Distant Dwarf Planet Secrets Revealed

Orbiting at the frozen edges of our solar system, the mysterious dwarf planet Makemake is finally coming out of the shadows as astronomers get their best view yet of Pluto's little sibling.

Discovered in 2005, Makemake—pronounced MAH-keh MAH-keh after a Polynesian creation god—is one of five Pluto-like objects that prompted a redefining of the term "planet" and the creation of a new group of dwarf planets in 2006. (Related: "Pluto Not a Planet, Astronomers Rule.")

Just like the slightly larger Pluto, this icy world circles our sun beyond Neptune. Researchers expected Makemake to also have a global atmosphere—but new evidence reveals that isn't the case.

Staring at a Star

An international team of astronomers was able for the first time to probe Makemake's physical characteristics using the European Southern Observatory's three most powerful telescopes in Chile. The researchers observed the change in light given off by a distant star as the dwarf planet passed in front of it. (Learn how scientists found Makemake.)

"These events are extremely difficult to predict and observe, but they are the only means of obtaining accurate knowledge of important properties of dwarf planets," said Jose Luis Ortiz, lead author of this new study and an astronomer at the Instituto de Astrofisica de Andalucia, in Spain.

It's like trying to study a coin from a distance of 30 miles (48 kilometers) or more, Ortiz added.

Ortiz and his team knew Makemake didn't have an atmosphere when light from the background star abruptly dimmed and brightened as the chilly world drifted across its face.

"The light went off very abruptly from all the sites we observed the event so this means this world cannot have a substantial and global atmosphere like that of its sibling Pluto," Ortiz said.

If Makemake had an atmosphere, light from the star would gradually decrease and increase as the dwarf planet passed in front.

Coming Into Focus

The team's new observations add much more detail to our view of Makemake—not only limiting the possibility of an atmosphere but also determining the planet's size and surface more accurately.

"We think Makemake is a sphere flattened slightly at both poles and mostly covered with very white ices—mainly of methane," said Ortiz.

"But there are also indications for some organic material at least at some places; this material is usually very red and we think in a small percentage of the surface, the terrain is quite dark," he added.

Why Makemake lacks a global atmosphere remains a big mystery, but Ortiz does have a theory. Pluto is covered in nitrogen ice. When the sun heats this volatile material, it turns straight into a gas, creating Pluto's atmosphere.

Makemake lacks nitrogen ice on its surface, so there is nothing for the sun to heat into a gas to provide an atmosphere.

The dwarf planet has less mass, and a weaker gravitational field, than Pluto, said Ortiz. This means that over eons of time, Makemake may not have been able to hang on to its nitrogen.

Methane ice will also transform into a gas when heated. But since the dwarf planet is nearly at its furthest distance from the sun, Ortiz believes that Makemake's surface methane is still frozen. (Learn about orbital planes.)

And even if the methane were to transform into a gas, any resulting atmosphere would cover, at most, only ten percent of the planet, said Ortiz.

The new results are detailed today in the journal Nature.

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After Sandy, World Hopes to Hear New US Voice on Climate Change

During a year with a monster storm and scorching heat waves, Americans have experienced the kind of freakish weather that many scientists say will occur more often on a warming planet.

And as a re-elected president talks about global warming again, climate activists are cautiously optimistic that the U.S. will be more than a disinterested bystander when the U.N. climate talks resume Monday with a two-week conference in Qatar.

"I think there will be expectations from countries to hear a new voice from the United States," said Jennifer Morgan, director of the climate and energy program at the World Resources Institute in Washington.

The climate officials and environment ministers meeting in the Qatari capital of Doha will not come up with an answer to the global temperature rise that is already melting Arctic sea ice and permafrost, raising and acidifying the seas, and shifting rainfall patterns, which has an impact on floods and droughts.

They will focus on side issues, like extending the Kyoto protocol — an expiring emissions pact with a dwindling number of members — and ramping up climate financing for poor nations.

