Tag: China

Has Yutu-2 found something unusual?

9:08 am

According to Chinese sources, China’s lunar rover Yutu-2 has spotted something unexpected and unusual on the surface of the far side of the Moon.

On July 28, the Chang’e-4 team was preparing to power Yutu-2 down for its usual midday ‘nap’ to protect the rover from high temperatures and radiation from the sun high in the sky. A team member checking images from the rover’s main camera spotted a small crater that seemed to contain material with a color and luster unlike that of the surrounding lunar surface.

The drive team, excited by the discovery, called in their lunar scientists. Together, the teams decided to postpone Yutu-2’s plans to continue west and instead ordered the rover to check out the strange material. With the help of obstacle-avoidance cameras, Yutu-2 carefully approached the crater and then targeted the unusually colored material and its surroundings. The rover examined both areas with its Visible and Near-Infrared Spectrometer (VNIS), which detects light that is scattered or reflected off materials to reveal their makeup.

VNIS is the same instrument that detected tantalizing evidence of material originating from the lunar mantle in the regolith of Von Kármán crater, a discovery Chinese scientists announced in May.

So far, mission scientists haven’t offered any indication as to the nature of the colored substance and have said only that it is “gel-like” and has an “unusual color.” One possible explanation, outside researchers suggested, is that the substance is melt glass created from meteorites striking the surface of the moon.

The report is at present too vague to really tell us anything. What I predict is that this discovery will almost certainly not be as strange or alien as this report makes it sound.

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China launches two smallsats

8:25 am

Using its Kuaizhou-1A solid rocket, China’s pseudo-private company ExSpace launched two smallsats into orbit yesterday.

This rocket, using technology developed for the military, including a mobile launch platform, is designed to compete directly with Rocket Lab and the other western private smallsat rockets trying to come on line right now. Its development appears to have been wholly funded by the Chinese government, which revealed after the launch that they plan between 8 and 9 more launches before the end of the year.

The leaders in the 2019 launch race:

14 Russia
14 China
10 SpaceX
6 Europe (Arianespace)
4 India
4 Rocket Lab
4 ULA

The U.S. continues to lead 19-14 in the national rankings.

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Hong Kong arrests three prominent protest leaders

1:05 pm

In a sign that China has no intention of compromising with the protesters in Hong Kong, authorities there today arrested three of the most high-profile leaders of the protest movement.

Two were active in protests in 2014.

Joshua Wong and Agnes Chow, who rose to eminence as the student leaders of pro-democracy demonstrations in 2014, were detained Friday, ahead of what is expected to be a tense weekend in the city. Authorities banned a march planned for Saturday, and warned they would use force and possibly arrest those who defy the order.

Police said Wong and Chow face charges of participating in an unauthorized assembly and inciting others to participate in an unapproved assembly, while Wong faces an additional charge of organizing an unapproved assembly, in relation to a June 21 protest at police headquarters. Both were released on bail Friday. …

The sweep came ahead of a sensitive political anniversary in the semiautonomous Chinese territory. This Saturday marks five years since Beijing announced an electoral-reform plan that denied Hong Kong free elections — a decision that triggered 79 days of pro-democracy protests.

More here, including information about other arrests in addition to the three above.

I’m not sure China’s actions here are going to prevent demonstrations tomorrow. For example,

The bespectacled Wong, who was 17 when he became the face of the student-led civil disobedience movement in 2014 that blocked major roads for 79 days, has not been a prominent figure in the latest protests, which have no identifiable leaders.

The same thing applies to the others who were arrested. There doesn’t appear to be anyone in particular running these protests, which means arresting a few scapegoats and banning further demonstrations will probably not work. We shall find out this weekend.

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China’s FAST radio telescope discovers 93 new pulsars

9:53 am

The research team running China’s FAST radio telescope, the largest single dish such telescope in the world, have announced that they have discovered 93 new pulsars since October 2017.

China might still be having trouble finding a big name astronomer to run the telescope, but in the meantime it looks like their own people are taking advantage of the situation to use the telescope establish their own names.

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Hong Kong police fire water cannons, gunshot, against protesters

10:32 am

The first gunshot and use of water cannons by Hong Kong police occurred today against protests opposed to increased Chinese rule over that former British colony.

Earlier Sunday, after thousands of people marched peacefully in pouring rain, a group of hardcore protesters erected makeshift roadblocks and threw bricks and Molotov cocktails at riot police. After firing tear gas in an attempt to dispers the crowds, police drove water cannon vehicles onto the streets for the first time during the protests, unfurling signs warning demonstrators they would deploy the jets if they did not leave. The jets were later fired down from the moving trucks down a road towards a crowd of protesters who ran away.

There were no immediate reports of injuries.

There is also no additional information about the gunshot, though it appears it caused no injuries.

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China successfully tests navigation in space using pulsars

9:41 am

Using the X-ray space telescope Insight it launched in 2017, China has successfully tested an autonomous navigation system using pulsars.

The time interval of two adjacent pulses emitted by the pulsar is constant. If a spacecraft moves toward the pulsar, the received pulse interval will be shortened, and vise versa. Thus the observed pulse profile will change as the spacecraft moves in space. The relative arrival times of pulses also indicate the relative position of the spacecraft with respect to the pulsar. Therefore, by analyzing the characteristics of the pulsar signals received by the spacecraft, the three-dimensional position and velocity of the spacecraft can be determined, Zheng explained.

From Aug. 31 to Sept. 5, 2017, Insight observed the Crab pulsar for about five days to test the feasibility of pulsar navigation. The research team had also proposed an algorithm for X-ray pulsar navigation, according to Zhang Shuangnan, lead scientist of the Insight space telescope.

