The interior of Ceres

Using data from Dawn, scientists have created their first rough map of the internal structure of Ceres.

The data indicate that Ceres is “differentiated,” which means that it has compositionally distinct layers at different depths, with the densest layer at the core. Scientists also have found that, as they suspected, Ceres is much less dense than Earth, the moon, giant asteroid Vesta (Dawn’s previous target) and other rocky bodies in our solar system. Additionally, Ceres has long been suspected to contain low-density materials such as water ice, which the study shows separated from the rocky material and rose to the outer layer along with other light materials. “We have found that the divisions between different layers are less pronounced inside Ceres than the moon and other planets in our solar system,” Park said. “Earth, with its metallic crust, semi-fluid mantle and outer crust, has a more clearly defined structure than Ceres,” Park said.

Scientists also found that high-elevation areas on Ceres displace mass in the interior. This is analogous to how a boat floats on water: the amount of displaced water depends on the mass of the boat. Similarly, scientists conclude that Ceres’ weak mantle can be pushed aside by the mass of mountains and other high topography in the outermost layer as though the high-elevation areas “float” on the material below. This phenomenon has been observed on other planets, including Earth, but this study is the first to confirm it at Ceres.

In other words, Ceres behaves more like a semi-hardened blob of jello than a rock.

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3rd largest insurer begins retreat from Obamacare

Finding out what’s in it: Aetna, the nation’s third largest health insurer and faced with $300 million in loses, has decided against expanding its participation in the Obamacare exchanges.

They also announced that they are re-evaluating their entire participation in the remaining exchanges.

In related news, Obamacare rates are likely to go up from 23% to 45% in Illinois, and 17.3% in Michigan.

But don’t worry, we’ve got the situation covered. We’re going to vote for Hillary Clinton and Democrats, the people that gave us this failed law. They’ll surely fix it!

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Genesis cover

On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.

 

The print edition can be purchased at Amazon or any other book seller. If you want an autographed copy the price is $60 for the hardback and $45 for the paperback, plus $8 shipping for each. Go here for purchasing details. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, free with a 30-day trial membership to Audible.
 

"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News

“News Media Now Giving Trump the ‘Full Palin.’”

Working for the Democratic Party: The expected full-media assault on the Republican Party candidate has begun. As the author at the link notes,

There have been few conservatives who have been more critical of Trump since the start of this insane campaign than me, and he deserves every bit of condemnation he has gotten for needlessly mishandling the Khan situation. However, there is also no doubt that the media became obsessed with the story because they want Trump to lose, got a bit freaked out about his very temporary convention bounce, and smelled blood.

Hillary, while she is less likely to be stupid enough to so publicly take on the parents of a fallen war hero, would also never have been lured by the media into the conflict to the extent Trump was. If she had somehow stepped in it, the news media would have let it go far sooner than they did for Trump (for instance, how many voters are even aware of the controversy over her basically calling some family members of Benghazi victims liars?).

This story has seemed to open the floodgates now on Trump in much the same way that the infamous Katie Couric interview did with regards to Sarah Palin in 2008. Now, everything Trump says seems to be instant fodder for the media’s intensified “gaffe watch.”

It is very important to recognize one more additional fact: Any Republican candidate would have been treated this way by the now openly partisan and decidedly bankrupt mainstream media. The question now is whether the low-information public has finally become aware of this game.

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Vector completes suborbital test launch, signs contract

The competition heats up: The smallsat rocket company Vector Space Systems successfully completed its first suborbital test launch on July 30 as part of the signing of a new contract for 21 launches.

This company is moving quickly. In April they obtained financing, In July they revealed their launch schedule, with the first launch set for 2018. Mere weeks later, they complete their first test flight and announce a major launch contract.

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Conscious Choice cover

Now available in hardback and paperback as well as ebook!

 

From the press release: In this ground-breaking new history of early America, historian Robert Zimmerman not only exposes the lie behind The New York Times 1619 Project that falsely claims slavery is central to the history of the United States, he also provides profound lessons about the nature of human societies, lessons important for Americans today as well as for all future settlers on Mars and elsewhere in space.

 
Conscious Choice: The origins of slavery in America and why it matters today and for our future in outer space, is a riveting page-turning story that documents how slavery slowly became pervasive in the southern British colonies of North America, colonies founded by a people and culture that not only did not allow slavery but in every way were hostile to the practice.  
Conscious Choice does more however. In telling the tragic history of the Virginia colony and the rise of slavery there, Zimmerman lays out the proper path for creating healthy societies in places like the Moon and Mars.

