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Team of Scientists Launch Campaign to Restore Pluto to Planet Club, aims to broaden the Astronomical Classifications

Six scientists from institutions across the United States argued that Pluto deserves to be a full planet, along with some 110 other bodies

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Pluto nearly fills the frame in this image from the Long Range Reconnaissance Imager (LORRI) aboard NASA’s New Horizons spacecraft, taken on July 13, 2015, when the spacecraft was 476,000 miles (768,000 kilometers) from the surface. This is the last and most detailed image sent to Earth before the spacecraft’s closest approach to Pluto on July 14. The color image has been combined with lower-resolution color information from the Ralph instrument that was acquired earlier on July 13. This view is dominated by the large, bright feature informally named the “heart,” which measures approximately 1,000 miles (1,600 kilometers) across. The heart borders darker equatorial terrains, and the mottled terrain to its east (right) are complex. However, even at this resolution, much of the heart’s interior appears remarkably featureless—possibly a sign of ongoing geologic processes. CREDIT: NASA/APL/SwRI, VOA
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US, March 22, 2017: A team of scientists seeking to restore Pluto to planethood launched a campaign on Tuesday to broaden the astronomical classifications which led to its demotion to a “dwarf planet” a decade ago.

Six scientists from institutions across the United States argued that Pluto deserves to be a full planet, along with some 110 other bodies in the solar system, including Earth’s moon.

In a paper presented at an international planetary science conference at The Woodlands, Texas, the scientists explained that geological properties, such as shape and surface features, should determine what constitutes a planet.

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In 2006, the International Astronomical Union, struggling with how to classify a newly discovered icy body beyond Pluto, adopted a definition for a planet based on characteristics that include clearing other objects from its orbital path.

Pluto and its newfound kin in the solar system’s distant Kuiper Belt region were reclassified as dwarf planets, along with Ceres, the biggest object in the asteroid belt between Mars and Jupiter. The decision left the solar system with eight planets.

But this definition sidelines the research interests of most planetary scientists, said the paper’s lead author, Kirby Runyon, a doctoral candidate at Johns Hopkins University.

Runyon said he and other planetary scientists are more interested in a planet’s physical characteristics, such as its shape and whether it has mountains, oceans and an atmosphere.

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“If you’re interested in the actual intrinsic properties of a world, then the IAU definition is worthless,” he said by phone.

Runyon and colleagues argue that the IAU does not have the authority to set the definition of a planet.

“There’s a teachable moment here for the public in terms of scientific literacy and in terms of how scientists do science,” Runyon added. “And that is not by saying, ‘Let’s agree on one thing.’ That’s not science at all.”

Runyon’s group advocates for a sub-classification system, similar to biology’s hierarchal method. This approach would categorize Earth’s moon as a type of planet.

That idea irks California Institute of Technology astronomer Mike Brown, who discovered the Kuiper Belt object that cast Pluto out of the planet club.

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“It really takes blinders to not look at the solar system and see the profound differences between the eight planets in their stately circular orbits and then the millions and millions of tiny bodies flitting in and out between the planets and being tossed around by them,” he wrote in an email. (VOA)

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Refugees’ Entitled To Claim The Right To Asylum in The U.S: U.N.

We believe governments have the right to defend their borders and should do so responsibly.

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Refugees, Migrants, Asylum seekers, Trump
Honduran migrant Genesis Belen Mejia Flores, 7, waves an American flag at U.S. border control helicopters flying overhead near the Benito Juarez Sports Center serving as a temporary shelter for Central American migrants, in Tijuana, Mexico. VOA

Asylum seekers at the Mexican border fleeing violence or persecution are entitled to lodge claims in the United States to obtain sanctuary there, U.N.
agencies said in a fresh attempt to shield migrants from tough U.S. immigration policies.

U.N. officials have repeatedly urged Washington to ensure asylum seekers are protected, but U.S. President Donald Trump said Monday that Mexico should send migrants seeking asylum in the United States back to their home countries.

U.S. authorities fired tear gas canisters toward migrants in Mexico — near the border crossing separating Tijuana from San Diego, Calif. — on Sunday when some rushed through border fencing into the United States. Mexico’s foreign ministry presented a diplomatic note to the U.S. government on Monday calling for a “full investigation.”

Refugees, Migrants, Asylum seekers
Men line up for dinner outside a shelter housing members of the migrant caravan, in Tijuana, Mexico. VOA

After Trump signed an order limiting asylum rights earlier this month, the U.N. High Commissioner for Refugees said the United States must make sure anyone fleeing violence or persecution can get protection “without obstruction.”

UNHCR spokesman Babar Baloch, asked on Tuesday about U.S. forces firing tear gas at migrants, told a Geneva news briefing: “We are following those reports with concern. We are still trying to understand what transpired there.”

Border management is “a sovereign prerogative of national governments,” but border security and international protection for refugees are not mutually exclusive, he said.

Rohingya, myanmar, violence,asylum
Rohingya refugee children shout slogans during a protest against the repatriation process at Unchiprang refugee camp near Cox’s Bazar, in Bangladesh. VOA

“It means that any person whose life is at risk in their country of origin must be able to access territory and request asylum in a safe country. And each asylum request should be considered individually.

“We have been repeating our call on the U.S. authorities to grant access to the territory and to asylum procedure to those who are fleeing persecution and violence,” he said.

Sunday’s incident was the latest chapter in a saga that has pitted Trump’s hard-line immigration policies against thousands of migrants who have made their way north through Mexico from violent and impoverished Central American countries.

Rohingya, myanmar, violence,asylum
Rohingya refugees walk under rain clouds on June 26, 2018, in Jamtoli refugee camp in Bangladesh. VOA

About 3,500 migrants from the caravans have applied for asylum in Mexico, Baloch said. Seven migrants have died in incidents along the way, Joel Millman of the International Organization for Migration said.

Also Read: Refugee Communities Can Be Built By Tech Industries

“We believe governments have the right to defend their borders and should do so responsibly,” he said. “We also think migrants certainly should have the expectation that there be an access that is legal and safe for them to at least seek to cross
a border.” (VOA)