago, at a crit
In the Nahanni National Park of Northwest Canada lies the Nahanni River. The area is only accessible by boat or plane and is home to many natural wonders, such as sinkholes, geysers and a waterfallalmost double the size of Niagara Falls. Lord Tweeds
By looking at changes in the DNA (deoxyribonucleic acid, the code that makes up genes) of 122 species of cypress, the researchers were able to reconstruct a timeline for their evolution. They also included fossil evidence in the analysis. The most
Why do some people have nightmares while others really spend their nights in bliss? Like sleep, dreams are mysterious phenomena. But as scientists are able to probe deeper into our minds, they are finding some of those answers. Here's some of wha
According to Biocentrism, space and time are not the hard objects we think. Wave your hand through the air – if you take everything away, what’s left? Nothing. The same thing applies for time. You can’t see anything through the bone that surrounds yo
Knight, who said he became a student of paranormal sciences as a teenager after watching a flying saucer rise out of the water off a Hawaiian beach, turned to Angela Thompson Smith in 2006 for help in finding Williams. He knew Smith as a teacher o
Experts say the flaming meteor, dating to the early formation of the solar system 4 to 5 billion years ago, was probably about the size of a minivan when it entered the Earth's atmosphere with a loud boom early Sunday. It was seen from Sacramento,
Hundreds of Alaska Airlines flight attendants say their new uniforms are making them ill.
"She started doing things like ringing the doorbell, changing TV channels, turning lights on and off," Gary Galka said Monday. "Then one time she came into my room and I felt her sit on the edge of the bed."
The discovery of the new particle confirms the theory of how quarks bind and therefore helps to understand the strong interaction, one of the four basic forces of physics which determines the structure of matter.
"Auditory hallucinations can vary from hearing an isolated sentence now and then, to hearing 'conversations' between two or more people lasting for several minutes. "It may present itself like screaming or shouting, and other times it could so
The scientists have shown that chromosomes fold in a series of contiguous "yarns" that harbor groups of genes and regulatory elements, bringing them in contact with each other and allowing them to work in a coordinated manner during development.
Larger and more integrated cities, a new wave of robotic automation, robotic driving, terabit broadband and new energy could boost GDP by over three times what they would otherwise be over a twenty year period. Global GDP growth could get into the 12
This marriage is fated because the light is in the form of cavity photons, packets of light trapped to bounce back and forth between mirrors which sandwich the electrons oscillating through their wall. Research scientist Peter Cristofolini added
Officials placed the alert at Popocatepetl -- which means "Smoking Mountain" in the native Nahuatl language -- at Yellow Level 3. This means there is a probability of explosive activity of an intermediate to high scale, an eruption of lava and a sp
"A common assumption about evolution is that it is directed toward increasing complexity," said Erik Zinser, associate professor of microbiology. "But we know from analysis of microbial genomes that some lineages trend toward decreasing complexit
Other kinds of close encounter may be less rewarding and leave much of human society feeling indifferent towards alien life. The extraterrestrials may be too different from us to communicate with usefully. They might invite humanity to join the "Gal
"There certainly is, according to my results, strong evidence that this is the most populous planetary system detected—possibly even richer than the solar system," said study leader Mikko Tuomi, an astronomer at the University of Hertfordshire in t
Steller sea lions have thrived since the federal government afforded them protection in 1970 - with new abundance estimates pegging their population at 48,000 animals in winter on the B.C. coast. The breeding population had dipped to an estimated
Specifically, the researchers looked at how cells begin to duplicate their DNA, so they can then begin to replicate themselves. DNA is the essential stuff of beginnings. Its double strands-which consist of chemical 'letters' or basepairs-tell cells
A major effect of this work will be to decrease all previous uranium-lead (U-Pb) age determinations, by up to 700,000 years for samples that are about 4.5 billion years old - the age of the Earth.
Antarctic Bottom Water is formed in a few distinct locations around Antarctica, where seawater is cooled by the overlying air and made saltier by ice formation. The dense water then sinks to the sea floor and spreads northward, filling most of the de
The new value patches some holes in current understanding, according to Paul. "The new time scale now matches up with a recent, precise dating taken from a lunar rock, and is in better agreement with dates obtained with other chronometers," Paul sa
, can be dated to within plus or minus 30 years. Because Tahiti is an ocean island, far away from major ice sheets, sea-level evidence from its coral reefs gives us close to the '
The distinctive markings are thought to have formed when underground lava flows carved out tunnels which then collapsed Topographic map showing the elevations of the markings on the surface
It is illuminating to compare the Myhrvold–Caldeira partial emissions scenarios with the two full blown scenarios of the International Energy Agency (IEA)—the Current Policy Scenario and the 450 Scenario, presented in World Energy Outlook 2010 .
Atomic metallic hydrogen, if metastable at ambient pressure and temperature could be used as the most powerful chemical rocket fuel, as the atoms recombine to form molecular hydrogen. This light-weight high-energy density material would revolutionize
The most widely accepted explanation for the tiny proportion of organic carbon preserved, says Gélinas, is that it's protected by sorption on clay mineral surfaces in the water column and in sediments.
Vinge has a proven track record of looking ahead. His 1981 novella True Names was one of the first science fiction stories to deal with virtual reality, and he also coined the phrase, “The Technological Singularity” to describe a future point at whic
In eukaryotes, proteins known as "histones" package and order DNA into a compact protein-DNA structure called chromatin. Archaea, in contrast, have no such universal chromatin proteins, instead using two or more DNA-binding proteins to package DN