Category: Behind The Black

A bullseye in space

11:18 am

Cool image time! The science team of the Swift space telescope has released a movie compiled from X-ray images taken of the first outburst from black hole V404 Cygni in 26 years. [link fixed!]

Astronomers say the rings result from an “echo” of X-ray light. The black hole’s flares emit X-rays in all directions. Dust layers reflect some of these X-rays back to us, but the light travels a longer distance and reaches us slightly later than light traveling a more direct path. The time delay creates the light echo, forming rings that expand with time.

Detailed analysis of the expanding rings shows that they all originate from a large flare that occurred on June 26 at 1:40 p.m. EDT. There are multiple rings because there are multiple reflecting dust layers between 4,000 and 7,000 light-years away from us. Regular monitoring of the rings and how they change as the eruption continues will allow astronomers to better understand their nature.

V404 Cygni is located about 8,000 light-years away. Every couple of decades the black hole fires up in an outburst of high-energy light. Its previous eruption ended in 1989.

The animation below the fold is a smaller resolution version of the movie, showing the rings as they expand outward.
» Read more

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A new double dynamo theory to explain the Sun’s solar cycle

10:45 am

A team of solar scientists have proposed a new theory that they think explains the ebb and flow of the Sun’s eleven year solar cycle, and if right can explain the periodic occurrence of grand minimums where there are essentially no sunspots for decades, such as the Maunder Minimum in the 1600s.

The theory proposes that the Sun has two different dynamos that produce different magnetic waves in its interior. Like waves that can either cancel each other out or combine for more power, these two dynamos do the same over time and thus effect the Sun’s sunspot/solar cycle.

“We found magnetic wave components appearing in pairs, originating in two different layers in the Sun’s interior. They both have a frequency of approximately 11 years, although this frequency is slightly different, and they are offset in time. Over the cycle, the waves fluctuate between the northern and southern hemispheres of the Sun. Combining both waves together and comparing to real data for the current solar cycle, we found that our predictions showed an accuracy of 97%,” said Zharkova.

Zharkova and her colleagues derived their model using a technique called ‘principal component analysis’ of the magnetic field observations from the Wilcox Solar Observatory in California. They examined three solar cycles-worth of magnetic field activity, covering the period from 1976-2008. In addition, they compared their predictions to average sunspot numbers, another strong marker of solar activity. All the predictions and observations were closely matched.

Looking ahead to the next solar cycles, the model predicts that the pair of waves become increasingly offset during Cycle 25, which peaks in 2022. During Cycle 26, which covers the decade from 2030-2040, the two waves will become exactly out of synch and this will cause a significant reduction in solar activity.

“In cycle 26, the two waves exactly mirror each other – peaking at the same time but in opposite hemispheres of the Sun. Their interaction will be disruptive, or they will nearly cancel each other. We predict that this will lead to the properties of a ‘Maunder minimum’,” said Zharkova. “Effectively, when the waves are approximately in phase, they can show strong interaction, or resonance, and we have strong solar activity. When they are out of phase, we have solar minimums. When there is full phase separation, we have the conditions last seen during the Maunder minimum, 370 years ago.”

And on this same subject, last week NOAA posted its monthly update of the solar cycle, showing the Sun’s sunspot activity in June. As I have done every month since 2010, I am posting it here, below the fold, with annotations to give it context.
» Read more

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Some results from SpaceX’s Dragon launchpad abort test

10:17 am

SpaceX has revealed some of the results from their Dragon launchpad abort test in May, which may explain why they have delayed the launch abort test until next year.

SpaceX engineers are evaluating the results of the May 6 pad abort test, in which the prototype Crew Dragon rocketed away from Cape Canaveral’s Complex 40 launch pad, reached an altitude of nearly one mile, and splashed down under parachutes just offshore in the Atlantic Ocean. Officials said data from the test showed a slight underperformance of the SuperDraco jetpack, and capsule did not reach the top speed and altitude targeted by engineers. But the test was successful by NASA’s standards, and the space agency awarded SpaceX a $30 million milestone payment after data reviews. [emphasis mine]

The article says that the delay is to make sure they are doing a launch abort test with the capsule design they intend to use, rather than an earlier design. I wonder if they also have decided they need more time to tweak their designs after this first test, and thus don’t want to use the capsule they had original planned to use since it has an older design.