 

“Zimmerman’s ground-breaking history provides every future generation the basic framework for establishing new societies on other worlds. We would be wise to heed what he says.” —Robert Zubrin, founder of the Mars Society.

 

All editions are available at Amazon, Barnes & Noble, and all book vendors, with the ebook priced at $5.99 before discount. All editions can also be purchased direct from the ebook publisher, ebookit, in which case you don't support the big tech companies and the author gets a bigger cut much sooner.

 

Autographed printed copies are also available at discount directly from the author (hardback $29.95; paperback $14.95; Shipping cost for either: $6.00). Just send an email to zimmerman @ nasw dot org.

Leaving Earth cover

Leaving Earth: Space Stations, Rival Superpowers, and the Quest for Interplanetary Travel, can be purchased as an ebook everywhere for only $3.99 (before discount) at amazon, Barnes & Noble, all ebook vendors, or direct from my ebook publisher, ebookit.

 

If you buy it from ebookit you don't support the big oppressive tech companies and I get a bigger cut much sooner.

 

Winner of the 2003 Eugene M. Emme Award of the American Astronautical Society.

 
"Leaving Earth is one of the best and certainly the most comprehensive summary of our drive into space that I have ever read. It will be invaluable to future scholars because it will tell them how the next chapter of human history opened." -- Arthur C. Clarke

Design problems for Starliner

In the heat of competition: Boeing is working to correct two serious design problems that cropped up during the construction of its Starliner manned capsule.

First the thing was weighing too much:

One issue involved the mass of the crew capsule, which outgrew the lift capability of the United Launch Alliance Atlas 5 rocket selected to put it into orbit. The CST-100 Starliner will ride an Atlas 5 rocket with two solid rocket boosters and a dual-engine Centaur upper stage, and although Boeing and ULA engineers considered adding a third strap-on motor to compensate for the capsule’s extra weight, managers now have the spacecraft back under its mass allowance, Ferguson said.

Second, the capsule has a shape problem:

Ferguson said Boeing has a model of the Atlas 5 rocket and CST-100 Starliner in a wind tunnel to verify a change to capsule’s outer shape devised to overcome higher-than-expected aerodynamic launch loads discovered in testing. “They had one issue, a non-linear aerodynamic loads issue, where they were getting some high acoustic loads right behind the spacecraft,” said Phil McAlister, head of NASA’s commercial spaceflight development office in Washington.

Something here is rotten. It seems to me that Boeing shouldn’t be having these very basic problems right off the bat. In the past, under the older cost-plus contracts NASA used to routinely hand out, these kinds of problems would simply have meant that Boeing would have gotten more money from NASA, This time, however the contract is fixed-price. If Boeing has problems or delays, the company will have to bear the cost, not NASA. I suspect these problems might have occurred because of some cultural laziness at Boeing. Their management is used to not having to eat the cost of these kinds of mistakes. Now, they will. I expect the culture to therefore begin changing.

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Io’s atmosphere freezes and reinflates daily

New data from the ground-based Gemini telescope suggests that Io’s sulfur dioxide atmosphere freezes and then reinflates each time the moon flies through Jupiter’s shadow.

A study led by SwRI’s Constantine Tsang concluded that Io’s thin atmosphere, which consists primarily of sulfur dioxide (SO2) gas emitted from volcanoes, collapses as the SO2 freezes onto the surface as ice when Io is shaded by Jupiter. When the moon moves out of eclipse and ice warms, the atmosphere reforms through sublimation, where ice converts directly to gas.

The data is somewhat uncertain, however, as it based on only two observations.

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NASA delays asteroid redirect mission one year

NASA has decided to delay by one year the planned launch dates for both its unmanned and manned missions to an asteroid.

And why might you ask?

Mr. Gerstenmaier further stated that “We had trouble getting the funding together for this thing. So this slip of the one year that you see wasn’t caused by technical. It was really caused by budget availability. We just didn’t have the budget available to go do this.”

Also, the article notes that the launch rocket for the unmanned mission, now set for 2021, will be one of three possible rockets.

No elaboration was given as to what those “three rockets” are, though SLS, one of SpaceX’s Falcon family of rockets, and Atlas V are understood to be the prime contenders at this time.

The unmanned mission might happen (though I wouldn’t bet on it). As for the manned mission, there is a reason NASA has had trouble getting funding. SLS/Orion cost too much. Congress simply doesn’t want to spend that much for the actual missions. They will dole out a lot of cash for development (and the pork that goes with it), but even they can’t afford the gigantic budgets NASA needs to actually fly real missions.