They will also try to structure the talks for a new global climate deal that is supposed to be adopted in 2015, a process in which American leadership is considered crucial.

Many were disappointed that Obama didn't put more emphasis on climate change during his first term. He took some steps to rein in emissions of heat-trapping gases, such as sharply increasing fuel efficiency standards for cars and trucks. But a climate bill that would have capped U.S. emissions stalled in the Senate.

"We need the U.S. to engage even more," European Union Climate Commissioner Connie Hedegaard told The Associated Press. "Because that can change the dynamic of the talks."

The world tried to move forward without the U.S. after the Bush Administration abandoned the Kyoto Protocol, a 1997 pact limiting greenhouse emissions from industrialized nations. As that agreement expires this year, the climate curves are still pointing in the wrong direction.

The concentration of heat-trapping gases like carbon dioxide has jumped 20 percent since 2000, primarily from the burning of fossil fuels like coal and oil, according to a U.N. report released this week. And each year, the gap between what researchers say must be done to reverse this trend, and what's actually being done, gets wider.

Bridging that gap, through clean technology and renewable energy, is not just up to the U.S., but to countries like India and China, whose carbon emissions are growing the fastest as their economies expand.

But Obama raised hopes of a more robust U.S. role in the talks when he called for a national "conversation" on climate change after winning re-election. The issue had been virtually absent in the presidential campaigning until Hurricane Sandy slammed into the East Coast.

The president still faces domestic political constraints, and there's little hope of the U.S. increasing its voluntary pledge in the U.N. talks of cutting emissions by 17 percent by 2020, compared to 2005 levels.

Still, just a signal that Washington has faith in the international process would go a long way, analysts said.

"The perception of many negotiators and countries is that the U.S. is not really interested in increasing action on climate change in general," said Bill Hare, senior scientist at Climate Analytics, a non-profit organization based in Berlin.

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Patty Murray likely to be a key voice in Senate on budget deal

One of the biggest winners in the sweeping Democratic victories in Senate races this month was a woman whose name appeared on no ballot: Sen. Patty Murray (D-Wash.).

With a low-key style that contrasts with some of the Senate’s camera hogs, Murray may be the most powerful senator a whole lot of people have never heard of outside of the two Washingtons where she lives and works.

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Pakistani Taliban claim blast near Shiite procession

PESHAWAR, Pakistan: The Pakistani Taliban on Saturday claimed responsibility for a bomb blast near a Shiite Muslim procession in northwest Pakistan that killed seven people.

"We carried out the attack against the Shiite community," spokesman Ehsanullah Ehsan told AFP by telephone from an undisclosed location after the explosion on the outskirts of Dera Ismail Khan in Khyber Pakhtunkhwa province.

He said the Taliban had dispatched more than 20 suicide bombers across the country for attacks against the minority community.

"We have 20-25 fidayeen (suicide bombers) in the country to launch bomb blasts and suicide attacks," Ehsan said.

"The government can make whatever security arrangements it wants but it cannot stop our attacks."

- AFP/fa

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Namdhari fired at Ponty Chadha's brother Hardeep: Police

NEW DELHI: The police on Saturday told the court that sacked Uttarakhand Minorities Commission chairman Sukhdev Singh Namdhari had fired at Ponty Chadha's brother Hardeep.

Namdhari was the main conspirator in the shootout, the police said. He has been charged with attempt to murder.

Namdhari has been sent to 5 days' police custody by the court in connection with the November 17 shootout case.

In a sudden turn of events in the Ponty-Hardeep Chadha shootout case, Sukhdev Singh Namdhari was arrested on Friday from his Bajpur home in Udham Singh Nagar district, Uttarakhand.

Namdhari carried a licensed pistol with him when the shootout occurred. He had rushed Ponty to the hospital and had also given a statement ; but after that he was not in touch with the cops.

