The Rosetta team, by taking two images seventeen minutes apart, have created a 3D image of Comet 67P/C-G.
You will need the red/blue filter glasses, but if you have them, take a look, it is quite cool.
Since I think it useful to have a rough geographical understanding of the situation, I have been digging around to find some maps that will outline the territories controlled by the both the Kurds and the Islamic State (also known as the Islamic State of Iraq and Syria [ISIS]), including the areas of dispute. This link provides the best selection I’ve found so far.
Based on these maps, I wonder when ISIS will start moving into next door Iran, as its western regions are adjacent to their present holdings.
Rather than work in NASA, the best young engineers today are increasingly heading to get jobs at private companies like SpaceX and XCOR.
It is a long article, worth reading in its entirety, but this quote will give the essence:
As a NASA engineering co-op student at Johnson Space Center, Hoffman trained in various divisions of the federal space agency to sign on eventually as a civil servant. She graduated from college this year after receiving a generous offer from NASA, doubly prestigious considering the substantial reductions in force hitting Johnson Space Center in recent months. She did have every intention of joining that force — had actually accepted the offer, in fact — when she received an invitation to visit a friend at his new job with rising commercial launch company SpaceX.
Hoffman took him up on the offer, flying out to Los Angeles in the spring for a private tour. Driving up to the SpaceX headquarters, she was struck by how unassuming it was, how small compared to NASA, how plain on the outside and rather like a warehouse.
As she walked through the complex, she was also surprised to find open work areas where NASA would have had endless hallways, offices and desks. Hoffman described SpaceX as resembling a giant workshop, a hive of activity in which employees stood working on nitty-gritty mechanical and electrical engineering. Everything in the shop was bound for space or was related to space. No one sat around talking to friends in the morning, “another level from what you see at NASA,” she said. “They’re very purpose-driven. It looked like every project was getting the attention it deserved.”
Seeing SpaceX in production forced Hoffman to acknowledge NASA might not be the best fit for her. The tour reminded her of the many mentors who had gone into the commercial sector of the space industry in search of better pay and more say in the direction their employers take. She thought back to the attrition she saw firsthand at Johnson Space Center and how understaffed divisions struggled to maintain operations.
At NASA young engineers find that they spend a lot of time with bureaucracy, the pace is slow, their projects often get canceled or delayed, and the creative job satisfaction is poor. At private companies like SpaceX, things are getting built now. With that choice, no wonder the decision to go private is increasingly easy.
NASA’s bureaucracy marches on: The staff at NASA headquarters today voted to unionize.
“This successful vote will allow us to work with management to improve working conditions for NASA support and administrative staff here at NASA headquarters, thereby improving operations, saving money, and retaining an engaged and professional workforce,” said Tifarah Thomas, a program specialist within NASA’s Office of the Chief Health & Medical Officer. Professional support specialists at NASA headquarters include budget analysts, policy analysts, administrative specialists, secretaries, and others.
NHPA currently represents nearly 200 engineers and scientists at NASA in Washington. The combined unit, including the professional support specialists who voted today for IFPTE representation, will now represent more than 500 workers at the headquarters of America’s space agency. IFPTE also represents engineers and scientists at NASA labs and research facilities from coast-to-coast.
Anyone with the slightest objectivity knows that the working conditions for federal employees in Washington is glorious, with pay about double what everyone else in the country makes and benefits far exceeding even the best private packages. In addition, the hours are great and just slightly longer than what my generation would have called bankers’ hours. Moreover, if I can be blunt, these engineers are mostly paper pushers. They are not the one’s designing and building anything that might fly in space. Their only reason to unionize now is because they see a threat to their cushy jobs with the advent of private space and are organizing to secure their unneeded positions.
Astronomers have discovered that near Earth asteroid 1950DA is spinning so fast that gravity can’t hold it together. Instead, it is kept whole by cohesive forces called van der Waals forces, predicted but never detected before on an asteroid.
This is the coolest factoid from the article, however:
“We found that 1950 DA is rotating faster than the breakup limit for its density,” said Rozitis. “So if just gravity were holding this rubble pile together, as is generally assumed, it would fly apart. Therefore, interparticle cohesive forces must be holding it together.”
