Flame Nebula

Of course, the Flame Nebula is not on fire. Also known as NGC 2024, the nebula's suggestive reddish color is due to the glow of hydrogen atoms at the edge of the giant Orion molecular cloud complex some 1,500 light-years away. The hydrogen atoms have been ionized, or stripped of their electrons, and glow as the atoms and electrons recombine. But what ionizes the hydrogen atoms? In this close-up view, a dark lane of absorbing interstellar dust stands out in silhouette against the hydrogen glow and actually hides the true source of the Flame Nebula's energy from optical telescopes. Behind the dark lane lies a cluster of hot, young stars, seen at infrared wavelengths through the obscuring dust. A young, massive star in that cluster is the likely source of energetic ultraviolet radiation that ionizes the hydrogen gas in the Flame Nebula.

Chavez gets sweeping new powers

Venezuelan President Hugo Chavez has been granted new special powers after an extraordinary assembly vote in the main square of the capital, Caracas.

Mr Chavez will now be able to rule by decree for the next 18 months.

His planned reforms will affect the energy sector, telecommunications, the economy and defence, among others.

Mr Chavez has said the legislation will transform the country into a socialist society. Opponents describe the new law as an abuse of power.

In the open-air public ceremony in the capital, lawmakers voted unanimously to grant the Venezuelan leader the new powers, shouting: "Long live Socialism."

He has been trying to export his kind of radical populism and I think his behaviour is threatening to democracies in the region US deputy secretary of state John Negroponte

Congressional Vice President Roberto Hernandez said the assembly passed the law so Mr Chavez could "urgently set up the framework for resolving the grave problems we have".

According to the so-called enabling law, the president can remake laws for "the construction of a new, sustainable economic and social model" to achieve an equal distribution of wealth.

Mr Chavez will be able to effect change by presidential decree in 11 broad areas.

Commanding position

It is expected that President Chavez will, in effect, nationalise the oil and gas industries, taking a majority share in their ownership.

Mr Chavez has huge assembly support after an opposition boycott

The move will involve companies like Exxon, BP and Chevron but it is uncertain what, if any, form of compensation those companies might receive.

Mr Chavez has popular support after his re-election victory last year, the assembly has been on his side since the opposition boycotted parliamentary elections in 2005, and Venezuela is reaping huge revenues from high oil prices.

He wants to scrap presidential term limits and rewrite the constitution to build what he calls "socialism for the 21st Century".

Officials say he has no intention of turning Venezuela into a communist state, arguing that freedom of speech and religion will all be safe.

But the US has again been critical of his leadership.

John Negroponte told a hearing to confirm his position as the new deputy secretary of state that Mr Chavez has not been a "constructive force in the hemisphere".

"He has been trying to export his kind of radical populism and I think that his behaviour is threatening to democracies in the region," Mr Negroponte said.

source: bbc.co.uk

Scientists allege White House pressure

WASHINGTON (Reuters) - U.S. scientists felt pressured to tailor their writings on global warming to fit the Bush administration's skepticism, in some cases at the behest of an ex-oil industry lobbyist, a congressional committee heard on Tuesday.

"Our investigations found high-quality science struggling to get out," Francesca Grifo of the watchdog group Union of Concerned Scientists told members of the House Oversight and Government Reform Committee.

A survey by the group found that 150 climate scientists personally experienced political interference in the past five years, for a total of at least 435 incidents.

"Nearly half of all respondents perceived or personally experienced pressure to eliminate the words 'climate change,' 'global warming' or other similar terms from a variety of communications," Grifo said.

Rick Piltz, a former U.S. government scientist who said he resigned in 2005 after pressure to soft-pedal findings on global warming, told the committee in prepared testimony that former White House official Phil Cooney took an active role in casting doubt on the consequences of global climate change.

Cooney, who was a lobbyist for the American Petroleum Institute before becoming chief of staff at the White House Council on Environmental Quality, resigned in 2005 to work for oil giant ExxonMobil.

Documents on global climate change required Cooney's review and approval, Piltz said.

"His edits of program reports, which had been drafted and approved by career science program managers, had the cumulative effect of adding an enhanced sense of scientific uncertainty about global warming and minimizing its likely consequences," Piltz said.

The hearing was one of two on Tuesday spotlighting global climate change; a Senate forum featured testimony from members of that chamber, including presidential hopefuls Hillary Clinton of New York and Barack Obama of Illinois among Democrats and Republican John McCain of Arizona.

