Month: January 2017

Atomic clocks on 9 of 72 European GPS satellites have failed

10:50 pm

The atomic clocks on 9 of the 72 European Galileo GPS satellites, designed to compete with the American, Russian, and Chinese GPS satellites, have failed.

No satellite has been declared “out” as a result of the glitch. “However, we are not blind… If this failure has some systematic reason we have to be careful” not to place more flawed clocks in space, [ESA director general Jan Woerner] said.

Each Galileo satellite has four ultra-accurate atomic timekeepers — two that use rubidium and two hydrogen maser. Three rubidium and six hydrogen maser clocks are not working, with one satellite sporting two failed timekeepers. Each orbiter needs just one working clock for the satnav to work — the rest are spares.

The question now, Woerner said, is “should we postpone the next launch until we find the root cause?”

That they are even considering further launches with so many failures of the same units seems absurd. They have a systemic problem, and should fix it before risking further launches.

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Mars rover update: January 18, 2017

3:37 pm

Curiosity

Curiosity's location, Sol 1582

For the overall context of Curiosity’s travels, see Pinpointing Curiosity’s location in Gale Crater.

In the past month, since my last rover update on December 22, 2016, Curiosity has begun moving again, carefully picking its way through the dune-filled flats in the foothills at the base of Mount Sharp. The route taken, shown on the image on the right, corresponds to the easternmost of the possible routes I noted in my November 14, 2016 update. This route is also the most direct route, which I think is smart considering that the rover’s life on Mars certainly uncertain and the higher they can climb the more geological information they will get.

I have also annotated the likely route into the near future, including a possible side trip to the base of the mesa up ahead. It appears to me that they are now a little more than halfway through the flats, with Mt. Sharp directly ahead, as shown by the panorama below, taken near the end of December. The goal is a canyon just out of view to the right of this panorama.

Looking at Mount Sharp

The flats the rover is presently traversing, and visible in the foreground of the panorama above, is strewn with dark sand that often piled into large sand dunes. Where the ground is exposed, it is made up of a scattering of pavement-like rocks. As noted in a press release yesterday, many of these flat rocks have polygonal cracks and boxwork similar to that seen in dried mud here on Earth, suggesting that this area was once wet and then dried. This geology helps confirm the theory of planetary scientists that Gale Crater was once filled with water that slowly evaporated away. As the rover climbs, it leaves the lakebed and begins to move through the lake’s various shores, each one older than the last.

Opportunity

For the overall context of Opportunity’s travels at Endeavour Crater, see Opportunity’s future travels on Mars.
» Read more

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18 Jewish organizations hit with second wave of bomb threats today

2:19 pm

For the second time in two weeks a large number of Jewish institutions throughout the United States were hit with bomb threats today.

It seems to me that this is a form of anti-Semitic harassment. It also looks like the preliminaries to a real bomb attack. Make enough false bomb threats and people will start to not take them serious. That’s when you do it for real, without the warning.

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Akatsuki discovers a giant wave in Venus’ upper atmosphere

9:18 am

The Japanese Venus probe Akatsuki has discovered a giant persistent wave in the planet’s upper atmosphere that almost spans its entire face.

This week, researchers from Japan Aerospace Exploration Agency (JAXA) published infrared and ultraviolet images of Venus, taken by their Akatsuki orbiter between December 7 and 11, 2015, in Nature Geoscience. Akatsuki’s pictures reveal a curved region roughly 6000 miles long (Venus’ entire diameter is just around 7,500 miles) with a higher temperature than the surrounding atmosphere. How did the curved “smile” fight those high winds to remain in place for all four days of observation?

The answer may lie in a phenomenon very familiar to Earthlings. Gravity waves, not to be confused with gravitational waves, form when gravity pushes and pulls at the seam between two different materials. Waves on the ocean are perhaps the most obvious example—they exist where the sea meets the sky. But gravity waves also show up in the air, where wind flows over mountains to form waves that undulate upward through different layers of the atmosphere.