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Millennials favor GOP, want Clinton imprisoned

There is hope: Despite oversampling Democrats, a new poll shows that millennials now favor the Republican Party, with a plurality calling for Hillary Clinton’s imprisonment.

Among ages 18 to 29, only 36 percent have a favorable view of the Democrat Party, and 47 have an unfavorable view. The low favorability number can likely be tied to young voters who were upset by how the DNC attempted to favor Hillary Clinton over millennial-favorite Bernie Sanders. And, some of these millennials are even saying they view the Republican Party more favorably. The GOP is leading the Democrats by 5 percent, scoring 41 percent favorability. Millennials have the most favorable view of the GOP versus other age demographics.

Later in the poll, we might have found out why: a plurality of millennials believe Clinton should be in prison. In fact, millennials are the only age demographic where more voters believe she should be in prison than those opposed to arresting her. 40 percent of millennials want her jailed, while just 39 percent oppose it (21 percent not sure).

For the past century the Democratic Party has had a lock on young voters. No matter the issue or candidate, voters under 30 routinely voted for Democrats in large majorities. For this poll to show such a trend away from the Democratic Party suggests that maybe the youngest voters are finally waking up to the reality facing them, due largely because of that Democratic Party.

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Top IRS officials approved and supervised harassment of conservatives

Working for the Democratic Party: Newly released FBI interviews prove that top IRS officials in Washington, like Lois Lerner and Holly Paz, organized and ran the harassment of conservatives prior to the 2012 election.

The FBI documents also reveal that IRS officials stated that the agency was targeting conservative groups in the summer of 2011 because of their ideology and political affiliation. According to one senior tax law specialist, “The case seemed to be pulled because of the applicant’s political affiliation and screening is not supposed to occur that way … [Redacted] said he thought the cases were being pulled based upon political affiliations.” And IRS senior official Nancy Marks, appointed by Miller to conduct an internal investigation stated, “Cincinnati was categorizing cases based on name and ideology, not just activity.” [emphasis mine]

In others, the evidence shows beyond a shadow of a doubt that the IRS was being used by Democrats in Washington for the express purposed of harassing and attacking their political opponents.

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Angara gets a customer

The competition heats up: Russia has signed its first international contract for its new still-underdevelopment Angara rocket.

Leading Russian rocket developer, GKNPTs Khrunichev, signed up the first foreign commercial passenger for the light version of its new-generation Angara rocket. The South-Korean Kompsat-6 remote-sensing satellite (a.k.a. Arirang) was booked for a ride on the Angara-1.2 launch vehicle from Plesetsk around 2020. Equipped with a Synthetic Aperture Radar, SAR, the 1.7 ton spacecraft should be inserted into the Sun-synchronous orbit.

More here.

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China’s Chang’e 3 finds no water on Moon

The uncertainty of science: After more than 2 1/2 years on the lunar surface China’s Chang’e 3 lunar lander has detected no water at its landing site.

This result, while not in direct conflict with the orbital data from India’s Chandrayaan-1, suggests that the question of water on the Moon is a very complex one. Chandrayaan-1 detected evidence that suggested their might be deposits of water in certain surface regions, locked up in the regolith. Chang’e 3 found no water at its specific location. The two results do not have to conflict, but the latter does raise the uncertainty of Chandrayaan-1’s detection.

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Russia’s troubled new spaceport

Link here. The article provides a nice summary of the many problems I have posted here on Behind the Black over the past three years, describing the corruption, cost overruns, and delays that have dominated the construction of Russia’s Vostochny spaceport.

I think this excerpt encapsulates the project’s basic problem:

Andrei Ionin of the Russian Academy of Cosmonautics, who helped draw up the original plans for Vostochny, said the idea was for the facility to boost the economy of the depressed Far East region. “It should have become an innovation cluster … with a smart city to attract bright young specialists,” Ionin said. Instead, the accompanying “innovation hub” was built near Moscow, and according to Oberg, only a skeleton crew is posted to Svobodny, the town that serves the spaceport.

“The original idea was botched,” Ionin said. He added that the project now has “no meaning” and is “like a fifth wheel in the Russian space program.”

The goal was not to improve efficiency or save costs, but to fulfill the idealistic hopes of a central planner whose plans were essentially very much divorced from reality. Meanwhile, the corruption that permeates all of Russian’s big industries honed in on this project as a great way to skim off a lot of cash for their personal bank accounts.

