Category: Behind The Black

Dawn’s arrival at Ceres delayed one month

5:12 pm

Though engineers have solved the problems caused when a radiation blast disabled Dawn’s ion engine and put it into safe mode for a week, the fix will cause a one month delay in its arrival at the asteroid Ceres.

Controllers discovered Dawn was in safe mode Sept. 11 after radiation disabled its ion engine, which uses electrical fields to “push” the spacecraft along. The radiation stopped all engine thrusting activities. The thrusting resumed Monday (Sept. 15) after controllers identified and fixed the problem, but then they found another anomaly troubling the spacecraft.

Dawn’s main antenna was also disabled, forcing the spacecraft to send signals to Earth (a 53-minute roundtrip by light speed) through a weaker secondary antenna and slowing communications. The cause of this problem hasn’t been figured out yet, but controllers suspect radiation affected the computer’s software. A computer reset has solved the issue, NASA added. The spacecraft is now functioning normally.

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Blue Origin to build rocket engine for Atlas 5

4:36 pm

The competition heats up: Jeff Bezos’s company Blue Origin has signed a contract with the United Launch Alliance to build a rocket engine for the Atlas 5 rocket so that it will no longer have to depend on Russian engines.

Neither executive [of either company] would discuss a dollar figure, although it’s likely somewhat less than $1 billion. Bruno said a typical liquid-fueled rocket engine takes seven years and $1 billion to develop, but Blue Origin is already several years along on the BE-4. Bruno said the engine could be ready within four years to serve as the main engine on the company’s Atlas V rockets.

This is excellent news, because it shows that ULA is being pro-active in solving this problem, rather then waiting for Congress to act.

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Neil deGrasse Tyson under attack for fabricating quotes

10:16 am

A series of recent articles have attacked Neil deGrasse Tyson for fabricating quotes and other facts in this lectures and presentations. This article provides a good summary.

The article also notes how Tyson’s behavior is quite typical for too many modern scientists, especially those who have been touting human-caused global warming these past two decades.

In related news, climate scientist Judith Curry gave a talk at the National Press Club this week in which she outlined very cogently the real scientific debate and how politics is distorting that process. Unlike Tyson, Curry does not mince words about the data, and considers the fabrication of information to be a terrible thing for scientists to do.

And then there’s this: The Lonesomest Mann in Town.

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Another contest where you can win a ticket to space

9:39 am

Spaceship Earth Grants (SEG) has launched a contest where it will give away one space flight ticket to fly on any available launch service for every 50,000 applications it receives.

The winner (or winners) will receive a trip aboard a spaceflight provider flight available at the time of the award announcement. In other words, should the likes of space tourism companies like Virgin Galactic or Space Adventures be capable of offering trips into space at the time, then the winning candidate would be booked aboard one of their flights. Subject, of course, to availability and the various restrictions one or all of these companies may impose, along with the rider that no promise is made to be able to fly on a particular carrier.

Be warned however, the application is not free. SEG will charge you from $15 to $90, the amount “dependent upon the relative wealth of the nation in which you live.”

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Death Valley’s moving rocks

6:01 pm

An evening pause: The detective story that solved the mystery of the moving rocks of Death Valley.

For a century, these eerie rocks and their long, graceful trails have stumped visitors and scientists. The boulders of black dolomite appear to move on their own, sliding uphill across the playa’s flat lakebed. The trails are the only evidence the rocks move. No one has ever seen them set sail.


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NASA has chosen Boeing and SpaceX to build manned spacecraft to ferry crews to ISS

1:12 pm

The competition heats up: NASA has made a decision and has chosen two companies to ferry astronauts to and from ISS, and those companies are Boeing and SpaceX.

I am watching the press conference on NASA television. Some quick details from NASA here.

This is a reasonable political and economic decision. It confirms that SpaceX is ready to go and gives the company the opportunity to finish the job, while also giving Boeing the chance to show that it can compete while also giving that pork to congressional districts.

Some details: After NASA has certified that each company has successfully built its spacecraft they will have then fly anywhere from four to six missions. The certification process will be step-by-step, similar to the methods used in the cargo contracts, and will involve five milestones. They will be paid incrementally as they meet these milestones.

One milestone will be a manned flight to ISS, with one NASA astronaut on board.

One more detail. Boeing will receive $4.2 billion while SpaceX will get $2.6 billion. These awards were based on what the companies proposed and requested.

I will have more to say about this tonight on Coast to Coast, as well as on the John Batchelor show.

