Long essays or op-ed length commentaries on the issues of the day or on topics of special interest.
In space, science, and technology, there really is very little new news to report today. Instead, almost all the stories are about the passing of Neil Armstrong. On spacetoday.net alone I count almost seventy stories on Armstrong, practically everything posted since yesterday, And that is only a sampling.
This response tells us several things.
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I think the gracious statement by Neil Armstrong’s family sums up his life quite well.
We are heartbroken to share the news that Neil Armstrong has passed away following complications resulting from cardiovascular procedures.
Neil was our loving husband, father, grandfather, brother and friend.
Neil Armstrong was also a reluctant American hero who always believed he was just doing his job. He served his Nation proudly, as a navy fighter pilot, test pilot, and astronaut. He also found success back home in his native Ohio in business and academia, and became a community leader in Cincinnati.
He remained an advocate of aviation and exploration throughout his life and never lost his boyhood wonder of these pursuits.
As much as Neil cherished his privacy, he always appreciated the expressions of good will from people around the world and from all walks of life.
While we mourn the loss of a very good man, we also celebrate his remarkable life and hope that it serves as an example to young people around the world to work hard to make their dreams come true, to be willing to explore and push the limits, and to selflessly serve a cause greater than themselves.
For those who may ask what they can do to honor Neil, we have a simple request. Honor his example of service, accomplishment and modesty, and the next time you walk outside on a clear night and see the moon smiling down at you, think of Neil Armstrong and give him a wink.
Scientists have found new evidence that the solar sunspot cycle has influenced the Earth’s climate in the recent past.
Sirocko and his colleagues found that between 1780 and 1963, the Rhine froze in multiple places fourteen different times. The sheer size of the river means it takes extremely cold temperatures to freeze over making freezing episodes a good proxy for very cold winters in the region, Sirocko said.
Mapping the freezing episodes against the solar activity’s 11-year cycle — a cycle of the Sun’s varying magnetic strength and thus total radiation output — Sirocko and his colleagues determined that ten of the fourteen freezes occurred during years when the Sun had minimal sunspots. Using statistical methods, the scientists calculated that there is a 99 percent chance that extremely cold Central European winters and low solar activity are inherently linked.
Also this:
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In a preprint paper published today at the Los Alamos astro-ph website, scientists have taken a detailed look at the mysterious dark streaks seen by Dawn on the surface of the asteroid Vesta and have concluded that the material comes from impacts, not from volcanic activity.
The scientists also concluded that
the majority of the spectra of [dark material] are similar to carbonaceous chondrite meteorites mixed with materials indigenous to Vesta.
Carbonaceous chondrite meteorites are considered to be the most primeval material in the solar system. This means that Vesta has the potential to give scientists a convenient laboratory for studying that primeval material and the early formation of the solar system. Ideally, the best way to do this would of course be to go there.
The scientists also theorize that much of this material was brought to Vesta by a single large impact.
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The Houston Chronicle today has an editorial entitled “Let’s bring logic to NASA’s budget process” which describes and supports a bill introduced by two Republican Congressmen which would
model NASA’s budget process after that used by the Federal Bureau of Investigation. Doing so would make the agency less political and more professional. It calls for the president to appoint the NASA director to a 10-year term and would make the budget cycle multiyear rather than annual.
The editorial also quotes sponsor Congressman Frank Wolf (R-Virginia) as explaining the goal of the bill is ” to take the politics out of NASA … and create continuity in the space agency.”
Bah. The last thing I want is to take the politics out of NASA’s operations.
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Yesterday NOAA posted its monthly update of the ongoing sunspot cycle of the Sun. You can see this latest graph, covering the month of July, below the fold.
As we have seen now for almost four years, the Sun continues to under-perform the predictions of solar scientists when it comes to the number of sunspots it is producing. In fact, that the sunspot number did not rise in July is surprising, as July had appeared to be a very active month for sunspots, with some of the strongest solar flares and coronal mass ejections seen in years. Instead, the number declined ever so slightly.
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Tonight at 10:30 pm (Pacific), the new Martian rover Curiosity will hopefully touch down safely on the Martian surface to begin several years of research in the crater Gale.
What has been most amazing to me is the amount of interest in this landing by the press, especially the mainstream press. Normally these outlets don’t care that much for space exploration, a trend that began after the Apollo 11 landing in 1969 when it became trendy in liberal circles to down play space exploration so that “the money could instead be spent solving our problems here on Earth.”