According to an expose by RBC published in July 2015, the original cost of the facility was supposed to be just $1.9 billion in today’s prices. Already, though, the cost of building the first of two launch pads has exceeded $2.4 billion, according data on dozens of state contracts compiled by RBC. Officials did not release an official budget for the spaceport before construction began in 2011.

Russian anti-graft activists allege that much of this overspend can be attributed to corruption. They say that, like many other Russian mega-projects, it has become a gravy train for well-connected embezzlers. “There are a lot of corruption violations,” said Lyubov Sobol, a lawyer at the grassroots non-governmental organization the Anti-Corruption Fund. Sobol, who published an exposé on cost overruns at Vostochny last year, added: “The construction is overpriced by billions of rubles.”

Russian prosecutors say that least $165 million was embezzled during the construction process and several contractors have been charged. “I doubt the full extent [of the embezzlement] has been publicized,” said veteran American journalist and historian James Oberg, an expert on the Russian space program.

It will be especially revealing to compare Vostochny’s cost and development time with the spaceport that SpaceX is privately building in Texas. Which do you think will cost less and be fully operational first? I think I know.

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Japan’s troubled space agency

Link here. The article describes how JAXA has pulled some remarkable successes out of the jaws of failure, but in describing these stories it made me realize how many of these failures have occurred, far more than one should expect. Just consider:

  • Nozomi failed to enter Mars orbit when its main engine did not fire as planned. The mission was a total loss.
  • Akatsuki failed to enter Venus orbit when its main engine did not fire as planned. The mission has been partly saved by the use of the spacecraft’s attitude thrusters to put it into Venus orbit five years late.
  • Hayabusa-1 had enormous problems, and was barely able to return to Earth with barely any asteroid samples, as had been the plan.

This list is essentially Japan’s entire interplanetary program since 2000, all of which failed in some significant way. The recovery of Akatsuki and Hayabusa-1 were hailed as great achievements, but in retrospect they both indicated a serious quality control problem in Japan’s space program. The loss of their most recent science X-ray telescope, Hitomi, when a software error caused the spacecraft to breakup in orbit only one month after launch, illustrated this again.

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Juno swings back towards Jupiter

Juno has now passed the farther point from Jupiter in its first orbit and has started dropping back down to the gas giant.

Juno arrived at Jupiter on July 4, firing its main rocket engine as planned for 35 minutes. The flawless maneuver allowed Jupiter’s gravity to capture the solar powered spacecraft into the first of two 53.4-day-long orbits, referred to as capture orbits. Following the capture orbits, Juno will fire its engine once more to shorten its orbital period to 14 days and begin its science mission.

But before that happens, on Aug. 27, Juno must finish its first lap around Jupiter, with a finish line that represents the mission’s closest pass over the gas giant. During the encounter, Juno will skim past Jupiter at a mere 2,600 miles (4,200 kilometers) above the cloud tops.

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Getting and Installing Linux – Part 6

Installing Windows using VirtualBox

by James Stephens

Today I will be installing Windows on VirtualBox. VirtualBox allows me to easily install and run Windows on my Linux computer without having to partition, format or otherwise disturb my hard drive. Once installed booting into the Windows guest is easy, just open VirtualBox and select Windows and hit start. Given the fact a virtual machine shares hardware resources with it’s host, generally a 64 bit host operating system can only host a 32bit guest operating system. Windows in most cases is still a 32 bit operating system.

First of all I will download VirtualBox via the my distribution’s Software Manager. Once it’s installed you will usually find its shortcut under Applications/System/Oracle VM VirtualBox in your application launcher. Click on it and VirtualBox will open to its Welcome massage. To create a virtual machine, in this case Windows, choose “new” in the VirtualBox tool bar.

Create Virtual Machine dialogue

The create virtual machine dialogue will appear where you will give the guest operating system a descriptive name and select its type and version, such as Windows XP.
» Read more

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More Junk Science and Journalism

I can’t stand it. I just can’t stand it. It keeps happening and I just can’t stand it.

Yesterday there was this absurd short news piece posted on the website of the so-called journal Science, “Apollo astronauts much more likely to die from heart disease”. describing a research paper published by one of Nature’s side journals, Scientific Reports. Before I even looked at the story I said to myself, “How can they possibly come to that conclusion considering the tiny number of humans who have ever traveled beyond Earth orbit? The sample will simply be too small to allow for any such finding.”

Then I looked at the article and found my instincts confirmed. As Steve Milloy noted on his very aptly named website, Junk Science,

Yes, the result is based on a total of three (3) cases of heart disease deaths of out seven (7) Apollo astronauts. Past the vanishingly small sample size and even smaller number of cases, heart disease is a natural disease of aging and the Apollo lunar astronauts were 10 years older than the other comparison groups.

