The late British Prime Minister Margaret Thatcher attended a luncheon in 1982 with double agent Oleg Gordievsky, who was then head of the Soviet Union's London KGB spy network, according to papers released Monday.

Gordievsky, who fled the Soviet Union in 1985 as Moscow began to suspect his treason, was included on a guestlist for a 45-minute hotel lunch alongside British lawmakers and local officials, a document published by the Margaret Thatcher Foundation has revealed.

The meal took place during the annual conference of Thatcher's Conservative Party in the British seaside resort town of Bournemouth.

"A number of guests from Young Conservative Groups in Europe, America and New Zealand will be attending the Conference. Members of the 'Diplomatic Corps,' including: Mr O Gordievski from the Soviet Embassy," the document reads.

University Park, Pa.,-- A study of hand prints on cave walls suggests much of Paleolithic cave art was created by women, a Penn State archaeologist says.

Taking as his starting point previous research that found average finger lengths in people vary by gender, Dean Snow has been studying ancient hand prints in caves for nearly a decade, National Geographic reported.

Looking at pictures of cave art at one point, Snow noticed the fingers on the hands stenciled next to depictions of animals and other objects appeared to conform to research descriptions of female hands.

Hand stencils, found in several cave art sites, where created by the artist or artists placed their hands against a cave wall and blowing paint at them (through a straw or directly from their mouth) to create an outline.

Snow said his studies suggest approximately 75 percent of such hand art samples was likely the work of women as opposed to the common belief that cave art was the purview of men.

The assumption was based on the depictions in most cave art of women and animals being hunted, which seemed to sum up the life of hunters, the male half of a hunter-gatherer society.

If women were doing most of the cave art, Snow said, it's possible they played a larger, more important role in how hunter-gatherer societies functioned than has been thought.

The genetic analysis traced the lineage of many Ashkenazi Jews to four maternal founders in Europe.

Most Ashkenazi Jews are descendants of European women who converted to Judaism, possibly around the time of the early Roman empire, concludes a new genetic study that casts doubt on many prevailing theories about the origins of Ashkenazim.

The study, published Tuesday in the journal Nature Communications, analyzed samples of mitochondrial DNA, which is passed down only from the mother, taken from more than 3,500 people throughout the Near East, the Caucasus and Europe, including Ashkenazi Jews. The researchers found that more than 80 percent of the maternal lineages of Ashkenazi Jews could be traced to indigenous Europeans, with four maternal "founders" responsible for 40 percent. Although Jewish men may have migrated into Europe from Israel around 2,000 years ago, they brought few or no wives with them, according to the researchers, who suggest that the men married and converted European women, first along the Mediterranean and later in western and central Europe.

Women made most of the oldest-known cave art paintings, suggests a new analysis of ancient handprints. Most scholars had assumed these ancient artists were predominantly men, so the finding overturns decades of archaeological dogma.

Archaeologist Dean Snow of Pennsylvania State University analyzed hand stencils found in eight cave sites in France and Spain. By comparing the relative lengths of certain fingers, Snow determined that three-quarters of the handprints were female.

"There has been a male bias in the literature for a long time," said Snow, whose research was supported by the National Geographic Society's Committee for Research and Exploration. "People have made a lot of unwarranted assumptions about who made these things, and why."

Archaeologists have found hundreds of hand stencils on cave walls across the world. Because many of these early paintings also showcase game animals - bison, reindeer, horses, woolly mammoths - many researchers have proposed that they were made by male hunters, perhaps to chronicle their kills or as some kind of "hunting magic" to improve success of an upcoming hunt. The new study suggests otherwise.

During the Early Bronze Age there was a very high level of territorial mobility of the Únětice culture in Silesia, a large community inhabiting the south western territories of Poland approximately 4 000 years ago.

This is found in a new doctoral thesis from the University of Gothenburg which also conclusively confirms the first case of human long-distance overseas journey to Silesia from Scandinavia, probably from southern Sweden.

'Over 3800 years ago, a young male, possibly born in Skåne, made a journey of over 900 kilometers south, to Wroclaw in Poland. He died violently in Wroclaw, killed by Úněticean farmers, possibly due to romance with two local females, who were murdered together with him. This 'Bronze Age love story', with no happy end today is the first case of Swedish-Polish contacts in history ever', concludes archaeologist Dalia Pokutta, author of the thesis.

The Early Bronze Age has undergone a multitude of transformations through archaeologist's eyes over the past decades. The Únětice culture, commonly known and associated with Nebra Sky Disk, is currently considered to be part of a wider pan-European cultural phenomenon, arising gradually between III-II millennium B.C.

The new study of the Únětice Culture comes as a result of international cooperation of several leading European universities within the EU Forging Identities: The Mobility of Culture in Bronze Age Europe programme. Dalia Pokutta's work is a 'bioarchaeological portrait' of the Únětice culture in Poland, focusing particularly on the territories of Lower Silesia. The study presents the subject from a palaeodemographic perspective based on the results of isotopic analysis of human remains dating back to the Early Bronze Age (2200-1600 B.C).

'It is the biggest isotopic project undertaken in Poland so far. We analysed hundreds of samples, not only human bones, but also animals. This study deals with the humans of a long-forgotten past and figuratively speaking, it has been written by the hands of fifty dead people. This story leads us to the first Europe of metals and the beginnings of the Bronze Age world, but above all to past societies and their members. The results of the analyses went beyond our wildest dreams or expectations' says Dalia Pokutta.