The mystery here is that scientists do not have a mountain chain that could have caused this giant Venusian wave. Moreover, it was there in 2015 but they haven’t seen it since.

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Cause of vision problems in space pinpointed?

9:12 am

New research suggests that scientists have pinpointed the cause of the vision problems astronauts experience from long term weightlessness.

The new research showed that intracranial pressure in zero-gravity conditions, such as exists in space, is higher than when people are standing or sitting on Earth, but lower than when people are sleeping on Earth. The researcher’s finding suggests that the constancy of pressure on the back of the eye causes the vision problems astronauts experience over time.

More important, the research has also suggested a possible cure.

“The information from these studies is already leading to novel partnerships with companies to develop tools to simulate the upright posture in space while astronauts sleep, thereby normalizing the circadian variability in intracranial pressure, and hopefully eliminating the remodeling behind the eye,” said Dr. Levine, who holds the Distinguished Professorship in Exercise Sciences.

The researchers have continued studying whether it is possible to lower intracranial pressure by means of a vacuum device that pulls blood away from the head. They previously showed that a negative pressure box that snuggly fits the lower body can lower intracranial pressure when applied for 20-minute periods. They will soon be testing the effect of the lower body negative pressure device on eye remodeling when negative pressure is applied for eight-hour periods. “Astronauts are basically supine the entire time they are in space. The idea is that the astronauts would wear negative pressure clothing or a negative pressure device while they sleep, creating lower intracranial pressure for part of each 24 hours,” said first author Dr. Justin Lawley, Instructor in Internal Medicine at UT Southwestern and a researcher at the IEEM.

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ELT construction moves forward

9:06 am

The European Southern Observatory (ESO) today signed contracts for the construction of the mirrors and sensor for its Extremely Large Telescope (ELT).

At a ceremony today at ESO’s Headquarters four contracts were signed for major components of the Extremely Large Telescope (ELT) that ESO is building. These were for: the casting of the telescope’s giant secondary and tertiary mirrors, awarded to SCHOTT; the supply of mirror cells to support these two mirrors, awarded to the SENER Group; and the supply of the edge sensors that form a vital part of the ELT’s huge segmented primary mirror control system, awarded to the FAMES consortium. The secondary mirror will be largest ever employed on a telescope and the largest convex mirror ever produced.

The construction of the 39-metre ELT, the largest optical/near-infrared telescope in the world, is moving forward. The giant telescope employs a complex five-mirror optical system that has never been used before and requires optical and mechanical elements that stretch modern technology to its limits.

Meanwhile it remains unclear when and where the Thirty Meter Telescope (TMT) will be built.

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SpaceX prepares used 1st stage for February launch

9:02 am

The competition heats up: Even as SpaceX moves forward on an intense launch schedule, with launches planned for January 26 and February 8, it has begun preparations for a late February commercial launch that will be the first to reuse a first stage.

The first stage assigned to SES 10’s launch first flew April 8, 2016, with a Dragon supply ship on a logistics launch to the International Space Station. After detaching from the Falcon 9’s second stage, which continued into orbit, the 15-story first stage booster descended to a vertical landing on SpaceX’s offshore platform a few minutes after liftoff, making the first time the company recovered a rocket intact at sea.

The landing on SpaceX’s barge, or drone ship, last April came four months after the first-ever touchdown of a Falcon 9 first stage on land at Cape Canaveral. That vehicle is now on display outside SpaceX’s headquarters in Hawthorne, California.

This pace is calling for a launch every two weeks. It will spectacular if SpaceX can keep that up, but such a pace is not really unprecedented. The Soviets at their height managed it at times quite successfully.

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Boeing obtains available seats on Soyuz as result of Sea Launch settlement

10:57 pm

As part of Boeing’s settlement with Russia over the break-up of their Sea Launch partnership, the company has obtained rights to several manned Soyuz seats that are available because the Russians have cut back on the number of astronauts they are flying to ISS.