To put it more bluntly, this was a garbage piece of very bad science. While it was somewhat embarrassing for a Nature journal to publish it, it was far more disgraceful for the journal Science to highlight it. I, however, don’t have to join these two peer-review journals and participate in their stupidity, and thus I made no mention of the story on Behind the Black, because it is my policy to not waste much time on bad science, unless I think that bad science is going to have bad repercussions.

Well the bad repercussions have arrived. Since yesterday, the following so-called news organizations have run with this story, without the slightest indication that they have faintest understanding of science, statistics, or plain common sense:
» Read more

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Martian gullies not formed by water flow

The uncertainty of science: Spectroscopy of many of the gullies on Mars strongly suggests that water had nothing to do with their formation, even though these gullies resemble closely similar gullies on Earth that were carved by flowing water..

Color coding in light blue corresponds to surface composition of unaltered mafic material, of volcanic origin. Mafic material from the crater rim is carved and transported downslope along the gully channels. No hydrated minerals are observed within the gullies, in the data from CRISM, indicating limited interaction or no interaction of the mafic material with liquid water. These findings and related observations at about 100 other gully sites on Mars suggest that a mechanism not requiring liquid water may be responsible for carving these gullies on Mars. (Gullies on Mars are a different type of feature than seasonal dark streaks called recurring slope lineae or RSL; water in the form of hydrated salt has been identified at RSL sites.) [emphasis mine]

In other words, these gullies were formed by flowing lava, not water. Considering Mars’s lower gravity, one third that of Earth’s, we should not be surprised if lava is capable of doing things there that it is not generally capable of doing on Earth. In fact, we should remind ourselves constantly that Mars is an alien planet, and that conditions there are different enough to make any predictions based on our knowledge of Earth very unreliable.

More details here.

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Making a choice in November

Two articles today provide some interesting and worthwhile information and perspective on at least two of the candidates running for President in November.

The first, Why Voting for Donald Trump Is a Morally Good Choice, makes its argument from a Christian and religious perspective. I know there is at least one regularly reader of Behind the Black who will agree with this author’s arguments wholeheartedly, and I will say that the essay at the link provides some very compelling arguments in favor of voting for Donald Trump. While he makes many very effective arguments, especially on the issue of the the Supreme Court, I think for me his most effective point comes when he asks “How can we know that Trump won’t change his mind?”:
» Read more

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Sierra Nevada preps for Dream Chaser glide tests

The competition heats up: In preparing its Dream Chaser engineering test vehicle for glide tests in California this fall, Sierra Nevada unveiled it to the press yesterday.

This is essentially the test vehicle’s first public viewing since its one glide test, when the front landing gear did not deploy correctly and the vehicle was damaged during landing. Since the landing gears were not the gears being developed for the flight craft, and since the glide test itself went well, both the company and NASA considered that glide test to be a success.

It has now been refurbished for new tests in conjunction with the company’s contract to use Dream Chaser as a cargo ship for NASA.

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SpaceX test fires one of its recovered first stages

The competition heats up: SpaceX has completed a full duration test firing of one of its recovered first stages.

The JCSAT-14 stage [which was the third recovered stage and the second to land on a barge] isn’t expected to fly again due to the initial evaluations into damage received via its high-velocity return. However, it will still provide useful test data. “Most recent rocket took max damage, due to very high entry velocity,” noted Elon Musk. “Will be our life leader for ground tests to confirm others are good.”

That testing on the JCSAT-14 booster began on Thursday, with the stage placed on the test stand at McGregor – ironically after the stand was vacated by the JCSAT-16 first stage – which recently completed testing and has since been shipped to Florida for its launch next month. The returned stage is also sported a new cap, which may be providing some simulated weight to aid the required data gathering during the test firing.

The booster conducted a long firing of 2 minutes 30 seconds (the duration of first stage flight), that began around 7pm local time on Thursday (per L2 McGregor), which will provide vital data on the returned stage as SpaceX continue preparations for validating one of its recovered booster for a re-launch later this year.

It is once again important to point out that SpaceX’s engineers here have an enormous advantage over every other rocket engineer who has ever lived. They have in hand a recovered first stage that was actually used to launch a satellite into orbit, giving them the ability to test it and find out precisely how such equipment fares during launch. This will give them the ability, unavailable to others, to make engineering improvements that will make future first stages even more reliable and reusable.

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