Stonehenge builders' houses found

Archaeologists say they have found a huge ancient settlement used by the people who built Stonehenge.

Excavations at Durrington Walls, near the legendary Salisbury Plain monument, uncovered remains of ancient houses.

People seem to have occupied the sites seasonally, using them for ritual feasting and funeral ceremonies.

In ancient times, this settlement would have housed hundreds of people, making it the largest Neolithic village ever found in Britain.

The dwellings date back to 2,600-2,500 BC, the same period that Stonehenge was built.

"In what were houses, we have excavated the outlines on the floors of box beds and wooden dressers or cupboards," said archaeologist Mike Parker Pearson of Sheffield University.

He said he based this on the fact that these abodes had exactly the same layout as Neolithic houses at Skara Brae in Orkney, which have survived intact because - unlike these dwellings - they were made of stone.

The researchers have excavated eight houses in total that belonged to the Durrington settlement. But they have identified many other probable dwellings using geophysical surveying equipment.

The archaeologists think there could have been at least one hundred houses.

full story @ bbc.co.uk

Japanese marine park captures rare shark on film

TOKYO (Reuters) - A species of shark rarely seen alive because its natural habitat is 600 meters (2,000 ft) or more under the sea was captured on film by staff at a Japanese marine park this week.

The Awashima Marine Park in Shizuoka, south of Tokyo, was alerted by a fisherman at a nearby port on Sunday that he had spotted an odd-looking eel-like creature with a mouthful of needle-sharp teeth.

Marine park staff caught the 1.6 meter (5 ft) long creature, which they identified as a female frilled shark, sometimes referred to as a "living fossil" because it is a primitive species that has changed little since prehistoric times.

The shark appeared to be in poor condition when park staff moved it to a seawater pool where they filmed it swimming and opening its jaws.

"We believe moving pictures of a live specimen are extremely rare," said an official at the park. "They live between 600 and 1,000 meters under the water, which is deeper than humans can go."

"We think it may have come close to the surface because it was sick, or else it was weakened because it was in shallow waters," the official said.

The shark died a few hours after being caught.

Frilled sharks, which feed on other sharks and sea creatures, are sometimes caught in the nets of trawlers but are rarely seen alive.

The Sombrero Galaxy in Infrared

This floating ring is the size of a galaxy. In fact, it is part of the photogenic Sombrero Galaxy, one of the largest galaxies in the nearby Virgo Cluster of Galaxies. The dark band of dust that obscures the mid-section of the Sombrero Galaxy in optical light actually glows brightly in infrared light. The above image shows the infrared glow, recently recorded by the orbiting Spitzer Space Telescope, superposed in false-color on an existing image taken by NASA's Hubble Space Telescope in optical light. The Sombrero Galaxy, also known as M104, spans about 50,000 light years across and lies 28 million light years away. M104 can be seen with a small telescope in the direction of the constellation Virgo.

Orion's Cradle

Cradled in glowing hydrogen, stellar nurseries in Orion lie at the edge of a giant molecular cloud some 1,500 light-years away. This breath-taking view spans about 13 degrees across the center of the well-known constellation with the Great Orion Nebula, the closest large star forming region, just right of center. The deep mosaic also includes (left of center), the Horsehead Nebula, the Flame Nebula, and Orion's belt stars. Image data acquired with a hydrogen alpha filter adds other remarkable features to this wide angle cosmic vista -- pervasive tendrils of energized atomic hydrogen gas and portions of the surrounding Barnard's Loop. While the Orion Nebula and belt stars are easy to see with the unaided eye, emission from the extensive interstellar gas is faint and much harder to record, even in telescopic views of the nebula-rich complex.

Chinese Professor Cracks Fifth Data Security Algorithm

TAIPEI—Within four years, the U.S. government will cease to use SHA-1 (Secure Hash Algorithm) for digital signatures, and convert to a new and more advanced "hash" algorithm, according to the article "Security Cracked!" from New Scientist

. The reason for this change is that associate professor Wang Xiaoyun of Beijing's Tsinghua University and Shandong University of Technology, and her associates, have already cracked SHA-1.

Wang also cracked MD5 (Message Digest 5), the hash algorithm most commonly used before SHA-1 became popular. Previous attacks on MD5 required over a million years of supercomputer time, but Wang and her research team obtained results using ordinary personal computers.

In early 2005, Wang and her research team announced that they had succeeded in cracking SHA-1. In addition to the U.S. government, well-known companies like Microsoft, Sun, Atmel, and others have also announced that they will no longer be using SHA-1.

