Confirmed This Week: Earth Has a “Second Moon”

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About Earth’s New Little Moon

After putting in its time, an asteroid called “Asteroid 2016 HO3” has now been confirmed by NASA to be a permanent resident in the Earth’s gravitational field.

The asteroid was discovered earlier this year by University of Hawaii’s Institute for Astronomy, but it has been a “stable quasi-satellite” for almost 100 years.

Asteroid 2016 HO3 is between 120 and 300 feet in diameter (40-100 meters). The asteroid poses no threat of hitting the Earth, and will never come closer than 14 million kilometers (9 million miles) from our planet.

(For point of comparison, the average distance to the moon is less than 400,000 km.

Asteroid 2016 HO3 orbits the Earth somewhat similarly to our regular moon, but in an uneven pattern in which the rock drifts ahead of the Earth for a couple years as both orbit the sun, before the Earth’s gravity pulls the rock back and it falls behind the Earth for a few years. The relationship between the Earth and the asteroid has been likened to a dance.

Image: Paul Chodas, NASA and the Jet Propulsion Laboratory

Possible new law of nature on the way

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The world of physics is excited about strong but early evidence about the behavior of muons, paricles identical to electrons only 200x more massive (heavier), which once born take 2.2 microseconds to decay into an electron, and which spin like tops. In a new, extremely precise measurement, they were made to wobble using magnetic fields but they unexpectedly wobbled quite significantly faster than the Standard Model suggests they would. They might spin so fast due to an unknown force caused by an unknown particle, and this is what is so exciting.

“We found that a muon … is not in agreement with our current best theory of physics at the subatomic level, and … it potentially points to a future with new laws, new particles and new forces in physics which we haven’t seen to date,” said Professor Mark Lancaster at U of Manchester.

“The main goal of the experiment is to make the measurement and compare with the theory, and if they disagree then it’s telling us that there’s something in nature which is not in the theory,” explained James Mott at Fermilab.

The four known forces of nature (gravity, electricity, two nuclear forces: strong and weak interactions) have left scientists without an answer for some observed phenomena, such as the speed at which galaxies spin (faster than the best model suggests). Therefore, they continue to search for glitches in their already-tight models which might point them things they don’t yet know about.

The most recent work was done at Fermilab (Muon g-2 experiment), but a similar experiment was already done earlier at the Large Hadron Collider. These tools accelerate particles in large rings at close to the speed of light.

The evidence needs more tests for greater certainty, particularly to rule out the possibility of a systematic error, and particularly with a new, independent experiment, but physicists will be chasing this line of experiment eagerly.

“This is outstanding confirmation of experimental technique, and very, very suggestive of the possibility of new physics,” noted scientist David Hertzon of U of Washington.

By the editors

#AnomalousMagneticDipoleMomentOfTheMuon #QuantumElectrodynamics

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People in Kachin state demonstrate against China

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YANGON, Myanmar – The people in the Pharkant area of Kachin state demonstrated against China this week, drawing a cross on the Chinese flag and burning a picture of Myanmar’s military leader Min Aung Hlaing.

“China stands with the military leader,” shouted the demonstrators.

By Htay Win
Photo credit Aye Yarwaddy

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Myanmar military council arrests the artist Zarganar

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YANGON, Myanmar – The artist Zarganar was arrested by the Myanmar military council from his home in Tarmwe township, Yangon this morning.

Zarganar is not only a director but also a comedian famous for political jokes since the 1988 democratic revolution.

Zarganar was arrested by the Myanmar military many times before 2010.

By Htay Win
Photo credit Zarganar page

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Kayin IDPs struggle to get for food

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YANGON, Myanmar – Kayin internally displaced people are desperate for food, clothing and shelter, hiding in the forest from the air strikes of the Myanmar military.

The IDPs fled to neighboring Thailand, but Thai government turned them back. However, Wednesday morning the Thai government opened Maeseli jetty in Maehaungsaung district to sending rations and medicines over the border to Kayin state, according to a Thai media.

By Htay Win

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Twenty Myanmar celebrities charged with incitement

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YANGON, Myanmar -They were charged under the country’s media law with inciting government employees to join the popular civil disobedience movement (CDM) through social media.

Celebrities took part in the NLD election campaigns and are thought to have played a large part in influencing the public, particularly Myanmar’s youth, to vote for Aung San Suu Kyi.

By Htay Win
Photo credit Myanmar celebrity

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