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Air Force to decide SpaceX certification on December 1

12:39 pm

The competition heats up: The Air Force has set December 1 for its deadline for certifying SpaceX as qualified to launch military satellites.

“I root for SpaceX to come into the competition,” Gen. John Hyten, head of Air Force Space Command, said during a speech Tuesday at the Air Force Association’s annual conference. But he warned that the company may not be ready in time. “The most important thing for this nation is assured access to space that works all the time,” he said. “That’s why the certification for SpaceX, hopefully by Dec. 1, is a big event. But if they’re not ready on Dec. 1, we have to stand up and say that, and that’s going to be difficult because I want competition.”

It sounds like the Air Force is setting this date as when it will decide one way or the other, regardless of anything SpaceX has done. I also suspect that, because of politics, this decision will hinge on what NASA decides today concerning its commercial crew contract.

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On the radio

12:28 pm

Tonight I will be appearing on the first hour of Coast to Coast with George Noory, 10 pm (Pacific), to discuss the decision of NASA, to be announced at 4 pm (Eastern) today, on what company the agency has chosen to build its commercial crew ferry.

As I mentioned earlier, the rumors say it will be Boeing. From my perspective, common sense says it should be SpaceX. We shall see.

This post will remain at the top of the website for the next few hours.

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Management problems at NASA’s asteroid hunting program

11:15 pm

An inspector general report today criticized NASA’s program to find potentially hazardous asteroids, finding it disorganized and poorly managed.

The report faulted the NEO Program’s lack of structure, and said its resources are inadequate for handling its growing agenda. In addition to the program’s Washington-based executive, Lindley Johnson, NASA funding goes to support six employees at the Minor Planet Center in Massachusetts and six more at the Jet Propulsion Laboratory in California, the inspector general’s office said.

The report said the program’s executive fell short when it came to overseeing progress in the asteroid-tracking effort. What’s more, there were no formal partnerships with the Defense Department or the National Science Foundation, or with international space agencies. Those groups could make significant contributions to the effort, the report said.

I do not doubt that this program has management problems. What government agency today doesn’t? And any that are managed well are the exception to the rule. However, the report’s conclusion that “resources are inadequate for handling its growing agenda” is typical Washington-speak for “Give us more money!” which almost never solves the management problems that made the program a failure in the first place.

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Philadelphia’s District Attorney likes to steal homes

9:23 am

Theft by government: Having broken no law, a Philadelphia husband and wife were evicted from their home and the house taken from them by the DA’s office, which stood to personally profit from the confiscation.

The nightmare began when police showed up at the house and arrested their 22-year-old son, Yianni, on drug charges — $40 worth of heroin. Authorities say he was selling drugs out of the home. The Sourvelises say they had no knowledge of any involvement their son might have had with drugs.

A month-and-a-half later police came back — this time to seize their house, forcing the Sourvelises and their children out on the street that day. Authorities came with the electric company in tow to turn off the power and even began locking the doors with screws, the Sourvelises say. Authorities won’t comment on the exact circumstances because of pending litigation regarding the case.

Police and prosecutors came armed with a lawsuit against the house itself. It was being forfeited and transferred to the custody of the Philadelphia District Attorney. Authorities said the house was tied to illegal drugs and therefore subject to civil forfeiture. In two years, nearly 500 families in Philadelphia had their homes or cars taken away by city officials, according to records from Pennsylvania’s attorney general.

This quote from later in the article is also key: “The very authorities taking the property appear to be profiting from it, according to Pennsylvania state records.”

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No first stage landing attempt on next Falcon 9/Dragon launch

3:44 am

SpaceX has decided not to attempt a soft splashdown of the Falcon 9 first stage during Saturday’s launch of the Dragon capsule to ISS.

In a change of plans, the Falcon 9 booster stage set to launch Saturday will not carry landing legs, according to Hannah Post, a SpaceX spokesperson. She said SpaceX does not plan to attempt a water landing of the first stage after its job during launch is completed.

SpaceX initially planned to program the rocket’s first stage to fly back to Earth after completing its work to boost the Dragon spacecraft off the launch pad, but engineers swapped out the Falcon 9 booster with a first stage originally assigned to another flight, officials said.

The reason for the changeout was not disclosed.

I suspect this decision is in connection with the Falcon 9R failure last month, but admit I am speculating with no inside knowledge.