In turn, Boeing is offering these seats to NASA.

[John Elbon, vice president and general manager of space exploration at Boeing] said he expects NASA to make enter into negotiations with Boeing about the 2017 and 2018 seats shortly after a Jan. 27 deadline for companies to respond to the sources sought statement, a requirement when a government agency proposes a sole-source procurement. “Assuming that goes well, I think we would sit down and, in relatively short order, negotiate the details of this kind of arrangement,” he said.

He didn’t specify how much Boeing was proposing to charge NASA for the seats. The agency announced an agreement with Roscosmos in August 2015 for six Soyuz seats in 2018 at a total cost of $490 million, or $81.7 million per seat. “It’s a good value for NASA and the taxpayer,” Elbon said of Boeing’s proposed deal with NASA. “We wouldn’t ask them to pay more than they would have been paying before.”

What is happening here is that Boeing is trying to use these Soyuz seats as a way to recoup its losses from Sea Launch. The problem is that NASA doesn’t really need the manned flights in 2017 and 2018. They might need them in 2019, should the manned capsules that SpaceX and Boeing are building get delayed, but I am not sure that this deal will allow them to be used at that time.

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Curiosity spots cracks formed from drying mud

5:27 pm

mud cracks on Mars?

As Curiosity moves across the dust-shrewn dune-filled flats at the base of Mt. Sharp it has recently taken images of surface rocks that have cracks resembling those found from drying mud.

Scientists used NASA’s Curiosity Mars rover in recent weeks to examine slabs of rock cross-hatched with shallow ridges that likely originated as cracks in drying mud. “Mud cracks are the most likely scenario here,” said Curiosity science team member Nathan Stein. He is a graduate student at Caltech in Pasadena, California, who led the investigation of a site called “Old Soaker,” on lower Mount Sharp, Mars.

If this interpretation holds up, these would be the first mud cracks — technically called desiccation cracks — confirmed by the Curiosity mission. They would be evidence that the ancient era when these sediments were deposited included some drying after wetter conditions. Curiosity has found evidence of ancient lakes in older, lower-lying rock layers and also in younger mudstone that is above Old Soaker.

The rover is no longer on the floor the crater, but in the foothills at the base of Mt. Sharp. Thus, what we are likely looking at is evidence of the slow disappearance of the giant lake that scientists think once filled Gale Crater. These mud cracks suggest that the rover is now moving up out of the lake and through its margins.

I plan to do a rover update for both Curiosity and Opportunity tomorrow, so stay tuned.

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Second video released of planned violent protests at inauguration

2:54 pm

Project Veritas has released its second video of planning meetings by violent leftwing protest groups as they prepare for shutting down the Trump inaugural, including blocking roads, causing the DC metro to close, and physically attacking Trump supporters.

The video is embedded below the fold. At the moment we have no word on what the CIA, FBI, and DC police plan to do about this.
» Read more

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Some background on leftist terrorist Colin Dunn

10:46 am

A friend emailed me this story, describing how Colin Dunn, one of the three leftists who were videotaped planning violence during Trump inauguration events, was previously arrested interfering with firefighters as they fought a fire in West Virginia.

Two people claiming to be volunteer firefighters from Maryland have been arrested, charged by West Virginia State Police with obstruction for taking an emergency vehicle and driving it into the tunnel. According to news reports, 30-year-old Colin Dunn and 30-year-old Virginia Price of Maine came southbound through the East River Mountain Tunnel in their own vehicle as the fire was being fought on the northbound side. When they reached the Virginia side, police claim the couple put on gear and took a county emergency vehicle.

Samantha Perry, Bluefield Daily Telegraph: “They ran into the tunnel, in their infinite wisdom,” (West Virginia State Police Sgt. D.W.) Miller said. “They said they were attempting to help their friends — they are volunteer firemen in Maryland. We explained to them they were not in Maryland, and did not have friends in the tunnel. They had no authority to do that here, basically.”

