Year: 2017

Iran tests ballistic missile despite UN ban

9:52 am

Does this make you feel safer? In direct defiance of a UN ban on such tests, Iran on Sunday completed a new test of a medium range ballistic missile.

The Khorramshahr medium-range ballistic missile flew 600 miles before exploding, in a failed test of a reentry vehicle, officials said. Iran defense minister Brigadier Gen. Hossein Dehqan said in September that Iran would start production of the missile.

I am very curious what Trump will do to try to rein in Iran. I suspect his options will be as limited as Obama’s were, except that he is not likely to sign any make-believe nuclear deals, as Obama did.

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A review of Trump’s first 17 executive orders

9:04 am

Link here. The leftwing gnashing of teeth over Trump’s first actions since becoming president have routinely been based not on reality but on their false bigoted perceptions of Trump. The review at the link reveals how incredibly ordinary almost all of Trump’s initial actions have been. Most have been similar to the actions of past newly arrived presidents, from both parties. Many are no more than memos giving his subordinates guidance on what they should do.

Most disturbing has been the uproar over Trump’s suspension of the refugee programs from the seven Middle Eastern Arab countries. He hasn’t banned Muslim immigration. He hasn’t banned travel by those with legitimate green cards. All he has done has taken the seven countries listed by the Obama administration as the worst sources of terrorism and temporarily suspended any immigration from those countries pending a review of the vetting process. This seems completely reasonable, especially considering the number of terrorist attacks the west has experienced in recent years coming from immigrants from these countries. For politicians and academics and entertainers to try to turn this into something it is not out of what seems a blind hatred of Trump tells us how much western intellectual society has declined in recent years.

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Next Falcon 9 launch delayed as SpaceX rearranges manifest

8:13 am

Because the launchpad at Kennedy is not quite ready for the planned February 3 launch of a commercial satellite, SpaceX has rearranged its launch manifest to switch that launch with the next Dragon mission to ISS, essentially delaying their next launch by two weeks.

With [launchpad] 39A still not ready to debut in its new role with SpaceX, the first mission set to launch from this pad – the Falcon 9 launch with EchoStar 23 – was pushed to the right a number of times. Although 39A is very close to being ready to conduct launches, EchoStar 23’s launch date was deemed to be too close to the mid-February target for the CRS-10 Dragon mission.

SpaceX and NASA discussed the situation on Friday night, before deciding it would be prudent to place EchoStar 23’s launch after CRS-10, allowing engineers to finalize modification and checkout work on the famous pad and simultaneously avoid a potential delay to the important Dragon mission to the Station.

The real problem here is that SpaceX had planned to have two working launchpads by this time, but doesn’t because their first pad was damaged in the September 1 Falcon 9 launchpad explosion. The consequences is that, for at least the next month, they will not be able to set a pace of a launch every two weeks.

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Soyuz launches successfully from French Guiana

8:53 am

A Russian Soyuz rocket, built for Arianespace and launched from French Guiana, successfully placed a commercial satellite in geosynchronous orbit on Friday.

The launch has some significance. First, it was the first time a Soyuz rocket placed a payload into geosynchronous orbit. Second, the payload was the first satellite built by a German company in more than 25 years

Finally, and most important, it demonstrated that at least one configuration of the Soyuz rocket is still operational as Russia investigates the corrupt practices at the company that has been building upper stage engines for both its Soyuz and Proton rockets.

Update: Russia has revealed that this on-going investigation will now delay the next Proton rocket launch for 3.5 months. This means that launch will occur sometime in May, and will occur just weeks short of a full year after the last Proton launch on June 9, 2016.

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Making a Linux laptop

3:22 pm

Yesterday while I was sitting at my desk working on my Linux desktop computer, I got a phone call from someone from “Windows Technical Support.” The man on the line said to me, quite nicely, that they had noticed a problem with my computer and wanted to help me fix it.

I said, “You are talking about my Windows desktop computer, the one I am working right now, correct?”

The man said sweetly, “Yes, sir. That’s the computer we have seen a problem with.”

I answered sweetly, “I just want to be sure, so let me ask again. You are referring to the Windows computer in front of me, the one on my desk?”

He responded, “Yes sir. Could you press your start menu please and go to settings?”

Unfortunately, I had too much work to do, and couldn’t spend more time with him. I would have liked to have led him along for as long as possible, but simple didn’t have the time. Instead, I said, “Um, I can’t really go to my Windows settings because my desktop is a Linux computer, and has been for a decade. Have you heard of Linux?”

Instantly the phone went dead.

I tell this tale because it is only one more reason I abandoned Windows back in 2006. With Linux I have no viruses to worry about, and scammers like this can’t do me any harm.