Two years ago, Wang announced at an international data security conference that her team had successfully cracked four well-known hash algorithms—MD5, HAVAL-128, MD4, and RIPEMD—within ten years.

A few months later, she cracked the even more robust SHA-1.

full story @ epochtime.com

Saturnian Psychedelia

This psychedelic view of Saturn and its rings is a composite made from images taken with the Cassini spacecraft wide-angle camera using spectral filters sensitive to wavelengths of infrared light centered at 728, 752 and 890 nanometers.

Cassini acquired the view on Dec. 13, 2006 at a distance of approximately 822,000 kilometers (511,000 miles) from Saturn. Image scale is 46 kilometers (28 miles) per pixel.

The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate, Washington, D.C. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging operations center is based at the Space Science Institute in Boulder, Colo.

For more information about the Cassini-Huygens mission visit http://saturn.jpl.nasa.gov . The Cassini imaging team homepage is at http://ciclops.org .

Credit: NASA/JPL/Space Science Institute

The Magnificent Tail of Comet McNaught

Comet McNaught, the Great Comet of 2007, has grown a long and filamentary tail. The spectacular tail spreads across the sky and is visible to Southern Hemisphere observers just after sunset. The head of the comet remains quite bright and easily visible to even city observers without any optical aide. The amazing tail is visible on long exposures and even to the unaided eye from a dark location. Reports even have the tail visible just above the horizon after sunset for many northern observers as well. Comet McNaught, estimated at magnitude -2 (minus two), was caught by the comet's discoverer in the above image just after sunset last Friday from Siding Spring Observatory in Australia. Comet McNaught, the brightest comet in decades, is now fading as it moves further into southern skies and away from the Sun and Earth.

Auroras from Space

If Iris, the goddess of the rainbow, had a sister she would be the goddess of Aurora. Glowing green ripples form arcs that constantly transform their shape into new glowing diaphanous forms. There is nothing static about auroras. They are always moving, always changing, and like snowflakes, each display is different from the last. Sometimes, there is a faint touch of red layered above the green. There are bright spots within the arcs that come and go, and transform into upward directed rays topped by feathery red structures. Sometimes there will be six or more rays, sometimes none at all.

source: earthobservatory.nasa.gov

Saturn's Hyperion

What lies at the bottom of Hyperion's strange craters? Nobody knows. To help find out, the robot Cassini spacecraft now orbiting Saturn swooped past the sponge-textured moon again last week and took an image of unprecedented detail. That image, shown above in false color, shows a remarkable world strewn with strange craters and a generally odd surface. The slight differences in color likely show differences in surface composition. At the bottom of most craters lies some type of unknown dark material. Inspection of the image shows bright features indicating that the dark material might be only tens of meters thick in some places. Hyperion is about 250 kilometers across, rotates chaotically, and has a density so low that it might house a vast system of caverns inside.

Monster Bunnies For North Korea

An east German pensioner who breeds rabbits the size of dogs has been asked by North Korea to help set up a big bunny farm to alleviate food shortages in the communist country. Now journalists and rabbit gourmets from around the world are thumping at his door.

It all started when Karl Szmolinsky won a prize for breeding Germany's largest rabbit, a friendly-looking 10.5 kilogram (23 lbs) "German Gray Giant" called Robert, in February 2006.

Images of the chubby monster went around the world and reached the reclusive communist state of North Korea, a country of 23 million which according to the United Nations Food Programme suffers widespread food shortages and where many people "struggle to feed themselves on a diet critically deficient in protein, fats and micronutrients."

source: spiegel.de

How Can We Convert the US to the Metric System?

Despite past efforts of the 1970s and 1980s, the United States remains one of only three countries (others are Liberia and Myanmar) that does not use the metric system. Staying with imperial measurements has only served to handicap American industry and economy. Attempts to get Americans using the Celsius scale, or putting up speed limits in kilometers per hour have been squashed dead. Not only that, but some Americans actually see metrication efforts as an assault on 'our way' of measuring.

Winter Weather Across the United States

A powerful winter storm swept across the United States on January 15 and January 16, 2007, leaving much of the country under snow and ice. The storm moved from northern Texas, across the Midwest, and into the Northeast. By January 16, when the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured this image, the clouds cleared enough to reveal a path of snow across the Midwest. The Intermountain West was also buried in a blanket of white snow, but the Southeast and the East were still covered by a broad band of clouds. More winter weather swamped the Midwest in the days that followed. By January 19, icy roads and other weather-related incidents had claimed 70 lives, reported CNN.