Dunn is obviously a dangerous person who thinks he has the right to grind his boot into the face of anyone he dislikes or opposes.

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Big money offered to protest Trump

10:05 am

Advertisements in two dozen cities offered protesters a $2,500 monthly retainer plus $50 per hour to be professional protesters against Donald Trump.

Demand Protest, a San Francisco company that bills itself as the “largest private grassroots support organization in the United States,” posted identical ads Jan. 12 in multiple cities on Backpage.com seeking “operatives.”

“Get paid fighting against Trump!” says the ad. “We pay people already politically motivated to fight for the things they believe. You were going to take action anyways, why not do so with us!” the ad continues. “We are currently seeking operatives to help send a strong message at upcoming inauguration protests.” The job offers a monthly retainer of $2,500 plus “our standard per-event pay of $50/hr, as long as you participate in at least 6 events a year,” as well as health, vision and dental insurance for full-time operatives.

Though the article does not say where the money is coming from, it really doesn’t matter. It proves that the protests we will see are generally fake, and not expressing a real undercurrent of protest. Congressional Republicans and Trump should thus ignore them.

The

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Inaugural event organizer to bring charges against leftists for their terrorism threats

11:31 pm

Pushback: The organizer of the inaugural ball event that leftist groups were filmed planning a terrorist attack against announced tonight that they are filing charges.

They made a real big mistake,” [organizer Mike] Cernovich said about the ‘Disrupt J-20’ organizers. “When you’re threatened with terrorism, and you have people saying they’re going to commit terrorism at a party you’re hosting, you have to take that quite seriously.”

“They seem to think it is just a prank, and I would refer them to the Dept. of Justice’s website — This is actually a felony,” he continued. “This isn’t funny at all. It is terrorism… We have filed a criminal complaint against the conspirators, and the FBI is investigating that right now. Tomorrow we will be filing a civil action against them also. Against the domestic terrorists who purchased tickets… This is a criminal conspiracy to commit terrorism, and we are treating it like the serious criminal conspiracy that it is.”

Cernovich also notes that the three leftists caught on camera had already bought tickets to his event, so he can document that they planned to come. The video proves they planned an attack. Combined, this evidence exposes them and makes them very vulnerable to both criminal charges and civil suits.

For too many decades the left has been allowed to get away with these kinds of illegal and sometimes violent behavior. It is time they learned that they can’t do that any longer.

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Head of ethics office Obama supporter

11:19 pm

Surprise, surprise! The head of the Government Ethics Office that the Republicans tried to defang two weeks ago donated money to Obama.

It appears by his actions since the Republicans were forced to back off that their concerns were completely justified. He has since tried to help the Democrats by pushing to have hearings for Trump’s nominees slowed. In addition, he has been harshly attacking Trump’s plans to separate himself from his businesses, in great contrast to his strong support of Clinton when ethics questions were raised about her paid speeches to foreign governments.

There is more at the link. It is quite clear that the Republicans in the House knew this guy was a Democratic plant, and wanted to get him out. They just handled it badly, and are still stuck with him. Fortunately, it appears that they are not only mostly ignoring him, his documented biases are now working against him. Expect them to act to shut this ethics office down not too far into the future.

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Video of leftists planning terrorist acts during Inauguration events

4:07 pm

Fascists: A new video from James O’Keefe’s Project Veritas, the first of a series, shows the leaders of a variety of leftwing organizations planning terrorist acts during the inauguration and related events.

I have embedded the video below the fold. It is very damning, and definitely involves the planning of illegal acts of violence. Worse, this is only part 1.

I wonder if the DC authorities will do anything about this.
» Read more

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Gene Cernan, 82, has passed away

3:27 pm

Gene Cernan, the last Apollo astronaut to walk on the Moon, passed away today.

His words as he stepped off the lunar surface still resonate to me.