I should also note that if Saturday’s launch goes as planned, it will set a new SpaceX record for the fastest turn-around between launches, less than two weeks. If they succeed, I think they will prove once and for all to most of their remaining naysayers that they are a serious, reliable, and well-run launch company.

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Philae’s landing site chosen

3:32 am

Philae's primary landing site

The Rosetta science team has chosen the primary landing site on Comet 67P/C-G for its Philae probe.

Site J is on the ‘head’ of the comet, an irregular shaped world that is just over 4 km across at its widest point. The decision to select Site J as the primary site was unanimous. The backup, Site C, is located on the ‘body’ of the comet. The 100 kg lander is planned to reach the surface on 11 November, where it will perform indepth measurements to characterise the nucleus in situ, in a totally unprecedented way.

This site is, located in the outside center of the nucleus’s smaller lobe, was picked unanimously because it appears to be the easiest to reach while also providing good science.

The descent to the comet is passive and it is only possible to predict that the landing point will place within a ‘landing ellipse’ typically a few hundred metres in size.

A one square kilometre area was assessed for each candidate site. At Site J, the majority of slopes are less than 30º relative to the local vertical, reducing the chances of Philae toppling over during touchdown. Site J also appears to have relatively few boulders, and receives sufficient daily illumination to recharge Philae and continue science operations on the surface beyond the initial battery-powered phase.

Provisional assessment of the trajectory to Site J found that the descent time of Philae to the surface would be about seven hours, a length that does not compromise the on-comet observations by using up too much of the battery during the descent.

I have put a close-up of the landing site below the fold.
» Read more

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Refusing TSA sex abuse

8:36 pm

Does this make you feel safer? The TSA last weekend tried to body search an individual after he had completed his flight. The man refused, and walked away.

Last Saturday, Kahler Nygard took a Spirit Airlines flight to Denver to visit with friends. When he departed from Minneapolis-St. Paul International Airport, Transportation Security Administration agents patted him down and allowed him to board his flight. When the plane landed, he was singled out and ordered to exit before the other passengers. After he exited the aircraft, TSA agents approached Nygard and demanded that he go through an additional pat-down and a screening of his luggage for explosive materials.

He had already arrived safely at his destination in Denver and simply wanted to leave the airport. After an argument, which can be seen in the above video [embedded below the fold], Nygard refused the pat-down, despite the fact that TSA agents claimed that he would be arrested if he did not comply, and exited the airport without incident. Nygard flew back to Minnesota yesterday without any complications.

Watch the video below the fold to see him successfully refuse to comply with these fascist thugs and leave the airport. They had no justification for detaining him, he had broken no laws, and so they could not force him to comply. He asks politely “Am I being detained? Is that an order or a request?” When it is clear that it is only a request he says he is leaving and walks away.

Had they tried to detain him at that point he would have easily won a court suit for false arrest and police abuse.

Note that this incident illustrates two things. First, TSA security is a joke. This man was on their so-called “no-fly” list (for no justifiable reason) but they still failed to screen him properly before his flight. Second, their attempt to screen him after his flight shows us that airport safety has nothing to do with the TSA’s reason for existing. The TSA serves as a tool of the government to destroy our freedoms and to establish the power of government over our lives. We should stop submitting to this abuse, and demand that it end.

» Read more

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Philae’s mission at Comet 67P/C-G

9:29 am

With the decision to pick a landing site for their Philae lander coming up this weekend, the Rosetta science team today released a press announcement describing in detail the lander’s mission.

The details are fascinating. Not only will Philae take images from the surface as well as get data of the surface and its surrounding environment, the probe will also literally pound the surface to measure its temperature as well as get seismic readings.

The MUPUS hammer is released and embeds itself into the ground so that it can measure the temperature at various depths in the subsurface. The acoustic signals of the vibrations of the hammer action will be detected by acoustic sensors in the feet of SESAME/CASSE and will be used to measure the mechanical properties of the nucleus.

If all goes well, they hope that Philae will remain operational on the surface through March.

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The competition in space continues to heat up

9:10 am

Two news stories today indicate that things are going to get increasingly interesting in the exploration of space in the coming years.

First there is this story from Joe Abbott of the Waco Tribune, who routinely reports on SpaceX news because their McGregor test facility is nearby. In it Abbott reports that SpaceX has scheduled its next Dragon supply mission to ISS for no early than September 20.

This news item however is not Abbott’s most interesting news. He also notes several twitter reports coming out a commercial satellite conference in Paris that indicate that SpaceX has closed 9 deals, including several more for its as yet unflown Falcon Heavy.