Scientists have discovered the first ever evidence of a comet entering Earth's atmosphere and exploding, raining down a shock wave of fire which obliterated every life form in its path.

The discovery has not only provided the first definitive proof of a comet striking Earth, millions of years ago, but it could also help us to unlock, in the future, the secrets of the formation of our solar system.

"Comets always visit our skies - they're these dirty snowballs of ice mixed with dust - but never before in history has material from a comet ever been found on Earth," says Professor David Block of Wits University.

The comet entered Earth's atmosphere above Egypt about 28 million years ago. As it entered the atmosphere, it exploded, heating up the sand beneath it to a temperature of about 2 000 degrees Celsius, and resulting in the formation of a huge amount of yellow silica glass which lies scattered over a 6 000 square kilometer area in the Sahara.

In 1922, Howard Carter and Lord Carnarvon discovered the tomb of Pharaoh Tutankamun (KV62), in the Valley of the Kings/Egypt.

The tomb was densely packed with items in great disarray all dating from the 18th dynasty. Due to the state of the tomb, and to Carter's meticulous recording technique, the tomb took eight years to empty, the contents all being transported to the Egyptian Museum in Cairo.

The Christian faith is the result of the most successful psy-ops program in history, according to an American Bible scholar.

Joseph Atwill will present his controversial theory Oct. 19 in London that the New Testament was written by first-century Roman aristocrats as part of a sophisticated government project to help pacify Jews in occupied territories.

Atwill, author of "Caesar's Messiah," claims he's found ancient confessions by the scriptures' authors that they invented Jesus Christ and his story as basically a form of propaganda.

"Jewish sects in Palestine at the time, who were waiting for a prophesied warrior Messiah, were a constant source of violent insurrection during the first century," Atwill said. "When the Romans had exhausted conventional means of quashing rebellion, they switched to psychological warfare. They surmised that the way to stop the spread of zealous Jewish missionary activity was to create a competing belief system. That's when the 'peaceful' Messiah story was invented. Instead of inspiring warfare, this Messiah urged turn-the-other-cheek pacifism and encouraged Jews to 'give onto Caesar' and pay their taxes to Rome."

He says that Jesus was not based on an actual historical figure, but Atwill argues that the events of his life were overlaid on top of actual events from the First Jewish-Roman War, waged by Emperor Titus Flavius in Palestinian territories.

Ancient DNA recovered from a time series of skeletons in Germany spanning 4,000 years of prehistory has been used to reconstruct the first detailed genetic history of modern-day Europeans.

The study, published today in Science, reveals dramatic population changes with waves of prehistoric migration, not only from the accepted path via the Near East, but also from Western and Eastern Europe.

The research was a collaboration between the Australian Centre for Ancient DNA (ACAD), at the University of Adelaide, researchers from the University of Mainz, the State Heritage Museum in Halle (Germany), and National Geographic Society's Genographic Project.

The teams used mitochondrial DNA (maternally inherited DNA) extracted from bone and teeth samples from 364 prehistoric human skeletons ‒ ten times more than previous ancient DNA studies.

"This is the largest and most detailed genetic time series of Europe yet created, allowing us to establish a complete genetic chronology," says joint-lead author Dr Wolfgang Haak of ACAD.

"Focussing on this small but highly important geographic region meant we could generate a gapless record, and directly observe genetic changes in 'real-time' from 7,500 to 3,500 years ago, from the earliest farmers to the early Bronze Age."

"Our study shows that a simple mix of indigenous hunter-gatherers and the incoming Near Eastern farmers cannot explain the modern-day diversity alone," says joint-lead author Guido Brandt, PhD candidate at the University of Mainz. "The genetic results are much more complex than that. Instead, we found that two particular cultures at the brink of the Bronze Age 4,200 years ago had a marked role in the formation of Central Europe's genetic makeup."

Neolithic hunter-gatherers and farmers lived side by side without having sex for more than 2,000 years, new research suggests.

Analysis of fossil skeletons unearthed in a cave in Germany revealed that the two populations remained mostly separate for two millennia, despite living in the same region.

"We thought up till now that shortly after the introduction of farming in central Europe all hunter-gatherers kind of vanished," said study co-author Ruth Bollongino, an archaeogeneticist at the Johannes Gutenberg University in Germany. "This is mainly because we hardly find any artifacts. We have absolutely no ongoing proof of a hunter-gatherer lifestyle after the early Neolithic," around the time when farmers were first migrating from the Middle East.

The findings were published today (Oct. 10) in the journal Science. In a separate study in the same issue of Science, researchers found that by 3,500 years ago, all of the genetic makeup of modern Europe was mostly in place.

Along the scenic coast of the northern Aegean Sea, archaeologists have uncovered a Greek portico, which, 2,500 years ago, would have been a bustling public space, something like an ancient strip mall.

The seaside portico, or stoa, stretches 130 feet (40 meters) across with seven rooms inside, each bearing the distinct architectural touches of their ancient shop owners, the site's excavators say. Strewn about the ruins, archaeologists found coins, vases and other artifacts that hold clues to when and how people lived in the archaic city.

"Porticos are well known from the Hellenistic period, from the third to first century B.C., but earlier examples are extremely rare," archaeologist Jacques Perreault, a classicist at the University of Montreal, said in a statement. "The one from Argilos is the oldest example to date from northern Greece and is truly unique." [See Photos from the Portico Excavation at Argilos]