This is Gene, and I’m on the surface; and, as I take man’s last step from the surface, back home for some time to come – but we believe not too long into the future – I’d like to just (say) what I believe history will record: that America’s challenge of today has forged man’s destiny of tomorrow. And, as we leave the Moon at Taurus–Littrow, we leave as we came and, God willing, as we shall return, with peace and hope for all mankind. Godspeed the crew of Apollo 17.

At the time, I firmly believed that we would return relatively soon. It has now been almost a half century, and no human since has left Earth orbit.

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Preparing to dive into Saturn’s rings

9:35 am

Saturn from above

Cool image time! The photo at the right, reduced to show here, was taken by Cassini on October 28, 2016 as it was shifting its orbit to prepare for the spacecraft’s last year at Saturn, where it will make repeated dives down past and even inside the gas giant’s rings. As they note at the link,

No Earth-based telescope could ever capture a view quite like this. Earth-based views can only show Saturn’s daylit side, from within about 25 degrees of Saturn’s equatorial plane. A spacecraft in orbit, like Cassini, can capture stunning scenes that would be impossible from our home planet.

It is interesting to compare this image with this July image. Comparing the two provides a sense of Cassini’s travels.

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Private Chinese rocket company gets launch contract

8:47 am

The competition heats up: A private Chinese rocket company, Landspace, has signed a launch contract with a Danish firm to launch an unstated number of satellites.

The article does not provide much information, but from it I suspect this is a smallsat operation, similar to Rocket Lab and Vector Space Systems. I also think that its private nature in China and the timing of its announcement, only a few weeks after China released its five year space plan which seemed to lend support to the development of a private space industry, provides confirmation of that support.

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“We have waited for you for a very long time.”

10:43 pm

Link here.

Who said this, and why they said it, puts the lie to every left wing anti-American cliche expressed for the past half century. The people who know what oppression is, and where it comes from, also know who has consistently defended their freedom the most, in the past.

My only fear is whether the United States that these Eastern European nations remember and love still exists. I am sadly no longer sure.

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Japan’s SS-520 launch a failure

10:27 pm

Japan’s attempt to launch a payload into orbit with the smallest rocket ever ended in failure today.

[A]ccording to the Japan Aerospace Exploration Agency (JAXA), communication systems malfunctioned after the rocket launched, causing the ignition of the second booster to be terminated. The rocket fell into the sea southeast of Uchinoura.

My impression of Japan’s space effort in recent years is somewhat comparable to that of Russia’s: Significant quality control issues that cause too many failures. This is just one more example.

I must also note that the rocket was not a private effort, but a demo project of Japan’s government space agency, JAXA, designed to show off new technology but funded through coercive government funds, not monies provided voluntarily by customers. Thus, the pressure to succeed was much less, as no one’s job or business was at risk should it fail.

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Pakistan test fires a submarine-launched cruise missile

8:19 am

Does this make you feel safer? Pakistan last week successfully tested a submarine-launched cruise missile with a range of 300 miles and capable of carrying nuclear warheads.

The article provides a lot of detail not only on Pakistan’s capabilities but of India’s as well.

Although still a far cry from India’s 6,000 ton displacement Arihant class nuclear ballistic missile submarines (one is service and three others planned) and the short-range K-15 or medium-range K-4 ballistic missiles they carry, Pakistan’s nuclear armed Agosta class boats at least get the country in the second strike game, but in a very minimal way.

The Indian Navy’s anti-submarine capability is credible, and their submarine fleet includes multiple diesel-electric submarines of different origin, as wells a Russian Akula II class nuclear fast attack boat. So keeping an eye on Pakistan’s tiny Agosta 90B fleet will be possible, although it is not clear what level of confidence the Indian Navy has that they can always keep the boats in their own submarines’ crosshairs. Not just that, but even attempting to do so will tie up valuable assets that could better be assigned to deterring other regional nuclear powers, like China.

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