Siemens is warning customers of a new and highly sophisticated virus that targets the computers used to manage large-scale industrial control systems used by manufacturing and utility companies.

Siemens learned about the issue on July 14, Siemens Industry spokesman Michael Krampe said in an e-mail message Friday. "The company immediately assembled a team of experts to evaluate the situation. Siemens is taking all precautions to alert its customers to the potential risks of this virus," he said.

Security experts believe the virus appears to be the kind of threat they have worried about for years -- malicious software designed to infiltrate the systems used to run factories and parts of the critical infrastructure.

In the first week of a joint Indonesia - U.S. exploration of the deep ocean north of Sulawesi, Indonesia, NOAA Ship Okeanos Explorer's built-in multibeam sonar mapped a huge undersea volcano while cameras on the ship's remotely-operated vehicle took high-definition images of the feature called Kawio Barat, referring to the ocean area west of Kawio Islands.

Scientists chose Kawio Barat as the first target for the expedition based on satellite information and data collected by a joint Indonesian-Australian team in 2004. The immense underwater feature served as an ideal initial target to calibrate onboard tools and technologies being used on the ships maiden voyage. Expedition scientists hope the maps and video produced from the expedition will pave the way for other researchers to follow up on their preliminary findings.

Archeologists in Guatemala have discovered a Mayan king's tomb packed with a well-preserved hoard of carvings, ceramics and children's bones that cast fresh light on the vanished civilisation.

Researchers uncovered the burial chamber in Guatemala's the jungle-covered Peten region in May, but the discovery has only just been made public.

The tomb is thought to date from 300 - 600AD and is located beneath the El Diablo pyramid in the city of El Zotz.

The well-sealed tomb - measuring ten feet long by nearly four feet wide - helped preserve textiles, wood carvings and red and yellow ceramics decorated with fish and wild boar motifs.

"It's like their Fort Knox, their depositary of wealth with textiles and ... trade items - and that's what's overwhelming about it," said Stephen Houston, the dig's director at El Zotz, who is based at Brown University in the United States.

Shifting sands and surging tides on the Outer Banks have delivered more pieces from what may be the oldest shipwreck on the North Carolina coast.

More could be out there.

"Anywhere along that beach, anyone could find something," said Bob Hill of San Diego, who owns a house in Duck.

In May, about 15 miles south of where the main wreckage was discovered, Hill found a 15-foot-long piece of a keel that had wooden pegs and scarf and key types of joinery that matched the 12-ton remains of a wreck that could date from the Jamestown era.

"As soon as I saw the pegs, that was the clincher," he said.

Let's take the history lesson most of us learnt in our school days. Though we come to understand that we have inherited a lot of good stuff from our deep cultural heritage, there is however one myth about the 'Aryan' theory of invasion into India that has been shoved down our throats. According to this theory, the so-called Aryans, the original people behind the Vedas (the oldest scriptures of Hinduism), were reinterpreted not as sages and seers - the rishis and yogis of Hindu historical tradition - but as primitive plunderers. Naturally this cast a shadow on the Hindu religion and culture as a whole.

We need to know more about this myth as this comes in the way of who we really are and the source of our deep culture. Due to this myth perpetrated by colonial historians, it been thrust on us we are 'Dravidians' subjugated by the 'Aryans'. Correcting this myth thereby will alter the very fabric of how we interpret ourselves and our ancient civilization. In fact the word 'Dravid' refers to the geographical 'Panch Dravida area' extending from central India down south i.e. Andhra, Tamil Nadu and Kerala, Karnataka, Maharashtra and Konkan and also Gujarat. So the term Dravid is used in Indian literature to denote lands to the south of Vindhya ranges.

The Deccan Herald on June 25, 2010 reports that "The intelligentsia and even the politicians were in for shock at the World Classical Tamil Conference in Coimbatore, when a Finland-based Indologist Prof Asko Parpola turned the spotlight on a Dravidian-Aryan continuum while demolishing the Aryan-Dravidian divide as a myth".

Even the previous head pontiff of the Kanchi Kamakoti Math ~ Sri Chandrashekarendra Saraswati Swamigal confirms that "It is wrong to classify the people of this land into Aryan and Dravidian. In Sanskrit, Arya means, worthy of respect, and anaarya means, not worthy of honour or worship. Whoever is worthy of respect or honour is Arya, and therefore, Aryans are not people belonging to any particular part of the country". He often used to say that this Aryan-Dravidian divide was a canard created by the erstwhile British rulers of India in their continuing efforts to explore and exploit all the avenues of continued differences between the people of India, so as to sustain themselves in power. 'Aryans' does not refer to a particular race but rather refer to characteristics that are common to a broad set of people belonging to the Indian civilisation. 'Aryan', literally, is nothing but an anglicised form of addressing the Arya. The root word is only Arya which means 'noble'.