Instead, the plan is to use the actual capsule after it has flown to ISS in their unmanned demo test flight of the manned capsule. They will not only be using their in-flight design for the test, this will give them extra time to study the results from the first test and revise the SuperDraco engines.

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Watch Opportunity’s full journey on Mars, in 8 minutes

9:54 am

The science team for the Mars rover Opportunity have released an 8-minute movie compiled from the rover’s hazard-avoidance cameras. Enjoy!

One comment: There is a long stretch of territory south of Albuquerque, New Mexico called Jornada de Muerto, which means “Journey of Death” in English. It gets its name from its lack of water or life. This video makes that stretch of land look like a water park, strongly highlighting the utter barrenness of the Martian surface.

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Best image yet of Pluto

9:29 am

Pluto

Very cool image time! The New Horizons science team today released [link fixed] their best image yet of Pluto, taken on July 7 immediately following the spacecraft’s recovery from safe mode.

This view is centered roughly on the area that will be seen close-up during New Horizons’ July 14 closest approach. This side of Pluto is dominated by three broad regions of varying brightness. Most prominent are an elongated dark feature at the equator, informally known as “the whale,” and a large heart-shaped bright area measuring some 1,200 miles (2,000 kilometers) across on the right. Above those features is a polar region that is intermediate in brightness.

For the first time these features look like actual surface areas on a planet, not fuzzy blobs. We are still seeing Pluto like we saw all planets prior to the space age, but at least now we know what we are looking at.

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A Democratic senator admits she doesn’t believe in free speech

9:52 am

In a television interview Senator Tammy Baldwin (D-Wisconsin) insisted that the first amendment does not apply to individuals, and that the government thus has the right to limit both their speech and religious freedoms.

Her position is that the first amendment only protects institutions. This despite the clear wording of the amendment itself, which simply says

Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances.

I don’t see any distinction made between institutions or individuals. Moreover, the courts have repeatedly ruled that these freedoms apply to everyone, individuals, institutions, everyone. Someone with even the slightest knowledge of history, both American, British, and that of all of western civilization, should also know that the battle for liberty of conscience was a battle to expressly give individuals that freedom, not institutions.

Interestingly, the article notes that in another context Baldwin has also said that she doesn’t believe it right that the first amendment protects institutions. She was part of the Democratic Party effort in the Senate in 2013 to repeal the first amendment to allow Congress the right to limit the speech of corporations.

So, to sum up, she thinks individuals aren’t given first amendment rights by the first amendment, and that the institutions that do should be denied those first amendment right as well. Sadly, her position appears to becoming more popular both with Democratic elected officials as well as the public that votes for them.

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Oregon bakers raise $200K from supporters

9:24 am

The bakers that the state of Oregon is attempting to bankrupt and gag for opposing same-sex marriage have raised $200K from supporters.

The State of Oregon has failed in its attempt to bankrupt Aaron and Melissa Klein for the crime of declining to bake a cake – as the preposterous $135,000 fine it levied was no match for the willingness of good people to help out the Kleins and their now exclusively online business, Sweet Cakes by Melissa. Through a campaign via Continue to Give, people who still respect both faith and freedom have responded to the following appeal by contributing more than $200,000.

There are two aspects of this story that are important. First, the bakers are defying the state’s order. Though their physical business has closed, they now have an online business. Second, though Go Fund Me decided recently to ban fund-raising drives that try to help Christians under attack by the homosexual fascist community, another on-line funding-raising site has appeared to replace it.

Both suggest that the rule of the leftwing state religion is going to be challenged.