This image of the United States was stitched together from three satellite overpasses. Faint diagonal lines across the image reveal the boundary between each image. The large image provided above has a resolution of one kilometer per pixel.

NASA image courtesy the MODIS Rapid Response Team at NASA GSFC.

An Unlikely Alliance

Environmental Woes: A lignite-fired power plant spews smoke over the German village of Gusdorf

By Samantha Henig

Newsweek

Updated: 11:13 a.m. CT Jan 17, 2007

Jan. 17, 2007 - A group of 28 scientists and evangelical Christians today announced their commitment to working together to address global and environmental climate change--an issue that they say is pressing enough to trump any theological differences between the groups. Eric Chivian, director of the Center for Health and the Global Environment at Harvard Medical School, is one of the scientists leading the collaboration. In an interview with NEWSWEEK’s Samantha Henig, Chivian discussed the origins of this peculiar union, what the two groups have in common, how the evangelical Christian community can help scientists and the spiritual significance of his fruit garden. Excerpts:

NEWSWEEK: Scientists and evangelicals have announced that they are coming together to address global warming and environmental change. What exactly does this collaboration entail?
Eric Chivian: We believe that it was very important for these two groups--scientists and evangelical Christians--to get together and speak with one voice, because the public sees us as disagreeing on a whole variety of issues. And yet it was clear after we began to meet that we really shared a very deep reverence for life and we shared an enormous concern about what was being done to it by human activity. And that was a surprise to us.

What do you have planned?
We are planning to meet with a bipartisan group of members of the Congress this afternoon. I know we’re meeting with Sen. Barbara Boxer and with the staff of Sen. Dick Lugar, and others in both the House and Senate. We are planning a large meeting some time in the near future of our two communities, a large public meeting. This is just the beginning of this dialogue.

Who are the scientists working on this? Are any of them members of the National Association of Evangelicals?
Some in the evangelical group are also scientists. For example, Cal Dewitt is a professor of environmental science at the University of Wisconsin, but he’s also a prominent evangelical. Randy Isaac is a scientist who runs something called the American Scientific Affiliation, which is a group of some 2,000 scientists, most of whom are evangelicals, but are also scientists. So this distinction between scientist and evangelical is not a firm one.

It seems like an unlikely pairing, evangelicals and scientists.
Yes, it does.

continue @ newsweek

Cold War era military artwork from the Military Art Collection of the United States Defence Intelligence Agency (DIA)

See Full Gallery @ militaryphotos.net

On Approach: Jupiter and Io

This image was taken on Jan. 8, 2007, with the New Horizons Long Range Reconnaissance Imager (LORRI), while the spacecraft was about 81 million kilometers (about 50 million miles) from Jupiter. Jupiter's volcanic moon Io is to the right; the planet's Great Red Spot is also visible. The image was one of 11 taken during the Jan. 8 approach sequence, which signaled the opening of the New Horizons Jupiter encounter.

Even in these early approach images, Jupiter shows different face than what previous visiting spacecraft - such as Voyager 1, Galileo and Cassini - have seen. Regions around the equator and in the southern tropical latitudes seem remarkably calm, even in the typically turbulent "wake" behind the Great Red Spot.

The New Horizons science team will scrutinize these major meteorological features - including the unexpectedly calm regions - to understand the diverse variety of dynamical processes on the solar system's largest planet. These include the newly formed Little Red Spot, the Great Red Spot and a variety of zonal features.

Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute.

Expert Wants to Decertify Global Warming Skeptics

Apparently in the Senate, at least one scientist wants to put a permanent stop to any arguments over Global Warming. The Weather Channel's most prominent climatologist is advocating that broadcast meteorologists be stripped of their scientific certification if they express skepticism about predictions of manmade catastrophic global warming.

The First HD DVD Movie Hits BitTorrent

Ars Technica reports that the first HD DVD movie has made its way onto BitTorrent, showing that current DRM efforts to prevent illegal sharing of copyrighted content are still futile and fighting an uphill battle. From the article: "The pirates of the world have fired another salvo in their ongoing war with copy protection schemes with the first release of the first full-resolution rip of an HD DVD movie on BitTorrent. The movie, Serenity, was made available as a .EVO file and is playable on most DVD playback software packages such as PowerDVD. The file was encoded in MPEG-4 VC-1 and the resulting file size was a hefty 19.6 GB."