In fact, the rotation is so fast that at its equator, 1950 DA effectively experiences negative gravity. If an astronaut were to attempt to stand on this surface, he or she would fly off into space unless he or she were somehow anchored.
The important take away from this discovery is that it will be very easy to break this kind of asteroid up, turning a large and big threat into a collection of small but harmless rocks.
As wrong as the rioting in Ferguson might be, the militarization of the police there can do no good, and likely will make it worse.
More here: A massive SWAT team demands that peaceful protesters go home.
The second story includes details about the arrest of two reporters for reporting the events.
This story is a hoax. I am usually very good at spotting these hoaxes and not providing links to them, but this time they got me. Thanks to Caryl and Wodun for letting me know.
Horrible: A baby is killed by a NYPD cop because he didn’t want her mother to breastfeed.
The bigoted religion of peace: An Christian Iraqi refugee describes how the Muslims in Mosel celebrated the arrival of ISIS and the expulsion of Christians.
An Iraqi Christian who fled for his life from Mosul says that his Muslim neighbors welcomed the Islamic State of Syria and Iraq (ISIS) and told him “this land belongs to Islam.”
“We left Mosul because ISIS came to the city. The (Sunni) people of Mosul embraced ISIS, and drove the Christians out of the city,” the unnamed Christian refugee, who reportedly fled from Mosul to Lebanon, told Lebanese LBC/LDC TV in a July 30 interview translated by Middle East Media Research Institute (MEMRI).
And then there’s this: A mob of Muslims on the Temple Mount in Jerusalem force the closure of that site to Jews.
Watch the video below the fold and tell me who you think is bigoted and expressing hatred. As one of the Jews notes with humor near the beginnin of the video, “Look, three Jews, how many Arabs; they are calling to G-d, they are praying to G-d because of us, it’s wonderful. You see what we did?”
Things get more and more heated, beginning around 9:00, as they begin to approach the Temple Mount itself. Note that all these guys are doing is trying to take a tour of the site.
» Read more
SpaceX has been hit by its second lawsuit in a week from a former employee.
The lawsuit, filed in Los Angeles Superior Court, alleges that SpaceX supervisors impose schedules on their employees that make it impossible for them to take statutorily required rest periods every four hours or first or second meal breaks as required by California law.
I consider this suit a bigger threat to the company than the first. The first suit merely claimed that the company didn’t give its fired employees the 60 day warning as required by law. If they win, they will get some payments, but the company will be able to continue as before.
This second suit, if successfully, could force the company to change its aggressive culture, where employees are expected to work very hard, sometimes 60-80 hour weeks, to make things happen quickly. While those work hours might seem abusive to some, to most of the people working there it is what they want to do. A successful lawsuit here could force the company to literally stop them from working. The conditions then might be more relaxed, but the ability to make progress will be stymied, and the costs for making that progress will go up considerably.
The Rosetta science team announced today that the spacecraft’s Grain Impact Analyser and Dust Accumulator (GIADA) has captured its first dust grains from Comet 67P/C-G.
Earlier this month, GIADA detected the first four dust grains in its Impact Sensor. The first detection was made on 1 August, when Rosetta was 814 km from 67P/C-G, and about 543 million kilometres from the Sun. Further impacts from three more dust grains were detected on 2, 4, and 5 August, at distances of 603, 286, and 179 km from the comet, respectively.
There is still too little data to come to any firm conclusions about the density and make-up of the coma, but this announcement confirms that the instrument is working as designed. When the comet zips past the Sun at its closest point on August 13, 2015, this instrument will then be able to give us a very good assessment of this particular comet’s behavior as it slowly evaporates.
Meanwhile, the images keep coming. The picture at the top of the post was taken on August 12 from about 64 miles.
Faced with stiff competition from SpaceX, United Launch Alliance (ULA) announced today a change in leadership.
United Launch Alliance has named a new president and chief executive to replace Michael Gass, who led the Atlas and Delta rocket company since its inception in 2006. Gass will be replaced effective immediately as president and CEO by Tory Bruno, an executive at Lockheed Martin Corp., which formed ULA in December 2006 in a 50-50 joint venture with Boeing Co., ULA said in a statement Tuesday. Gass is retiring at the end of the year, according to ULA.