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Dance of the stars

8:51 am

Astronomers have found a stellar system made up of five stars, two binary systems orbiting each other, with a fifth star orbiting one of the stars in one of the binaries.

Co-author Dr Markus Lohr, from the Open University, told BBC News that these contact binaries were stars that orbit so closely they share an outer atmosphere. The other star pair – a detached binary – has a separation distance of some three million km. The two binaries orbit in the same plane at a distance of 21 billion km.

Follow-up observations of different wavelengths of light coming from the star system uncovered a fifth star, which is linked to the detached binary star. “This is a truly exotic star system. In principle there’s no reason why it couldn’t have planets in orbit around each of the pairs of stars. Any inhabitants would have a sky that would put the makers of Star Wars to shame,” Dr. Lohr said. “There could sometimes be no fewer than five Suns of different brightnesses lighting up the landscape.”

Dr. Lohr is being a bit extravagant. Though planets are a possibility here, I suspect it very unlikely that they are habitable.

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A New Horizons map of Pluto

11:54 pm

New Horizons map of Pluto

Cool image time! The New Horizons science team today released their best global map of Pluto, as seen so far.

The center of the map shows the area that New Horizons will see close-up during the fly-by.

The elongated dark area informally known as “the whale,” along the equator on the left side of the map, is one of the darkest regions visible to New Horizons. It measures some 1,860 miles (3,000 kilometers) in length. Directly to the right of the whale’s “snout” is the brightest region visible on the planet, which is roughly 990 miles (1,600 kilometers) across. This may be a region where relatively fresh deposits of frost—perhaps including frozen methane, nitrogen and/or carbon monoxide—form a bright coating.

Continuing to the right, along the equator, we see the four mysterious dark spots that have so intrigued the world, each of which is hundreds of miles across. Meanwhile, the whale’s “tail,” at the left end of the dark feature, cradles a bright donut-shaped feature about 200 miles (350 kilometers) across. At first glance it resembles circular features seen elsewhere in the solar system, from impact craters to volcanoes. But scientists are holding off on making any interpretation of this and other features on Pluto until more detailed images are in hand.

Some of these features will not be resolved much clearer than this, as Pluto’s day is six Earth days long, and will thus not be visible any longer to the spacecraft during its last week approach. In addition, much of the southern hemisphere will also not be imaged at all, as the planet’s inclination puts much of that hemisphere out of view entirely.

Nonetheless, we will see a great deal that has never been seen before. Stay tuned!

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Musk makes first extended public comments since Falcon 9 failure

11:43 pm

In the heat of competition: Elon Musk on Tuesday made his first detailed public comments about the Falcon 9 accident, the on-going investigation, and the aftermath.

Musk hopes to release more details on the failure by the end of this week after further data analysis and engineering reviews. “At this point, the only thing that’s really clear was there was some kind of over-pressure event in the upper stage liquid oxygen tank, but the exact cause and sequence of events, there’s still no clear theory that fits with all the data,” Musk said. “So we have to determine if some of the data is a measurement error of some kind, or if there’s actually a theory that matches what appear to be conflicting data points.”

He also had no word on when launches would resume.

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New Horizons team proposes cool names for Charon and Pluto features

11:39 pm

In anticipation of their discovering many previously unseen features on both Pluto and Charon, the New Horizons science team released today a proposed list of names, including “Kirk”, “Spock”, and many other fictional science fiction characters.

Many of these suggestions were proposed by the public. Personally, I prefer the part of their proposal where they suggest naming features after real people, like Lewis Carroll and Arthur Clarke.

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Brainstorm – the world’s smartest mouse

6:01 pm

An evening pause: You might say this a variation on a Rube Goldberg device, except that instead of gravity running the show it is a mouse.

Hat tip Phill Oltmann.

Readers: I am always looking for tips for my evening pauses. If you see a video you think might fit, make a comment here mentioning that you have something, but don’t post the link. I will email you to get it from you.

