The magnetic field of a spiral galaxy

Magnetic field of a spiral galaxy
Click for full image.

Using a variety of telescopes, especially the Jansky Very Large Array radio telescope, astronomers have successfully mapped the magnetic field lines of a spiral galaxy seen edge on and 67 million light years away.

The image to the right, cropped and reduced to post here, shows what they have found.

The magnetic field lines extend as much as 22,500 light-years beyond the galaxy’s disk. Scientists know that magnetic fields play an important role in many processes, such as star formation, within galaxies. However, it is not fully understood how such huge magnetic fields are generated and maintained. A leading explanation, called the dynamo theory, suggests that magnetic fields are generated by the motion of plasma within the galaxy’s disk. Ideas about the cause of the kinds of large vertical extensions seen in this image are more speculative, and astronomers hope that further observations and more analysis will answer some of the outstanding questions.

Our understanding of these kinds of gigantic magnetic fields is poor, to put it mildly. This data really only begins the research.

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St. Louis couple charged for defending their home from trespassers

They’re coming for you next: The Democrat prosecutor in St. Louis, circuit attorney Kim Gardner, who would eagerly ban you from owning guns and would also gladly defund the police, has issued criminal charges against the St. Louis couple for using their guns to protect their home from trespassing and threatening Antifa/BLM protesters.

The charge relates to them “flourishing” the guns while standing on their own property in order to ward off trespassers who were verbally and physically threatening them.

This is the Democratic Party today. Not only should you be denied the right to own guns, if you do own them you will not be allowed to defend your life with them. Moreover, there must not be any police available to enforce the law. These Democrats will also give carte blanche to any protesters they agree with, allowing them to trespass on your property and do what they will with you, in the name of free speech.

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SpaceX successfully launches South Korean military satellite

Falcon 9 first stage after landing

Capitalism in space: SpaceX today successfully launched a South Korean military satellite, with its Falcon 9 rocket using the same first stage that launched two American astronauts to ISS less than two months ago.

This was the company’s fastest turnaround yet of a used first stage, 51 days, which also beats the fastest turnaround ever by the shuttle program, 54 days. And as you can see by the screen capture image to the right, they successfully landed it so that it can be used for a third time.

Watching the camera on that first stage after separation (on SpaceX’s live stream) to landing was most fascinating. After separation its tail end points down to the west and its launch site in Florida. As it curves upward and then down towards its landing in the Atlantic, its small thrusters and grid fins very slowly and gracefully swing that tail to instead point east and down to the drone ship. I had not noticed previously the gentleness of that re-positioning. The daylight clear weather today, plus excellent camera access, made it very obvious.

The leaders in the 2020 launch race:

16 China
11 SpaceX
7 Russia
3 ULA
3 Japan

The U.S. now leads China in the national rankings, 18 to 16.

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Texas Republican Party ousts leader to give Allen West the job

The Texas Republican Party yesterday ousted its chairman to give former congressman and hard-nosed conservative Allen West the job.

Conservative firebrand and former Florida congressman Allen West will lead the Texas Republican Party into the 2020 election, after ousting the current chairman early Monday during a convention marred by technical difficulties. He vowed to use his post to push back against Democrats’ “progressive socialism.”

“I am sick and tired of Republicans being on their heels, being on the defense, always being reactionary with a party that as we see right now– they don’t stand up for the rule of law, they stand for rule of the mob,” he said during a victory lap on conservative media.

If anything, this decision indicates the continuing shift in the Republican Party from the milquetoast go-along-to-get-along types to those willing to fight the Democrats on all fronts. One of the reasons West lost his seat in Congress is because past Republican leadership looked at him with distaste, refusing to give him the kind of support he needed. That is now changing.

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More COVID-19 good news

A close look at the infection rate based on the increased number of tests in the past two months suggests that by election day the entire country will be close to herd immunity, and that quite possibly 40% of the population is already immune.

As of July 17, 44.2 million people have been tested, with 3.63 million positives (8.2%). Those folks who tested negative either never contracted COVID-19 or had it (with or without symptoms) and recovered.

…One eighth of the country [44.2 million] already tested is a very large sample, statistically. Applying the 8% baseline infection rate to the entire population, this means that every week after the beginning of April, another 2.67% of the people in the U.S. had recovered from COVID-19, were immune and non-contagious, and were not a threat to anybody. These numbers are additive. By July 17 (15 weeks), 40% of the country is now immune to the coronavirus, whether or not these people know it, and they cannot infect anybody else (for as long as the period of immunity lasts, likely well into the fall).

We can use the trajectory of the “hot spots” in March and April (which peaked about mid-April) to estimate the future trajectory of the percent of nationwide positive COVD-19 test results — which are now less than 2% in the former hot-spot areas — as the current set of “hot spots,” which are currently at peak, subside. I roughly estimate the following: for August, 5.4%; September, 4.0%; October, 2.1%. On the day you go to the polls to vote for either Orange Man or Senator Senex, by my estimate, 62% of the country will be immune to COVID-19, which is close to herd immunity.

And yes, there is uncertainty here, but the analysis appears reasonable, based on the number so far tested and the numbers found to test positive. It also matches what a reasonable person should expect from this respiratory disease.

Of course, because it suggests we have a lot to be optimistic about the Wuhan virus, this analysis must be dismissed immediately, out of hand. It just can’t be right. We are all gonna die from COVID-19 and that’s it.

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No TMT construction until 2021, according to its builders

According to the university consortium building the Thirty Meter Telescope (TMT), they will make no attempt to begin construction until the end of winter in 2021.

