Thursday, March 25, 2010
Published: March 24 2010 18:45 | Last updated: March 24 2010 18:45
A fourth type of hominid, besides Neanderthals, modern humans and the tiny “hobbit”, was living as recently as 40,000 years ago, according to research published in the journal Nature.
The discovery by Svante Pääbo and colleagues at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, is based on DNA sequences from a finger bone fragment discovered in a Siberian cave.
It further enriches the scientific picture of human life in the recent geological past. “Forty thousand years ago the planet was more crowded than we thought,” said Terry Brown, an expert in ancient DNA at Manchester University. Until recently scientists believed there were just two members of the genus Homo alive at the time: Neanderthals whose ancestors left Africa 400,000 years ago, and modern humans, who left about 50,000 years ago. The picture changed in 2003 when archaeologists found remains of a third species, the tiny “hobbit”, which had survived on the Indonesian island of Flores until 14,000 years ago.
Friday, March 19, 2010
Hunched over a picnic table in a limestone cave, the Indonesian researcher gingerly fingers the bones of a giant rat for clues to the origins of a tiny human.
This world turned upside down may once have existed here, on the remote island of Flores, where an international team is trying to shed light on the fossilized 18,000-year-old skeleton of a dwarf cavewoman whose discovery in 2003 was an international sensation.
Her scientific name is Homo floresiensis, her nickname is "the hobbit," and the hunt is on to prove that she and the dozen other hobbits since discovered are not a quirk of nature but members of a distinct hominid species.
Saturday, March 13, 2010
David Sereda talks about his plans to build a flying saucer.
This is a brief conversation with Jordan Maxwell about his new work and projections for 2010.
Ted Loman and Jim Nichols discusses why Disclosure may never originate from the government, as well as other topics.
Larry Warren and Gary Heseltine - Rendlesham Forest UFO Incident. Larry was a military guard at the base when the incident occurred. Gary Heseltine is a U.K. police detective who has been investigating this case and is now working on the screenplay for an upcoming movie.
Alejandro Rojas from Open Minds Production.
Ross Hemsworth, the founder and presenter of the popular British Show "Now That's Weird". Ross has an audience of about 500,000 listeners and growing every day.
Stan Romanek - The UFO/ET Abductee.
Thursday, March 11, 2010
Is this is a new Area 51? Is there a 30 mile wide Extraterrestrial and UFO base in Northern Carolina? Is this really true? In this on-going investigation, Mary Joyce supported by her colleague Evelyn Gordon make startling claims of huge UFOS and a man-made Alien spacecraft base in the heart of some of the most picturesque scenery in the United States - MILAB Country?For more, visit Sky Ships Over Cashiers.
Saturday, March 6, 2010
Wednesday, March 3, 2010
Tuesday, March 2, 2010
The earthquake that killed more than 700 people in Chile on Feb. 27 probably shifted the Earth’s axis and shortened the day, a National Aeronautics and Space Administration scientist said. Earthquakes can involve shifting hundreds of kilometers of rock by several meters, changing the distribution of mass on the planet. This affects the Earth’s rotation, said Richard Gross, a geophysicist at NASA’s Jet Propulsion Laboratory in Pasadena, California, who uses a computer model to calculate the effects.Read the full article HERE.
“The length of the day should have gotten shorter by 1.26 microseconds (millionths of a second),” Gross, said today in an e-mailed reply to questions. “The axis about which the Earth’s mass is balanced should have moved by 2.7 milliarcseconds (about 8 centimeters or 3 inches).” The changes can be modeled, though they’re difficult to physically detect given their small size, Gross said. Some changes may be more obvious, and islands may have shifted, according to Andreas Rietbrock, a professor of Earth Sciences at the U.K.’s Liverpool University who has studied the area impacted, though not since the latest temblor.
Santa Maria Island off the coast near Concepcion, Chile’s second-largest city, may have been raised 2 meters (6 feet) as a result of the latest quake, Rietbrock said today in a telephone interview. He said the rocks there show evidence pointing to past earthquakes shifting the island upward in the past. “It’s what we call the ice-skater effect,” David Kerridge, head of Earth hazards and systems at the British Geological Survey in Edinburgh, said today in a telephone interview. “As the ice skater puts when she’s going around in a circle, and she pulls her arms in, she gets faster and faster. It’s the same idea with the Earth going around if you change the distribution of mass, the rotation rate changes.”
Rietbrock said he hasn’t been able to get in touch with seismologists in Concepcion to discuss the quake, which registered 8.8 on the Richter scale. “What definitely the earthquake has done is made the Earth ring like a bell,” Rietbrock said. The magnitude 9.1 Sumatran in 2004 that generated an Indian Ocean tsunami shortened the day by 6.8 microseconds and shifted the axis by about 2.3 milliarcseconds, Gross said. The changes happen on the day and then carry on “forever,” Benjamin Fong Chao, dean of Earth Sciences of the National Central University in Taiwan, said in an e-mail. “This small contribution is buried in larger changes due to other causes, such as atmospheric mass moving around on Earth,” Chao said.
The first step in this process was NASA's announcement that a significant amount of water was found on the Moon following the LCROSS bombing mission last year. According to NASA, the LCROSS rocket had blasted a crater in the south pole of the lunar surface creating a hole significant enough to generate plumes of lunar deposits that included at least 24 gallons of water.
Today, a BBC news article indicates NASA's Mini-Sar radar experiment in collaboration with India's Chandrayaan-1 Lunar Spacecraft has discovered thick deposits of ice on the Moon:
A radar experiment aboard India's Chandrayaan-1 lunar spacecraft has identified thick deposits of water-ice near the Moon's north pole. The US space agency's (Nasa) Mini-Sar experiment found more than 40 small craters containing water-ice. But other compounds - such as hydrocarbons - are mixed up in lunar ice, according to new results from another Moon mission called LCROSS. The findings were presented at a major planetary science conference in Texas.
The craters with ice range from 2km to 15km (one to nine miles) in diameter; how much there is depends on its thickness in each crater. But Nasa says the ice must be at least a couple of metres thick to give the signature seen by Chandrayaan-1. Dr Paul Spudis, from the Lunar and Planetary Institute in Houston, estimated there was at least 600 million metric tonnes of water-ice held within these impact craters. The equivalent amount, expressed as rocket fuel, would be enough to launch one space shuttle per day for 2,200 years, he told journalists at the 41st Lunar and Planetary Science Conference.
What all these craters have in common are large areas of their interiors that never see sunlight. Temperatures in some of these permanently darkened craters can drop as low as 25 Kelvin (-248C; -415F) - colder than the surface of Pluto - allowing water-ice to remain stable. "It is mostly pure water-ice," said Dr Spudis. "It could be under a few tens of centimetres of dry regolith (lunar soil)." - BBC.
Read the full story HERE.