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IRS defies judge’s court order in Lerner email scandal

4:42 pm

Contempt for the law: The IRS and the Obama administration today directly defied the ruling of a federal judge, who — faced with their stonewalling — had ordered them to release 1800 Lois Lerner emails to the court each Monday.

It appears to me that the IRS and the Obama administration are doing whatever they can to obstruct this investigation and to prevent these emails from ever being seen by the public. This also strongly suggests that there are some real bombshells in those emails, including evidence that there was a blatent effort by the White House, the IRS, and Democratic members of Congress to use the IRS to harass and destroy their political opponents.

I am waiting for this judge to finally show some real backbone and declare several Obama and IRS officials in direct contempt of the court and then have them arrested and imprisoned. Until he does, the Obama administration is going to continue to thumb its nose at him, and the law.

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The IRS and Obama administration planned to criminally prosecute its opponents

11:16 am

Working for the Democratic Party: New Justice Department documents released today show that in 2010 the Obama administration and the IRS were conspiring to criminally prosecute opponents of the Obama administration.

Judicial Watch today released new Department of Justice (DOJ) and Internal Revenue Service (IRS) documents that include an official “DOJ Recap” report detailing an October 2010 meeting between Lois Lerner, DOJ officials and the FBI to plan for the possible criminal prosecution of targeted nonprofit organizations for alleged illegal political activity.

The newly obtained records also reveal that the Obama DOJ wanted IRS employees who were going to testify to Congress to turn over documents to the DOJ before giving them to Congress. Records also detail how the Obama IRS gave the FBI 21 computer disks, containing 1.25 million pages of confidential IRS returns from 113,000 nonprofit social 501(c)(4) welfare groups – or nearly every 501(c)(4) in the United States – as part of its prosecution effort. According to a letter from then-House Oversight Committee Chairman Darrell Issa (R-CA) to IRS Commissioner John Koskinen, “This revelation likely means that the IRS – including possibly Lois Lerner – violated federal tax law by transmitting this information to the Justice Department.”

This bears repeating: It is illegal for the IRS to give the confidential tax returns of citizens to anyone, including the Justice Department. Worse, having done so the IRS has given the very partisan Obama administration a giant treasure-trove of data it can use to smear and destroy its opponents.

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Study finds electric cars more environmentally damaging than gas guzzlers

10:57 am

Surprise, surprise! A new study has found that in many cases electric cars actually do more damage to the environment that gasoline-run vehicles.

The study has a lot of uncertainties, and is based largely on statistical analysis, which I always find suspect. In addition:

The study’s biggest caveat, acknowledged by the researchers, is that they don’t consider a full “lifecycle” analysis of emissions—so things like making the car, drilling for oil, or transporting coal aren’t included in the environmental costs. Some previous work has found that EVs are cleaner than gas cars when you consider the totality of impacts; others have found that’s only true if the power grids that charge EVs are also clean.

Notice how they also don’t mention any of the environmental costs for making the batteries and components of an electric car. I wonder why.

Nonetheless, this study illustrates again why we should never rely on the opinions of politicians in these matters. They know less than nothing, and always base their policy on raw, simplistic emotions rather than complex knowledge. Better to let freedom, and the market decide. It always looks for the most efficient way of doing things, which in the end is always going to be better for the environment.

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Astronomers propose giant super Hubble replacement

9:52 am

A major university consortium that manages many ground- and space-based telescopes has proposed that a new giant optical space telescope be built to replace Hubble.

A report published today by the Association of Universities for Research in Astronomy in Washington, D.C., lays out the rationale for another orbiting observatory. It will have a mirror as big as 12 meters across, to both look for habitable planets around other stars and peer deep into the early aeons of the universe.

Hubble has a mirror 2.4 meters across, so this would be significantly larger. In fact, if built this new space telescope would make it bigger than any ground-based telescope that exists today.