Anyway, this post really isn’t about Windows scammers. Instead, I want to relate my experience this past week in setting up my first Linux laptop, following the step-by-step instructions provided by James Stephens and posted here on Behind the Black last year in the following series:
» Read more

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A Martian sinkhole

12:50 pm

Cool image time! The image on the right, reduced to display here, was taken by Mars Reconnaissance Orbiter and shows a very intriguing drainage pattern with several different meandering washes apparently flowing into what clearly looks like a sinkhole. As noted at the MRO website,

The drainages in this image are part of Hebrus Valles, an outflow channel system likely formed by catastrophic floods.

Hebrus Valles is located in the plains of the Northern lowlands, just west of the Elysium volcanic region. Individual channels range from several hundred meters to several kilometers wide and form multi-threaded (anastamosing) patterns. Separating the channels are streamlined forms, whose tails point downstream and indicate that channel flow is to the north. The channels seemingly terminate in an elongated pit that is approximately 1875 meters long and 1125 meters wide. Using the shadow that the wall has cast on the floor of the pit, we can estimate that the pit is nearly 500 meters deep.

To better see the shadowed floor of the sinkhole, I have cropped the full resolution image to focus on the pit itself, and increased the brightness significantly as shown on the right.

Pit bottom brightened to see floor

There does not appear to be any openings in the sinkhole floor into which water could drain, a lack that can be explained several ways. First, it is not unusual on Earth for sinkholes to have floors like this, without any obvious drainage opening, and for the water to still sink easily into the sand and rocks. Second, even if the drainage here is completely blocked, this could merely mean that it has been a very long time since water flowed here. When similar drainage systems dry up here on Earth, they fill with sediment and debris over time, so that all access to the cave below gets blocked. Many of the cave dig projects that I have been involved in over the last few decades were aimed precisely at digging out this debris to get access to the virgin cave below.

Either way, this Martian drainage indicates the presence of underground hydrology. Or to put it another way, water that future colonists can drill down into and access.

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ISS twin study suggests weightlessness stresses the body in unexpected ways

9:21 am

The first preliminary results from NASA’s comparison of Scott Kelly, who spent 340 days on ISS, and his twin brother Mark, who did not, suggests that weightlessness stresses the body’s genetic system in ways not previously measured.

Preliminary results are in from NASA’s unprecedented twin study — a detailed probe of the genetic differences between astronaut Scott Kelly, who spent nearly a consecutive year in space, and his identical twin Mark. Measurements taken before, during and after Scott Kelly’s mission reveal changes in gene expression, DNA methylation and other biological markers that are likely attributable to his time in orbit.

From the lengths of the twins’ chromosomes to the microbiomes in their guts, “almost everyone is reporting that we see differences”, says Christopher Mason, a geneticist at Weill Cornell Medical College in New York City. He and other project scientists reported the early results on 26 January in Galveston, Texas, at a meeting of scientists working in NASA’s Human Research Program. “The data are so fresh that some of them are still coming off the sequencing machines,” Mason says.

It remains unclear at this point the medical consequences of these genetic changes. The data from this first experiment is still too preliminary, and it only involves looking at two people, a sample that is obviously too small. Nonetheless, it is a beginning, and of some significance.

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Fifty years ago today: the Apollo 1 launchpad fire

9:12 am

Link here.

Fifty years ago Friday, the first – but sadly not the last – fatal spaceflight accident struck NASA when a fire claimed the lives of Virgil “Gus” Grissom, Roger Chaffee, and Ed White during a training exercise at Launch Complex 34. The accident, a major setback for the struggling Apollo program, ushered in the first understanding of the “bad day” effects of schedule pressure for spaceflight and brought with it words and reminders that still echo today.

The article provides a very detailed and accurate look at the history and causes of the accident, as well as its consequences, which even today influence American space engineering.

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85% of the world’s governments are corrupt

8:55 am

According to one think tank that studies corruption in government, 85% of the world lives under governments that are essentially corrupt.

“Corruption” is defined by Transparency International (TI) as “the abuse of entrusted power for private gain.” Each year since 1995, TI has published a Corruption Perceptions Index that scores the world’s nations out of 100 for their public sector honesty and the just-released 2016 report paints the same bleak picture we’ve been seeing now for two decades … except it’s getting worse.

According to the data, despite the illusion of elected government in half the world’s countries, democracy is losing. Only two countries scored 90 out of 100 this year, and just 54 of the 176 countries (30%) assessed in the report scored better than 50. Fifty percent might have constituted a pass in a High School arithmetic test, but for an elected government to be so inept at carrying out the will of the electorate, it is a clear betrayal of the people. The average country score this year is a paltry 43, indicating endemic corruption in a country’s public sector is the norm.

Even more damning is that more countries declined than improved in this year’s results.

Not surprisingly, the countries at the bottom of the list are almost all Middle Eastern Islamic nations, all of whom are the source of most of the world’s terrorism and Islamic madness. The few others are those trying to become communist paradises, Venezuela and North Korea.

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