Today, however, I count more than forty news articles on this upcoming landing, most of which come from mainstream sources. It seems that these outlets have finally discovered something that has been obvious from the beginning: the American public is fascinated with space exploration, and if you want to attract readers, it is better to provide coverage of what interests them rather than push a political agenda that few agree with.
Anyway, if you want to follow the landing live, go here for a full outline of options. Or go directly to NASA TV. Most of what you will see will the control room at JPL, with many engineers staring at computer screens waiting to find out if the landing was a success, about twenty minutes after it took place. This is because it will take that long for the communications signals to travel from Mars to the Earth. Essentially, Curiosity is on its own in this landing.
A press release from the Carnegie Institute today described a recent paper by astronomers that might have identified a star in the Milky Way that might go supernova sometime in the future. The star QU Carinae, is a cataclysmic variable, a binary system in which material dumped from one star onto another periodically causes an outburst of X-rays.
I emailed Stella Kafka, the lead scientist of the research paper, to find out how far away QU Carinae is and how soon it might go supernova. She responded as follows:
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For the past week there has been a new spat of articles written about human caused global warming, instigated by an op-ed (subscription required) written by scientist Richard Muller in the New York Times, where he wrote:
Three years ago I identified problems in previous climate studies that, in my mind, threw doubt on the very existence of global warming. Last year, following an intensive research effort involving a dozen scientists, I concluded that global warming was real and that the prior estimates of the rate of warming were correct. I’m now going a step further: Humans are almost entirely the cause.
Not surprisingly, the mainstream press has jumped on this op-ed and the public release of new data by Muller’s team as further proof that the debate over global warming is settled and we should all bow to our governmental overlords and agree to any regulations they propose to save the planet.
Not so fast.
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New results from the radar instrument on Lunar Reconnaissance Orbiter (LRO) has found evidence of water-ice on the slopes of Shackleton Crater, located at the Moon’s south pole. The paper, published on Saturday in Geophysical Research Letters – Planets, suggested that about 5 to 10 percent of the weight of the material on the slopes of the crater is comprised of water ice, to depths of 6 to 10 feet.
The box on the upper left in the image to the right shows the data from a radar sweep of the crater taken on April 18, 2010, and compares that to five computer models. As you can see, the data here most closely matches the 5% ice model. Two other sweeps showed similar results.
The water-ice, if there, is not in slabs of ice, as sometimes portrayed in the press, but would be mixed into the Moon’s regolith, or “topsoil”, and would have to be processed out like ore to be useful. Or to quote the paper’s conclusion:
The fundamental conclusions made with high resolution, ground based radar of Shackleton remain unaltered — that no large-scale, meters thick ice deposits are evident within the crater. Rather, Mini-RF data are consistent with roughness effects or with a small percentage of water-ice deposits admixed into the uppermost 1-2 meters of silicate regolith within Shackleton, possibly accounting for the observations made by the Clementine bistatic experiment.
Several points:
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A little over a month ago I reported here on Behind the Black some recent results from the LEND instrument on Lunar Reconnaissance Orbiter (LRO) that had found significantly less water in the permanently shadowed craters at the lunar poles than previously thought. To quote again from that paper’s abstract, which I will henceforth refer to as Sanin, et al:
This means that all [permanently shadowed regions], except those in Shoemaker, Cabeus and Rozhdestvensky U craters, do not contain any significant amount of hydrogen in comparison with sunlit areas around them at the same latitude.
And from the paper’s conclusion:
[E]ven now the data is enough for definite conclusion that [permanently shadowed regions] at both poles are not reservoirs of large deposits of water ice.
Paul Spudis of the Lunar and Planetary Institute in Houston, Texas and one of the world’s top lunar scientists then commented as follows:
You neglect to mention yet another possibility — that this paper and its conclusions are seriously flawed in almost every respect. The veracity of the LRO collimated neutron data [produced by the LEND instrument] have been questioned on serious scientific grounds. Other data sets (spectral, radar) suggest significant amounts of water at both poles, billions of metric tons in total.
Spudis also discussed this scientific dispute at length on his own blog.
When I read Dr. Spudis’s comment I immediately emailed William Boynton of the Lunar and Planetary Laboratory at the University of Arizona, one of the authors of the Sanin et al paper, to get his reaction. Today he sent me the following detailed explanation, describing the basis of the controversy and why he believes the LEND data is valid.
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Two news items from NASA today:
What I find most interesting about these stories is the fees charged by the two companies. SpaceX will be paid $82 million for its one launch, while ULA will be paid $412 million for its three launches, or about $137 million per launch.