As the article notes, the cost over-runs and delays of the infrared James Webb Space Telescope — which went from a $1 billion budget to $8 billion — will likely make Congress reluctant to fund a new giant project like this. Nonetheless, this report gives us a hint of where the astronomy community wants to head in future decades. For the past two decades they have poo-pooed the construction of a new and larger optical space telescope. It appears from this report that this culture is now changing.

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Great Britain space agency calls for an increased space effort

9:43 am

The competition heats up: The United Kingdom’s space agency has issued its proposed future strategy, focusing on a renewed involvement with ISS and the European Space Agency.

Following a public consultation and lengthy discussions across government, the new strategy, published today, concludes that continued involvement in the ISS and other programs via ESA membership is the best way to involve U.K. scientists and industry in human spaceflight. The document says the government will consider bilateral projects with other space agencies but fears always being the junior partner since the United Kingdom has no launchers or space stations. It does not think that the commercial launch industry is sufficiently mature for the United Kingdom to buy services commercially. The report also states: “The Agency will also consider its role in human exploration missions beyond Earth orbit, especially where this complements science and technology goals for robotic exploration.”

I wonder if the newly elected conservative British government agrees with this strategy. It appears to me that it was researched and written prior to the election.

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Dawn recovers from safe mode

9:17 am

Spot 1

Beginning on June 30 Dawn experienced an as yet unexplained “anomaly” that put it into safe mode for several days.

According to JPL, engineers have uploaded “configuration changes” that solved the problem, and the spacecraft has returned to normal operations, continuing its second mapping orbit of Ceres. From this position they are gathering wide angle images of the entire planet, from which they will construct a detailed global map to be used as a baseline during later more detailed close-up orbits. For example, they released this very nice image today of what is called “Spot 1”, shown on the right. I have cropped it to focus on the spot itself. Looks almost like scattered snow on the surface, doesn’t it?

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Fifth anniversary fund-raiser

12:07 am

In celebration of Behind the Black’s fifth anniversary, I am considering ending the automated Google ads that presently appear on the site. To I remove these ads, however, I need to replace that income. I am therefore asking that my readers consider contributing to the website, either with a one-time contribution or a regular subscription, as outlined in the tip jar to the right.

So far the response has been gratifying. My heart-felt thanks go out to all who have contributed.

Scroll down for new posts.

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Obamacare continues to cause health insurance premiums to skyrocket

1:06 pm

Finding out what’s in it: Health insurance companies are now requesting (and getting) rate increases from 23 to 54 percent due to the increased costs imposed by Obamacare.

Blue Cross and Blue Shield plans — market leaders in many states — are seeking rate increases that average 23 percent in Illinois, 25 percent in North Carolina, 31 percent in Oklahoma, 36 percent in Tennessee and 54 percent in Minnesota, according to documents posted online by the federal government and state insurance commissioners and interviews with insurance executives.

The Oregon insurance commissioner, Laura N. Cali, has just approved 2016 rate increases for companies that cover more than 220,000 people. Moda Health Plan, which has the largest enrollment in the state, received a 25 percent increase, and the second-largest plan, LifeWise, received a 33 percent increase.

At the same time, many insurance companies are merging or leaving the market because of the law makes profitability impossible.

Obviously, we must all then vote for Democrats so they can use their brilliance (demostrated so clearly with Obamacare) to solve this problem by nationalizing healthcare.

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New Horizons temporarily loses contact with Earth

9:38 am

Engineers lost contact with New Horizons for an hour and twenty-one minutes on Saturday.

Engineers have since begun talking with the probe again, but NASA says it will take up to several days to get New Horizons back to normal. In the meantime, the US$700-million spacecraft is not recording science data. It is just 11 million kilometres from Pluto, and closing in fast.

Communication issues are exacerbated by the fact that it takes four and a half hours to send a signal, traveling at light speed, across the nearly 4.8 billion kilometres to the spacecraft — and four and a half hours back. In that elapsed time, the Earth has rotated so much that mission controllers must switch from one to another of the three deep-space antennas that communicate with spacecraft: in Goldstone, California; Canberra; and Madrid.

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