Udham Singh Nagar SSP Anant Shanker Takwale said Namdhari, who was untraceable ever since he was sacked as chairman of Uttarakhand Minorities Commission, was arrested around 11am by a six-member team of Delhi Police.

Police said Namdhari came in contact with the Chadha brothers with the help of Uttarakhand BJP leaders such as Kashipur MLA Harbhajan Singh Cheema and Congress MLA from Kapurthala Rana Gurjeet Singh. A senior Uttarakhand IPS officer said soon after he came in contact with the Chadha brothers, he managed to become a partner in their booming real estate and stone quarrying business.

Bansal also said that of the 14 cases of heinous crimes, including murder, dacoity and kidnapping, registered against Namdhari in Uttarakhand since 1995, he had been acquitted in 12 cases while two cases are still on against him. These two cases belong to Udham Singh Nagar district.

(Inputs from PTI)

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Distant Dwarf Planet Secrets Revealed

Orbiting at the frozen edges of our solar system, the mysterious dwarf planet Makemake is finally coming out of the shadows as astronomers get their best view yet of Pluto's little sibling.

Discovered in 2005, Makemake—pronounced MAH-keh MAH-keh after a Polynesian creation god—is one of five Pluto-like objects that prompted a redefining of the term "planet" and the creation of a new group of dwarf planets in 2006. (Related: "Pluto Not a Planet, Astronomers Rule.")

Just like the slightly larger Pluto, this icy world circles our sun beyond Neptune. Researchers expected Makemake to also have a global atmosphere—but new evidence reveals that isn't the case.

Staring at a Star

An international team of astronomers was able for the first time to probe Makemake's physical characteristics using the European Southern Observatory's three most powerful telescopes in Chile. The researchers observed the change in light given off by a distant star as the dwarf planet passed in front of it. (Learn how scientists found Makemake.)

"These events are extremely difficult to predict and observe, but they are the only means of obtaining accurate knowledge of important properties of dwarf planets," said Jose Luis Ortiz, lead author of this new study and an astronomer at the Instituto de Astrofisica de Andalucia, in Spain.

It's like trying to study a coin from a distance of 30 miles (48 kilometers) or more, Ortiz added.

Ortiz and his team knew Makemake didn't have an atmosphere when light from the background star abruptly dimmed and brightened as the chilly world drifted across its face.

"The light went off very abruptly from all the sites we observed the event so this means this world cannot have a substantial and global atmosphere like that of its sibling Pluto," Ortiz said.

If Makemake had an atmosphere, light from the star would gradually decrease and increase as the dwarf planet passed in front.

Coming Into Focus

The team's new observations add much more detail to our view of Makemake—not only limiting the possibility of an atmosphere but also determining the planet's size and surface more accurately.

"We think Makemake is a sphere flattened slightly at both poles and mostly covered with very white ices—mainly of methane," said Ortiz.

"But there are also indications for some organic material at least at some places; this material is usually very red and we think in a small percentage of the surface, the terrain is quite dark," he added.

Why Makemake lacks a global atmosphere remains a big mystery, but Ortiz does have a theory. Pluto is covered in nitrogen ice. When the sun heats this volatile material, it turns straight into a gas, creating Pluto's atmosphere.

Makemake lacks nitrogen ice on its surface, so there is nothing for the sun to heat into a gas to provide an atmosphere.

The dwarf planet has less mass, and a weaker gravitational field, than Pluto, said Ortiz. This means that over eons of time, Makemake may not have been able to hang on to its nitrogen.

Methane ice will also transform into a gas when heated. But since the dwarf planet is nearly at its furthest distance from the sun, Ortiz believes that Makemake's surface methane is still frozen. (Learn about orbital planes.)

And even if the methane were to transform into a gas, any resulting atmosphere would cover, at most, only ten percent of the planet, said Ortiz.

The new results are detailed today in the journal Nature.

Read More..