The research team further improved the algorithm and applied it in the processing of the observation data of the three detectors onboard Insight. The satellite’s orbit was determined successfully, with the positioning accuracy within 10 km, comparable to that of a similar experiment conducted on the International Space Station, Zhang said.

This is not the first such test. U.S. scientists did something similar using an X-ray telescope on ISS in 2017.

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Rocket Lab & China launch satellites

8:49 am

Both Rocket Lab and China today launched rockets to put satellites into orbit, though it is as yet still unclear whether the Chinese launch was successful.

Rocket Lab successfully placed four smallsats into orbit. It was the company’s eightth consecutive successful launch, continuing its perfect launch record.

More important, the company now has completed four launches in 2019. Their goal, announced early this year, was to achieve a monthly pace by summer, then ramp up to twice a month by the end of the year. So far they are not quite meeting that goal, averaging one launch every 1.5 months (March, May, June, August). Still, this record is quite impressive, considering they are a very new and very small private company that it now is beginning to match or exceed the launch pace of other nations (India) as well as well-established companies (ULA).

China’s Long March 3B launched a civilian communications satellite, but according to the story at the link, “the usual announcement of a successful separation has yet to published by Chinese State media.” For the purposes of the launch standings, I will assume at the moment that this was a successful launch, but will revise this post should we learn the satellite did not reach orbit. Update: It appears the launch was successful, but the satellite is having problems. This would mean the launch counts below.

The leaders in the 2019 launch race:

13 China
12 Russia
10 SpaceX
6 Europe (Arianespace)
4 India
4 Rocket Lab

The U.S. now leads China 18 to 13 in the national rankings.

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1.7 million protest China in Hong Kong

11:07 pm

A gigantic protest — estimated to be 1.7 million people strong — against China’s effort to limit freedoms in Hong Kong filled that city’s streets today, despite pouring rain and in defiance of police orders.

Sunday’s action, billed as a return to the peaceful origins of the leaderless protest movement, drew more than 1.7 million people, making it one of the largest rallies since the protests began about three months ago, according to organisers the Civil Human Rights Front.

It ended a weekend of protests that, as of early Monday, saw no major confrontations with police for the first time in weeks.

Hong Kong has always been China’s equivalent of West Berlin in East Germany, a leak in the monolith communist state that in the long run can only make that communist state unsustainable. Khrushchev temporarily solved this problem (for about forty years) by building a wall around West Berlin that blocked East Germans from entering it. Khrushchev’s act eventually failed, and when it did it took down the Soviet Union.

What will China do? In 1989 the Chinese communists shut down all opposition, far more brutally than Khrushchev, killing thousands in Tiananmen Square. Can the do the same now in Hong Kong?

At the moment this is very unclear.

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China launches three satellites on new rocket

9:21 am

China today successfully completed the first orbital launch of its privately-funded but government-built smallsat Smart Dragon rocket, putting three smallsats into orbit.

From the Chinese state press:

The rocket, developed by the China Rocket Co. Ltd. affiliated to the China Academy of Launch Vehicle Technology (CALVT), blasted off from the Jiuquan Satellite Launch Center in northwest China at 12:11 p.m. (Beijing Time).

The three satellites, respectively developed by three Beijing-based companies, will be used for remote sensing services, communication and Internet of Things.

Different from the carrier rockets of the Long March family, the new Dragon series is developed in a commercial mode to meet the market demand of launching small commercial satellites, said Wang Xiaojun, head of CALVT.

What they mean by “a commercial mode” is that the funding comes from private Chinese investors who hope to make money from the rocket’s launches. However, this is not a private operation by any means, since the rocket is owned and built by a government entity and uses military solid motors.

From an American perspective, this Chinese attempt to create a commercial launch industry using private funds but tight government supervision and control is very puzzling. This government company is now competing directly with other Chinese launch companies that are, at least superficially, owned and run by private corporations (though also supervised closely by the government). How the Chinese government prevents its government agencies from putting their thumbs on the scale to favor one over the other I do not understand.

The leaders in the 2019 launch race:

12 Russia
12 China
10 SpaceX
6 Europe (Arianespace)
4 India

The U.S leads 17 to 12 over Russia and China in the national rankings.

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Hong Kong airport reopens as protesters retreat

10:18 am

It appears the actions by Chinese riot police yesterday has caused the airport protesters in Hong Kong to back off and allow the airport to reopen.

Most of the protesters left the airport Tuesday after riot police tried to enter the terminal, fighting with demonstrators who barricaded entrances with luggage carts. The brief clash led to several injuries.

The violence included protesters beating up at least two men they suspected of being undercover Chinese agents. Airport security appeared unable to control the crowd, and paramedics later took both men away. Police have acknowledged using “decoy” officers, and some protesters over the weekend were seen being arrested by men dressed like demonstrators — in black and wearing face masks.

Hu Xijin, editor-in-chief of the Global Times, identified one of the men as a journalist at the nationalistic Chinese tabloid. “Fu Guohao, reporter of GT website is being seized by demonstrators at HK airport,” Hu wrote on his Twitter account. “I affirm this man being tied in this video is the reporter himself. He has no other task except for reporting.”

The protesters apologized that some of them had become “easily agitated and overreacted.” On posters, the demonstrators said they have been “riddled with paranoia and rage” after discovering undercover police officers in their ranks.

Meanwhile the article describes other clashes elsewhere in Hong Kong. The conflict in Hong Kong does not appear to be over, by any means.

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