According to the official spokesman, the consortium remains committed to building the telescope in Hawaii on Mauna Kea, but I do not see how it will ever happen. The present Democratic government supports the protesters, and there is no chance that government will ever be voted out of power.

Based on this information, I do not think TMT will ever be built, anywhere.

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UAE’s Hope Mars Orbiter successfully launched

The new colonial movement: The United Arab Emirates first interplanetary probe, its Hope Mars Orbiter, was successfully launched by a Mitsubishi H-2A rocket today from Japan, and is now on its way to Mars.

It will arrive in February 2021, when it will attempt to inject itself into orbit, where it will then be used to study the Martian weather.

The leaders in the 2020 launch race:

16 China
10 SpaceX
7 Russia
3 ULA
3 Japan

The U.S. still leads China in the national rankings, 17 to 16.

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Obama misused intelligence agencies for years to spy on political opponents

We now have substantial evidence going back years — well before its illegal misuse of the FISA court — that the Obama administration and officials in its FBI and Justice Department misused National Security Agency (NSA) databases to illegally spy on its political opponents.

The article at the link is very long and detailed, but this is necessary to unpack the history that not only documents that spying before 2016, but why Justice and FBI high officials felt compelled then to use a fake dossier paid for by the Clinton campaign to get a warrant from the FISA court. Once they lost access to the NSA databases that year, they needed something that would allow them to continue that spying.

During the time-frame of December 2015 through April 2016 the NSA database was being exploited by contractors within the intelligence community doing unauthorized searches. On March 9, 2016, oversight personnel doing a review of FBI system access were alerted to thousands of unauthorized search queries of specific U.S. persons within the NSA database.

NSA Director Admiral Mike Rogers was made aware. Subsequently NSA Director Rogers initiated a full compliance review of the system to identify who was doing the searches; & what searches were being conducted. On April 18, 2016, following the preliminary audit results, Director Rogers shut down all FBI contractor access to the database after he learned FISA-702 “about”(17) and “to/from”(16) search queries were being done without authorization.

In other words, the NSA database of phonecalls between Americans, an illegal database in its own right (the Constitution forbids such indiscriminate spying on Americans without a warrant), was being used by unauthorized individuals to gain information on Americans. From the article it becomes clear that those individuals were Obama administration operatives, and the Americans they were digging dirt on were their political opponents.

When Rogers shut down access to this keyhole, it was then necessary to instigate an unjustified warrant from the FISA court to allow these same Obama officials the right to continue their spying. At the same time they also instigated an effort to get Rogers fired.

What infuriates me about this is that even now, years later, no one has been indicted for any of these clearly illegal acts, despite substantive and documented evidence. We get reports, we get leaks, we get outraged Congressman on cable networks, and we get Trump tweets ranting about how terrible it is. What we don’t get is anyone behind bars.

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British Airways retires 747 fleet

Because of the crash in customer demand due to the Wuhan virus panic, British Airways has abruptly retired its entire fleet of 747s.

This retirement had been planned, as the 747 is expensive to operate. The airline had planned however to phase them out over several years. Now they simply don’t need them, as they are flying so few passengers.

I am fortunate that I got to fly on one in 2019, in a vacation trip to Wales with Diane. This might have been the only time I ever flew on a 747, and it was a remarkably smooth flight, both during take-off and landing. It is sad to see this magnificent American achievement finally leave us.

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NASA: Dragon crew will return to Earth August 2nd

Capitalism in space: Assuming that the weather cooperates, NASA has now set August 2nd as the date the manned Dragon capsule will return to Earth with its two man crew.

Assuming good weather and a smooth final few weeks on the International Space Station, astronauts Doug Hurley and Bob Behnken are scheduled to undock from the orbiting research outpost Aug. 1 and return to Earth the next day to wrap up a 64-day test flight of SpaceX’s Crew Dragon spaceship.

NASA Administrator Jim Bridenstine confirmed the target dates for the Crew Dragon’s undocking and splashdown in a tweet Friday. A few hours after departing the space station, the Crew Dragon will fire its Draco thrusters for a braking burn and re-enter the atmosphere, targeting a parachute-assisted splashdown at sea. “Splashdown is targeted for Aug. 2,” he tweeted. “Weather will drive the actual date. Stay tuned.”

Note that the recovery operations, as has been the case with everything else on this flight, will be run entirely by SpaceX and its employees. NASA’s only real role is that of a customer and observer, though obviously agency officials are taking a hands-on part in determining the landing date.

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More polygons on Mars!

Lava polygons on Mars?
Click for full image.

Today’s cool image, rotated, cropped, and contrast-enhanced to post here, focuses on polygons found near the equator of Mars. It was taken by the high resolution camera on Mars Reconnaissance Orbiter (MRO) on May 22, 2020, and shows what the science team labels as “well-preserved polygons.”

Previously I have posted cool images showing polygons (here and here), but those images were located in the northern mid-latitudes, and were thought to have been formed in connection with some form of freeze-melt-drying water process in permafrost.

Today’s image however is likely not related to water. It is located in the equatorial regions, where little water is expected. It also has a more permanent nature, which suggests that it is the result of some sort of volcanic or tectonic process. That the polygons are depressions suggests the latter, since a volcanic process is more likely to have filled cracks and left ridges more resistant to erosion, as explained by this article.

In this case the topography suggests instead some form of spreading and cracking process that left behind these polygon-shaped cracks. In mud, such polygons are found when the mud dries, but once again, these are in a very dry region. If formed in that manner they must have formed a very very long time ago, when the climate here was very different, and were somehow preserved for eons since.

The location, as shown in the overview map below provides some context, though it really doesn’t answer any questions..
» Read more

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