'Dallas' Star Larry Hagman Dead at 81

Larry Hagman, who emerged in the 1960s as the slightly befuddled astronaut in "I Dream of Jeannie," then became a major star in the 1980s primetime soap "Dallas," playing evil oil baron J.R. Ewing, has died. He was 81.

Warner Bros."Dallas" executive producers Cynthia Cidre and Michael M. Robin, and the show's cast and crew released the following statement today: "Larry Hagman was a giant, a larger-than-life personality whose iconic performance as J.R. Ewing will endure as one of the most indelible in entertainment history. He truly loved portraying this globally recognized character, and he leaves a legacy of entertainment, generosity and grace. Everyone at Warner Bros. and in the "Dallas" family is deeply saddened by Larry's passing, and our thoughts are with his family and dear friends during this difficult time."

Hagman inherited the acting gene from his mother, Broadway musical legend Mary Martin. He'd had roles in television programs 20 years prior to "Dallas," including "I Dream of Jeannie" from 1965-70.

"Dallas," which debuted in 1978 on CBS and had an astonishing 13-year run, centered on the Ewings, a family of Texas oil barons who had money, cattle, and more scandals and power struggles than the Kardashians.

The original strategy behind "Dallas" was to focus on the newly-married Bobby and Pam Ewing. But Hagman made his role more than the producers had intended, and he quickly became the focus of the program.

AP Photo/Dr. Scott M. Lieberman

Gary Clark Jr. Performs 'Things Are Changin'' Live Watch Video

When TNT revived the program earlier this year, he was the undisputed power villain.

"All of us at TNT are deeply saddened at the news of Larry Hagman's passing. He was a wonderful human being and an extremely gifted actor," TNT officials said in a statement. "We will be forever thankful that a whole new generation of people got to know and appreciate Larry through his performance as J.R. Ewing. Our thoughts and prayers are with his family at this very difficult time.

But though he may be best known as a villain, Hagman used his fame to try to give back.

In addition to actively supporting charities like the National Kidney Foundation and, in what might seem an irony, efforts to develop solar power, Hagman just last month announced the formation The Larry Hagman Foundation, to fund education programs promoting the fine arts and creative learning opportunities for economically disadvantaged children in Dallas.

Hagman began his acting career in the late 1950s, but it wasn't until "I Dream of Jeannie" premiered in 1965 that he found himself a star. He played Anthony Nelson, an astronaut who during a mission finds an unusual bottle, and when he opens it, out pops a genie named Jeannie -- Barbara Eden.

Through the series' five-year run, Jeannie found new ways to make Hagman's life difficult, as she tried to serve her "master."

Though Hagman continued to work regularly after "I Dream of Jeannie" ended in 1970, it wasn't until "Dallas" hit the air in 1978, that he again struck a chord with audiences.

The show was originally only supposed to be a five-episode miniseries, but the show caught on so quickly, that it was extended and eventually became a series that would become the highest rated TV show of all time.

Unlike many TV stars, who find themselves playing variations on the same character over and over, the Hagman viewers saw in J.R. Ewing was worlds away from Major Nelson.

While the astronaut was always at wits end, trying to keep Jeannie a secret and trying to prove to the base psychiatrist that he was sane, Ewing was a man who seemed completely in control of his world, wheeling and dealing, backstabbing and cheating on his wife.

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Polls offer little guidance for politicians tackling ‘fiscal cliff’

Politicians tasked with negotiating a deal next month to avoid the “fiscal cliff” can be thankful that their talks are taking place immediately after a clarifying national election that laid out exactly how the public wants Washington to deal with debt and deficits.

Or not.

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ICA rescues 21 puppies found hidden in a car at Woodlands Checkpoint

SINGAPORE: A 27-year-old Singaporean has been referred to the Agri-food and Veterinary Authority (AVA) for investigations after 21 puppies were found hidden in the spare tyre compartment of his car.