Despite Gass’s planned retirement, the abrupt nature of his departure has everything to do with the competition from SpaceX, something that every single article about this change at ULA noted.
Archeologists have uncovered the largest tomb ever discovered in Greece and think it is linked to the reign of Alexander the Great.
The tomb, dating to around 300 BC, may have held the body of one of Alexander’s generals or a member of his family. It was found beneath a huge burial mound near the ancient site of Amphipolis in northern Greece. Antonis Samaras, Greece’s prime minister, visited the dig on Tuesday and described the discovery as “clearly extremely significant”.
A broad, five-yard wide road led up to the tomb, the entrance of which was flanked by two carved sphinxes. It was encircled by a 500 yard long marble outer wall. Experts believe a 16ft tall lion sculpture previously discovered nearby once stood on top of the tomb.
The excavations began in 2012, and by this month hope to identify who actually was buried there.
New Cassini images of Titan have spotted the appearance of clouds above the planet’s northern seas, suggesting the overdue onset of the summer storms that climate models have predicted.
For several years after Cassini’s 2004 arrival in the Saturn system, scientists frequently observed cloud activity near Titan’s south pole, which was experiencing late summer at the time. Clouds continued to be observed as spring came to Titan’s northern hemisphere. But since a huge storm swept across the icy moon’s low latitudes in late 2010, only a few small clouds have been observed anywhere on the icy moon. The lack of cloud activity has surprised researchers, as computer simulations of Titan’s atmospheric circulation predicted that clouds would increase in the north as summer approached, bringing increasingly warm temperatures to the atmosphere there.
“We’re eager to find out if the clouds’ appearance signals the beginning of summer weather patterns, or if it is an isolated occurrence,” said Elizabeth Turtle, a Cassini imaging team associate at the Johns Hopkins University Applied Physics Lab in Laurel, Maryland. “Also, how are the clouds related to the seas? Did Cassini just happen catch them over the seas, or do they form there preferentially?”
Any conclusions drawn at this time about the seasonal weather patterns of Titan must be considered highly uncertain, since we only have been observing the planet for a period that only covers one very short portion of its very long 30 year-long year.
The story of the discovery of Ebola.
The next day—September 29—the package arrived: a cheap plastic thermos flask, shiny and blue. I settled down with Guido Van Der Groen—a shy, funny, fellow Belgian aged about thirty, a few years older than I—and René Delgadillo, a Bolivian postdoc student, to open it up on the lab bench. Nowadays it makes me wince just to think of it. Sure, we were wearing latex gloves—our boss insisted on gloves in the lab but we used no other precautions, no suits or masks of any kind.
We didn’t even imagine the risk we were taking. Indeed, shipping those blood samples in a simple thermos, without any kind of precautions, was an incredibly perilous act. Maybe the world was a simpler, more innocent place in those days, or maybe it was just a lot more reckless.
Unscrewing the thermos, we found a soup of half-melted ice: it was clear that subzero temperatures had not been constantly maintained. And the thermos itself had taken a few knocks, too. One of the test tubes was intact, but there were pieces of a broken tube—its lethal content now mixed up with the ice water—as well as a handwritten note, whose ink had partially bled away into the icy wet.
Read it all. The excerpt is from a book length memoir that looks to me to be a very worthwhile read.
Two weeks after launch the fifth and last of Europe’s ATV unmanned cargo freighters successfully docked with ISS today, bringing over seven tons of supplies to the station.
Astronomers have discovered the two most distant stars of the Milky Way.
Both stars are red giants, aging suns that shine so brightly observers can see them from afar. One star is about 890,000 light-years from Earth in the constellation Pisces—33 times farther from the Milky Way’s center than we are and well beyond the edge of the galactic disk. The only other Milky Way member at a comparable distance is a small galaxy named Leo I, which orbits ours at a distance of 850,000 light-years. If the star in Pisces revolves on a circular path as fast as we do, it takes some eight billion years to complete a single orbit around the galaxy. That’s more than half the age of the universe.
The other newfound star is about 780,000 light-years distant in the constellation Gemini and more than a million light-years from the other star. For comparison, the previous record-breaking individual star was only about half a million light-years from Earth.