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NOAA’s Space Weather Prediction Center today posted its monthly update of the ongoing sunspot cycle of the Sun. As I do every month, I am posting this graph, which you can see below the fold.
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Last week I received an email from the local Tucson tea party, asking if I would be willing to attend a demonstration today in response to last week’s Supreme Court decision on Obamacare. To quote the email,
We would like to stage two simultaneous protests against the train wreck they call ObamaCare, at two separate locations Monday July 2nd, 4:00pm-5:45pm. 75 people at both locations are needed to make the necessary impact. They say the Tea Party is dead. What say ye? We need your commitment.
Today those protests took place at two different prominent street corners in the Tucson area. At each location there were about fifty people lining the sidewalk and holding signs and American flags out to passing motorists. My wife Diane and I went to one of those protests. Here are my impressions:
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Today, July 1, Behind the Black celebrates its second anniversary. Though I began posting a day or two before that, I consider July 1 to be the official premiere date. Since then I have published more than 6,200 posts, about 8.5 posts per day, focusing on issues relating to science, technology, politics, and space exploration. In between I’ve also added a sprinkle of popular culture and entertainment, for both my and your pleasure.
For those who have contributed to the website, either with intelligent comments or with financial donations, I thank you. I especially appreciate the quality of the comments, even from those who frequently disagree with me. We might disagree, but in general people have kept the discussion on a rational basis, with very few personal attacks. This is how it should be.
It is my hope to continue this blog for as long as I can, assuming I can afford to do it. Of course, the more donations I receive from my loyal readers, the more likely I will be able to keep it up. If you are a regular reader and would like to help keep this blog going, please consider giving a donation. The tip jar is located at the bottom of the column on the right.
And if you have already donated, thank you again. I can’t express how much it means to me as a writer, working alone in my office, to be recognized by others in this way. Not only does it help pay the bills, it helps juice the soul, making the daily grind easier to take.
Even though Dearborn, Michigan lost a $100,000 court suit for falsely arresting and denying Christians their freedom of religion during the annual Dearborn Arab Festival, it appears the police in Dearborn have not learned their lesson. Not only do they do nothing to prevent the throwing by Muslim children of rocks, bottles, garbage, eggs, and concrete at a group of Christians who are merely standing on the sidewalk holding signs, the police eventually force the Christians to leave. As one man tells the police, “You’re rewarding riotous behavior. You’re teaching that crowd that if they riot, they’re rewarded by that rioting by kicking out the people they don’t want.”
Watch the video below the fold. It is very important to note again that these Christians were doing nothing but standing there with their signs on a public street. The response of the Muslim crowd is hardly in accordance with American principles of tolerance, and reveals a savagery and hate that is horrifying. And the willingness of the police to allow the violence is despicable.
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The Patient Centered Outcomes Research Institute (PCORI), created by Obamacare, announced its first round of grants today, part of a funding program of fifty “pilot projects” totaling $30 million.
It didn’t take much research for me to conclude that, while some of this work might be useful, most of it sounds like bureaucratic claptrap. For example, consider the description Nature gives for these three grants:
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The uncertainty of science: A new science paper, published Saturday in the Journal of Geophysical Research – Planets,, has found that there is much less water ice trapped in the permanently shadowed craters of the lunar poles than previously thought. From the abstract:
This means that all [permanently shadowed regions], except those in Shoemaker, Cabeus and Rozhdestvensky U craters, do not contain any significant amount of hydrogen in comparison with sunlit areas around them at the same latitude.
And from the paper’s conclusion:
[E]ven now the data is enough for definite conclusion that [permanently shadowed regions] at both poles are not reservoirs of large deposits of water ice.
On June 4 NOAA’s Space Weather Prediction Center posted its monthly update of the ongoing sunspot cycle of the Sun. Now that I am back from Nevada, I’ve had a chance to take a look at it, and have posted the new graph for April below the fold.
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A real estate industry group today announced that there was a nine percent jump in foreclosures during the month of May.
RealtyTrac reported that 205,990 U.S. properties received filings last month, including default notices, scheduled auctions and bank repossessions, marking the first monthly increase since January. Bank repossessions climbed steeply, up 7% to 54,844, after hitting a four-year low in April.
The report also noted that foreclosures made up 26% of U.S. home sales in first quarter and that more than 30% of mortgage borrowers were still underwater.
As someone who just moved to Tucson and spent more than six months searching for and finally purchasing a home, I can add a bit of personal experience to these dry statistics. And my perspective is sadly not encouraging.
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