But even that is not the most interesting news. Abbott also reports that a replacement for the destroyed Falcon 9R test vehicle will be shipped to McGregor for testing in less than two months. Considering how long it takes governments to build and fly test vehicles, getting this replacement in shape for flight mere months after the failure a few weeks ago is quite impressive.

But even that was not Abbott’s most interesting SpaceX news item. » Read more

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An update on the status of NASA manned commercial competition

3:25 pm

Jason Davis at the Planetary Society blog has put together an excellent summary of the status for all three companies competing for NASA’s contract to ferry astronauts to and from ISS.

Key paragraph:

From a quantitative standpoint, Boeing is the leader. Since the first quarter of 2013, the company has been ahead in percentage of milestones completed and percentage of funding awarded. Plus, there’s the simple fact that they’ve finished all of their milestones, while SpaceX and Sierra Nevada asked for extensions. But from a qualitative standpoint, things are less straightforward. SpaceX has already proven they can fly missions to the ISS. And they’re the only CCiCap participant with a pad abort test and an in-flight abort test among their milestones.

It is very clear just looking at the actual milestones that what Boeing has done so far is not that impressive. Almost everything on their list is a paperwork review, not construction or testing of actual hardware. Meanwhile, SpaceX and Sierra Nevada are building and testing spacecraft. That they have not yet completed their milestones is hardly a big deal in this context.

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Is your firearms training realistic?

12:30 pm

Will the way you practice self-defense with your gun work in a real life situation?

Unfortunately, criminals rarely shout “threat!” as they attack, they don’t conveniently stand stock-still, and they’re incredibly uncooperative with their would-be victims. The sad fact of the matter is that even most “advanced” self-defense classes offered by reputable organizations and shooting schools only prepare us to deal with caricatures of threats, and generally in manners that won’t succeed in a real conflict.

Interesting article, and one that anyone who wants to carry a weapon, concealed or open, should read and think about.

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Playing with today’s Rosetta image of Comet 67P/C-G

12:04 am

Adjusted comet image

In releasing Wednesday’s image of Comet 67P/C-G, the Rosetta science team suggested that readers download it and play with the brightness and contrast settings to bring out some interesting details.

[I]f you adjust the contrast of the image you will see that there is a lot of ‘noise’ in the background. Some of this is simply detector noise and cosmic rays, but there seem to be a few bright objects that may be dust/ice particles between Rosetta and the comet.

In previous NAVCAM and OSIRIS images, we’ve already seen jets of gas laced with dust streaming away from the comet, and the instruments COSIMA and GIADA have started detecting dust, so it would be no surprise if these objects were also found to originate from the comet. In any case, it is a phenomenon that will clearly be studied in great detail at 67P/C-G over the coming weeks and months.

Another nice observation you might like to make while playing around with the contrast settings is that faint details can be brought out in the ‘neck’ region of 67P/C-G, which on first look is seemingly obscured by shadows. It appears as though the neck is being illuminated by the reflection of sunlight off the main body of the comet below.

The image on the left above is the image as released. The image on the right I have brightened considerably to bring out additional details. As they noted, you can see topographical details in the shadowed neck area. Also, the entire nucleus seems to be surrounded by faint dust streaming away in all directions.

It is going to be a great deal of fun to watch this comet change over the next year as it makes its journey around the Sun.

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The first of two coronal mass ejectors from a solar flare has arrived.

11:14 pm

An alert has been issued so that the electrical grids can been properly prepared to avoid damage by the impact of these two coronal mass ejections (CME) against the Earth’s magnetic field.

The first of the two CMEs predicted to arrive today made its appearance right on time. G1 ((Minor) geomagnetic storming is expected to begin within the next few hours with a maximum projected level of G2 (Moderate) storms for September 12th. A G3 (Strong) Geomagnetic Storm Watch is still in effect for September 13th due to the combined influence of this CME and the one projected to arrive late on the 12th. G1 (Minor) storming is likely to continue into September 14th. In addition, the S1 (Minor) solar radiation storm that is in progress as a result of the eruption on September 10th is expected to persist for the next few days with a possible slight increase with the arrival of the CMEs. Keep in mind that the forecast periods listed are in Universal Time so aurora watchers in the northern U.S. should be looking for possible activity tonight through Saturday night.

While there has been a lot of fear-mongering about these two CMEs, I expect that the only consequences we will see from both, the biggest to hit the Earth during this solar maximum, will be the possibility that the northern lights might be visible in places farther south than normal.

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