петък, 23 юли 2010 г.

четвъртък, 3 юни 2010 г.

вторник, 27 април 2010 г.

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сряда, 21 април 2010 г.

понеделник, 19 април 2010 г.

Mystery object in Starburst Galaxy M82

http://www.jb.man.ac.uk/news/2010/M82mystery/

Iran leader Khamenei brands US 'nuclear criminal'

Iran leader Khamenei brands US 'nuclear criminal'

Iranian President Mahmoud Ahmadinejad delivers a speech at the 
opening session of a two-day nuclear disarmament conference hosted by 
Tehran on 17 April
Iran is holding its own nuclear summit after one in Washington
Iran's Supreme Leader Ayatollah Ali Khamenei has labelled the US an "atomic criminal" at a conference on nuclear disarmament in Tehran.
He also said that the use of nuclear weapons was prohibited by religion.
Iran's President Mahmoud Ahmadinejad said an independent body should be set up to oversee nuclear disarmament.
Iran has been angered by a recent US review of nuclear policy, which Tehran sees as a threat to use nuclear weapons against it, a BBC correspondent says.
Iran's leadership has used this conference on nuclear disarmament to underline what it says is its moral opposition to nuclear weapons, says our Tehran correspondent Jon Leyne, reporting from London.
He says it is clearly meant as an answer to those who fear Iran is itself trying to develop its own nuclear arsenal.
Nuclear arms 'prohibited'
Ayatollah Khamenei said in a message read out at the conference: "Only the US government has committed an atomic crime.
"The world's only atomic criminal lies and presents itself as being against nuclear weapons proliferation, while it has not taken any serious measures in this regard," he said.
He also told the conference that the use of nuclear weapons was "haram" - prohibited under Islam.
President Ahmadinejad called for the US and all countries who possessed nuclear weapons to be suspended from the UN nuclear watchdog, the International Atomic Energy Agency.
He said there should be an independent international body set up to oversee nuclear disarmament.
Our correspondent says the debate will no doubt intensify as a conference approaches that will review the nuclear non-proliferation treaty, just at a time when Washington rallies support for new sanctions on Iran over its nuclear programme.
The US hosted a big international conference of 47 nations last week to discuss nuclear security.
Iran was not invited as the US fears Tehran is trying to develop nuclear weapons.
Tehran says its nuclear programme is for purely peaceful purposes.

събота, 17 април 2010 г.

Report: Gates sent White House memo on Iran policy

WASHINGTON – A memo from Defense Secretary Robert Gates to the White House warned that the United States lacks a nimble long-term plan for dealing with Iran's nuclear program, according to a published report.
Gates wrote the three-page memo in January and it set off efforts in the Pentagon, White House and intelligence agencies to come up with new options, including the use of the military, The New York Times said in its Sunday editions, quoting unnamed government officials.
White House officials Saturday night strongly disagreed with the comments that the memo caused a reconsideration of the administration's approach to Iran.
"It is absolutely false that any memo touched off a reassessment of our options," National Security Council spokesman Benjamin Rhodes told The Associated Press. "This administration has been planning for all contingencies regarding Iran for many months."
One senior official described the memo as "a wake-up call," the paper reported. But the recipient of the document, Gen. James Jones, President Barack Obama's national security adviser, told the newspaper in an interview that the administration has a plan that "anticipates the full range of contingencies."
Pentagon spokesman Geoff Morrell, who did not confirm the memo Saturday night, said the White House has reviewed many Iran options.
"The secretary believes the president and his national security team have spent an extraordinary amount of time and effort considering and preparing for the full range of contingencies with respect to Iran," Morrell said.
The U.S. is pressing for new international sanctions against Iran. The memo contemplates a situation in which sanctions and diplomacy fail to dissuade Iran from pursuing nuclear capability, the Times said.
Obama set a deadline of the end of 2009 for Iran to respond to his offer of dialogue to resolve concerns about Iran's accelerated nuclear development.
Iran spurned the offer, and since then the administration has pursued what it calls the "pressure track," a combination of stepped-up military activity in Iran's neighborhood and a hard push for a new round of international sanctions that would pinch Iran economically.
Gates and other senior members of the administration have issued increasingly stern warnings to Iran that its nuclear program is costing it friends and options worldwide, while sticking to the long-held view that a U.S. or Israeli military strike on Iranian nuclear facilities would be counterproductive.
Obama and other administration figures have drawn a line that says Iran will not be allowed to become a nuclear state, but they have not spelled out what the United States would do if Iran gained the ability to produce a weapon but does not actually field one.
Four senior administration officials told Congress last week that Iran is perhaps a year away from being able to build a weapon but that it would take two- to five additional years to turn the device into an effective weapon that could be launched against an enemy.
Iran claims its nuclear program is intended for energy production, not a weapon.
"All we really know is that Iran is widening and deepening its nuclear weapons capabilities, David Albright, founder and president of the Institute for Science and International Security, told the AP. "We don't have any insight into what they're thinking about doing — whether they'll just live with a nuclear weapons capability which will probably include learning more about nuclear weapons themselves, or they'll actually build them."
___
Associated Press National Security Writer Anne Gearan and AP writer Jackie Quinn contributed to this report.

Volcano in Iceland? Planes not Flying? Count Your Lucky Stars

The eruption of Iceland's very photogenic Eyjafjallajokull volcano has heated up in the last few days, leading to the cancellation of hundreds of commercial plane flights and effectively shutting down much of northern Europe's airspace.
This is a hassle for thousands of people, and it's a testament to the region's governments and aviation authorities that no one is taking chances here -- the danger to aircraft from volcanic ash clouds is not to be trifled with.
That said, it's worth noting that this eruption is a pipsqueak by Iceland's standards. The country's famously raw, rugged beauty is born out of impressive volcanic credentials -- it not only straddles the mid-Atlantic ridge, where the European and North American tectonic plates are spreading apart, it is also a hotspot like Hawaii.
In 1783, the world saw what Iceland's volcanoes are capable of. On June 8, the Laki fissures began erupting in the southern part of the island.
The effects were catastrophic on Iceland: 9,000 people were killed, between 20 and 25 percent of the population at the time. Livestock herds were decimated, animals' succumbed to grisly deaths as their teeth and bones dissolved in millions of tons of hydrogen fluoride gas that poured forth from Laki.
Through the summer, sulfur dioxide fumes swept down through Europe, turning the sun blood red and throwing weather systems around the planet into chaos for years. Inhalation of the gas is thought to have killed tens of thousands of Europeans.
As this latest, much smaller eruption plume swirls across the United Kingdom, Scandinavia, and countries throughout Europe, the effects will be much more muted. But volcanic ash poses more than just a threat to airplanes -- there is evidence that even in small concentrations, it can kill people.
From a scientific standpoint, this eruption is a terrific opportunity to see how volcanic ash and gases disperse across Europe, and how they affect air quality in populated areas. From a human standpoint, the sunsets will likely be spectacular across the continent.Overall, people should not be worried about a large impact on public health -- any effects on people's airways or aggravating respiratory diseases will likely be minor, or may not show up at all.
But history shows us that with the eruption of Eyjafjallajokull, the nearby Katla volcano usually follows, and more violently. If that happens, it may be time to break out the breathing masks.
Image: Albert Jakobsson (taken during first phase of eruption in late March)