Both stars are so far outside the galaxy’s disk that it is quite possible that they are not part of the Milky Way at all.
Delays in the construction of Orion’s European-built service module as well as cracks in the spacecraft’s heat shield are threatening the planned 2017 launch date for Orion’s first test flight, unmanned, beyond Earth orbit.
Note that this program, costing anywhere from $10 to $20 billion, is only building a handful of capsules for flying three or four test flights. Beyond that, there is no money.
I have predicted this before, and I will predict it again: SLS will never take any humans anywhere. The cost is too high, the bureaucracy too complex, and the schedule is too slow. It will vanish when the new private companies begin flying humans into space in the next three years.
The article is a good summary of the issue of smart gun technology, its pros and cons, as well as the effort to misuse it by many political liberals to impose gun control by sleight of hand.
The above image is not the most recent daily image from Rosetta, but it is the most interesting of the last three.
It shows the side of the comet nucleus that has not been featured in most images, as the topographical differences between its two sections is not as distinctly highlighted. What is highlighted is the neck that connects the two sections, lighter colored and thus likely made up of less dusty ice.
Also of interest here is the circular features on the larger bottom section. These certainly resemble craters, and are likely remnants of early impacts that are now been corroded away as the nucleus’s ice particles evaporate off the surface. The scientific question here is this: Why are crater features more evident on this side and section of the comet nucleus than on other areas of its surface?
Two American spacewalks planned for this month have now been postponed until the fall due an issue with a fuse in the U.S. spacesuits’ batteries.
They have to now wait until replacement batteries are brought to the station by the next Dragon supply ship.
NASA has released video and test results from the first test flight of its Low-Density Supersonic Decelerator (LDSD), referred by many press outlets as a “flying saucer” because of its shape.
The purpose of the test was to see if the saucer and its parachute would work to slow a vessel down sufficiently in the Martian atmosphere. The parachute tore and failed. The video describes the flight and the failure and how the data from this failure can now be used to modify the parachute for the next two test flights.
An evening pause: A classic from 1969. I remember seeing this for the first time at one of the very first comic book conventions in New York. It brought the house down.
Hat tip to Phil Berardelli.
It isn’t just Congress that is having trouble getting documents from the Obama administration or the bureaucracies involved in administering Obamacare.
The article describes illegal stonewalling by state Obamacare agencies in Nevada, California, Hawaii, Vermont, and New Mexico, in order to cover-up the hiring of convicted criminals within their Obamacare bureaucracy.
We’ve only just begun: Because of a typo in a family’s Obamacare healthplan, their insurance company is refusing to pay more than a million dollars in claims in connection with the premature birth of their daughter.
[T]he Review-Journal reports that the Anthem Blue Cross insurance they got through the Nevada Health Link — an ObamaCare exchange — is not paying claims. The payments are being denied, reportedly because the mother’s birth year is incorrectly listed on the insurance card. It should be 1979, but is listed as 1978. The newspaper reports the family is also struggling to get their baby daughter Kinsley added to the insurance. They are facing $1.2 million in medical bills.
They have been unable to get the bureaucracy to fix this simple little problem, which is typical of bureaucracies. Expect a lot more of this in the coming years as the government apparachiks who run Obamacare tighten their grip on our lives.
In anticipation of its fly of Pluto next year, the New Horizon spacecraft has produced a 12 frame movie showing Pluto’s moon Charon circling the planet.
The competition heats up: Sierra Nevada has announced that its Dream Chaser engineering test vehicle has been refurbished and will complete a number of manned and unmanned flight tests in the fall, with their schedule on track for a November 2016 orbital test flight.
“We will do between two and five additional flights. A couple will be crewed. As a result of the vehicle being upgraded, we will be flying our orbital flight software, which will give us about a year’s worth of advancement on the vehicle.” Flights are expected to last over a six- to nine-month period, he adds.
Sierra Nevada has also continued to expand its partnerships, both in the aerospace industry as well as with other countries. The first action is likely part of a lobbying effort to help convince NASA to choose it when it down selects its commercial manned program from three manned spacecraft to two later this year. The second action indicates that even if Sierra Nevada is not chosen by NASA, they plan to proceed to construction anyway to serve other customers.