In a statement, the Immigration & Checkpoints Authority (ICA) said the male driver appeared visibly nervous when his vehicle pulled up for arrival clearance at the Woodlands Checkpoint on November 20 at 11.45am.

Sensing something amiss, ICA officers lifted the cover of the spare tyre compartment and found the puppies - 14 pomeranians and 7 pugs - sedated, and lying side by side.

The puppies are currently under observation at AVA's Sembawang Animal Quarantine Station.

The ICA and AVA remind travellers against bringing live animals, birds and insects into Singapore without a proper permit.

It said animals that are smuggled into Singapore are of unknown health status. In the case of dogs and cats, the foremost concern is the risk of rabies, a fatal viral disease, which can be transmitted to human being by the bite of a rabid animal.

Anyone who imports an animal without a licence is liable on conviction to a fine not exceeding $10,000 or to imprisonment for a term not exceeding 12 months or to both.

- CNA/de

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Distant Dwarf Planet Secrets Revealed

Orbiting at the frozen edges of our solar system, the mysterious dwarf planet Makemake is finally coming out of the shadows as astronomers get their best view yet of Pluto's little sibling.

Discovered in 2005, Makemake—pronounced MAH-keh MAH-keh after a Polynesian creation god—is one of five Pluto-like objects that prompted a redefining of the term "planet" and the creation of a new group of dwarf planets in 2006. (Related: "Pluto Not a Planet, Astronomers Rule.")

Just like the slightly larger Pluto, this icy world circles our sun beyond Neptune. Researchers expected Makemake to also have a global atmosphere—but new evidence reveals that isn't the case.

Staring at a Star

An international team of astronomers was able for the first time to probe Makemake's physical characteristics using the European Southern Observatory's three most powerful telescopes in Chile. The researchers observed the change in light given off by a distant star as the dwarf planet passed in front of it. (Learn how scientists found Makemake.)

"These events are extremely difficult to predict and observe, but they are the only means of obtaining accurate knowledge of important properties of dwarf planets," said Jose Luis Ortiz, lead author of this new study and an astronomer at the Instituto de Astrofisica de Andalucia, in Spain.

It's like trying to study a coin from a distance of 30 miles (48 kilometers) or more, Ortiz added.

Ortiz and his team knew Makemake didn't have an atmosphere when light from the background star abruptly dimmed and brightened as the chilly world drifted across its face.

"The light went off very abruptly from all the sites we observed the event so this means this world cannot have a substantial and global atmosphere like that of its sibling Pluto," Ortiz said.

If Makemake had an atmosphere, light from the star would gradually decrease and increase as the dwarf planet passed in front.

Coming Into Focus

The team's new observations add much more detail to our view of Makemake—not only limiting the possibility of an atmosphere but also determining the planet's size and surface more accurately.

"We think Makemake is a sphere flattened slightly at both poles and mostly covered with very white ices—mainly of methane," said Ortiz.

"But there are also indications for some organic material at least at some places; this material is usually very red and we think in a small percentage of the surface, the terrain is quite dark," he added.

Why Makemake lacks a global atmosphere remains a big mystery, but Ortiz does have a theory. Pluto is covered in nitrogen ice. When the sun heats this volatile material, it turns straight into a gas, creating Pluto's atmosphere.

Makemake lacks nitrogen ice on its surface, so there is nothing for the sun to heat into a gas to provide an atmosphere.

The dwarf planet has less mass, and a weaker gravitational field, than Pluto, said Ortiz. This means that over eons of time, Makemake may not have been able to hang on to its nitrogen.

Methane ice will also transform into a gas when heated. But since the dwarf planet is nearly at its furthest distance from the sun, Ortiz believes that Makemake's surface methane is still frozen. (Learn about orbital planes.)

And even if the methane were to transform into a gas, any resulting atmosphere would cover, at most, only ten percent of the planet, said Ortiz.

The new results are detailed today in the journal Nature.

Read More..