James Cameron's futuristic vision in the Terminator series of predator robots flying the skies took another step towards becoming reality this week, when the British military unveiled a top-secret long-range unmanned drone.

Called Taranis, after the Celtic god of thunder, the unmanned drone is capable of carrying out reconnaissance missions in other continents and has a long-range strike ability with a cache of bombs and missiles available.

And just like those "Hunter-Killer" robot jets in the Terminator series, the Taranis has been designed to use artificial intelligence that could potentially allow the drone to identify and attack enemy targets on its own.

The size of a small plane, and similar in shape to the American B2 stealth bomber, the Taranis is "the first of its kind" according to the U.K. military and defence contractor BAE systems.

The prototype, unveiled to journalists on Monday by the U.K. Ministry of Defence under tight security, cost about $225 million and took some three years to design and build.

"It could then carry out intelligence, surveillance and reconnaissance activity ... It's a combat aircraft with weapons so it could strike with precision weapons," Squadron Leader Bruno Wood, the Ministry of Defence spokesman for the Taranis project, told The Globe and Mail earlier this week.

Today, like every other summer day for the past 11 years, Stephen Batiuk will wake at 4 a.m. to get to work by 5, a mostly futile attempt to escape the punishing sun on Turkey's Amuq Plain.

Then, he will try once more to shake out the secrets from astonishing ruins almost 3,000 years old.

The Ottawa archaeologist is working on one of the world's richest digs: 100,000 artefacts a year emerge from Tel Tayinat. But the shards, bits of gold, even the monumental palace and temple, only hint of the power and complexity that this ancient city once held.

Every day, the puzzle for Batiuk and his 30 or so colleagues in the University of Toronto team is the same: who were these people? How did they think? Who came through as traders, and who came waging war? Most intriguing: why did they simply walk away one day and vanish into history?

"Here we have this kingdom that sort of emerges out of nowhere," says Batiuk, 36. "So we are looking at how people come in from the Greek world, indigenous people, people from central Anatolia, further east ... how it all sort of coalesces into this new kingdom.

"We are looking at early multiculturalism, to borrow a Canadian term, how art and written language got going. The temple can give us an idea of how religion played a role in forming national identity."

Divers have found bottles of champagne some 230 years old on the bottom of the Baltic which a wine expert described Saturday as tasting "fabulous".

Thought to be premium brand Veuve Clicquot, the 30 bottles discovered perfectly preserved at a depth of 55 metres (180 feet) could have been in a consignment sent by France's King Louis XVI to the Russian Imperial Court.

If confirmed, it would be by far the oldest champagne still drinkable in the world, thanks to the ideal conditions of cold and darkness.

"We have contacted (makers) Moet & Chandon and they are 98 percent certain it is Veuve Clicquot," Christian Ekstroem, the head of the diving team, told AFP.

"There is an anchor on the cork and they told me they are the only ones to have used this sign," he said, adding that a sample of the champagne has been sent to Moet & Chandon for their analysis.

In a close-up from the HiRISE instrument onboard the Mars Reconnaissance Orbiter, this mysterious dark pit, about 150 meters across, lies on the north slope of ancient martian volcano Arsia Mons. Lacking raised rims and other impact crater characteristics, this pit and others like it were originally identified in visible light and infrared images from the Mars Odyssey and Mars Global Surveyor spacecraft. While the visible light images showed only darkness within, infrared thermal signatures indicated that the openings penetrated deep under the martian surface and perhaps were skylights to underground caverns.

The Styx River, the legendary portal to the underworld, harbors a deadly bacteria that may have ended Alexander's life.

An extraordinarily toxic bacterium harbored by the "infernal" Styx River might have been the fabled poison rumored to have killed Alexander the Great (356 - 323 B.C.) more than 2,000 years ago, according to a scientific-meets-mythic detective study.

The research, which will be presented next week at the XII International Congress of Toxicology annual meetings in Barcelona, Spain, reviews ancient literary evidence on the Styx poison in light of modern geology and toxicology.

According to the study, calicheamicin, a secondary metabolite of Micromonospora echinospora, is what gave the river its toxic reputation.

The Styx was the portal to the underworld, according to myth. Here the gods swore sacred oaths.