Category: Behind The Black

Vector gets new contract for five launches

11:13 am

Capitalism in space: Vector has signed a contract with nanosat company Open Cosmos, which has reserved five launches from 2019 to 2023.

The most interesting tidbit in this press release was where it says that Vector is planning its first orbital launch of its Vector-R rocket in July. According to the plans their CEO Jim Cantrell had described to me when he gave me a tour of their facility in March 2017, they were going to do five suborbital test launches before doing an orbital flight. So far they have done two of these. Either they plan to do the remaining three in the next six months, or are going to go orbital sooner than originally planned.

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SpaceX cancels Texas subsidy that required Boca Chica operation in 2018

2:59 pm

Capitalism in space: SpaceX has canceled a small Texas subsidy that required it to begin operations at its Boca Chica spaceport by September 2018.

The company terminated a deal reached with the office of then-Gov. Rick Perry in late 2013 that earmarked $2.3 million from the Texas Enterprise Fund for the future spaceport at Boca Chica beach, which is near Brownsville. The project has experienced delays and SpaceX had received about $400,000 of the money, but it now has paid back all of it.

The deal mandated that, to receive the incentives dollars, the spaceport be operational by Sept. 30 this year and employ 180 people by the end of 2018. It appears SpaceX was unlikely to meet either target.

This does not mean that SpaceX is abandoning the spaceport, only that it can’t meet the schedule required by this subsidy. This also might explain why they requested an additional $5 million from Texas. They knew they were going to lose this $2.3 million subsidy and were lobbying to make up for it with other state funds.

Hat tip Robert Pratt of Pratt on Texas.

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Bitcoin-type crypto-currencies slowing SETI search for ET

2:24 pm

The mad craze for crypto-currencies like Bitcoin is actually slowing the ability of SETI to obtain the computer chips they need, thus preventing them from expanding their search for alien signals.

Seti (Search for Extraterrestrial Intelligence) researchers want to expand operations at two observatories. However, they have found that key computer chips are in short supply. “We’d like to use the latest GPUs [graphics processing units]… and we can’t get ’em,” said Dan Werthimer.

Demand for GPUs has soared recently thanks to crypto-currency mining. “That’s limiting our search for extra-terrestrials, to try to answer the question, ‘Are we alone? Is there anybody out there?’,” Dr Werthimer told the BBC. “This is a new problem, it’s only happened on orders we’ve been trying to make in the last couple of months.”

Mining a currency such as Bitcoin or Ethereum involves connecting computers to a global network and using them to solve complex mathematical puzzles. This forms part of the process of validating transactions made by people who use the currency. As a reward for this work, the miners receive a small crypto-currency payment, making it potentially profitable.

Crypto-currencies like Bitcoin remind me of the tulip craze of the early 1800s. They have no real value, are not tied to any country and its wealth, and thus are essentially a speculator’s fantasy. A lot of people playing this game are going to be hurt by it eventually.

Posted from Modi’im Ilit, the West Bank. See this essay by me for some background about this place from my previous visits.

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Why you must never buy a used smartphone

1:53 am

Link here. Essentially, the phone will often be stolen, and will inevitably be blocked, leaving you with a brick.

Posted from the airport in Madrid, awaiting my flight to Israel. I am also sitting here enjoying some fantastic European airport fast food, far better than one sees in the U.S. Lox and anchovies with cream cheese on a wonderful piece of flatbread. I had a similar experience flying through Italy a few years ago. In this area the Europeans have Americans beat.

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Off to Israel

9:24 am

I am about to leave on a ten day trip to Israel, which is why I have not commented yet on the Trump budget [pdf] and how it effects NASA and science.

The links above will give you a chance to form your own opinions, and to comment here. I will absorb them myself and post on the subject at some time I think during the trip, though in truth it generally doesn’t matter that much what a president proposes in his budget. Congress makes the decision, and usually ignores the president’s suggestions, especially if such ideas threaten their pork.

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Europe suddenly realizes that reusable rockets are possible and economical

8:53 am

The head of the European Space Agency (ESA) has admitted in his blog that the agency’s future rockets, Ariane 6 and Vega C, are not going to be competitive because they will not be reusable.

The promise to secure autonomous access to space and reduce the price by a factor of 2 proved sufficiently compelling to secure ESA member states’ agreement to finance the development. At that time, I succeeded in placing environmental concerns and the possible development of reusability among the high-level requirements:

  • Maintain and ensure European launcher competence with a long-term perspective, including possibility of reusability/fly-back.
  • Ensure possibility to deorbit upper stage directly

Due to time and cost pressure, however, these aspects did not make it onto the agenda for Ariane 6 and Vega C. Yet in the meantime, the world has moved on and today’s situation requires that we re-assess the situation and identify the possible consequences. In many discussions on the political level, the strategic goal of securing European autonomous access to space has not changed, however there is a growing sense that pressure from global competition is something that needs to be addressed. With Vega C, Ariane 62 and Ariane 64 approaching completion, it seems logical to complete these launchers in order to at least take that major step towards competitiveness. At the same time, it is essential that we now discuss future solutions, including disruptive ideas. Simply following the kind of approaches seen so far would be expensive and ultimately will fail to convince. Totally new ideas are needed and Europe must now prove it still possesses that traditional strength to surpass itself and break out beyond existing borders. In this sense, the process of discussing and deciding on a launcher system that eschews traditional solutions can send a powerful signal out into other areas as well. I therefore intend to invite innovative, really interested European players to come together to define possible ways forward. [emphasis mine]

Let me translate his bureaucratic wording: “We didn’t think reuseable rockets were practical, economical, or even possible. We took a safe route in designing Ariane 6 and Vega C. We screwed up, and now face a competitive market in which our rockets cannot compete. Thus, we need to move fast to copy the private sector, SpaceX and Blue Origin in particular, or face serious financial consequences.

Unless he forces some major cultural changes in ESA, however, I expect that by the time this government-run operation manages to duplicate the achievements of those two private companies, those companies will have marched on to even more innovative successes.

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The dying Palestinians in Syria

6:58 pm

Link here. If you want to really understand the corrupt and evil nature of the Palestinian leadership, you need only read this one article.

A Palestinian refugee camp has been under siege for more than 1,660 days. Hundreds of the camp residents have been killed, while tens of thousands have been forced to flee from their homes.

Those who have remained in the camp — mostly the elderly, women and children — live in unspeakable sanitary conditions and drink polluted water. More than 200 Palestinians from the camp, which has been under siege since 2013, have died as a result of lack of food or medicine. The conditions in the refugee camp, by any standard, are horrific.

Why have most of us not heard about the hair-raising “living” conditions that characterize this camp? Because it is not located in the West Bank or the Gaza Strip. The name of the camp is Yarmouk, and it is located about five miles from the Syrian capital of Damascus.

More than 100,000 Palestinians used to live in the 2.11 square-kilometer Yarmouk camp before the civil war erupted in Syria in 2011. By the end of 2014, the number of the camp residents had plummeted to 13,000.

And what has Palestinian Authority President Mahmoud Abbas done about this?

While his people are being killed, starved, displaced and denied medical treatment in Syria, Palestinian Authority President Mahmoud Abbas appears to be more concerned about US President Donald Trump’s recent announcement recognizing Jerusalem as the capital of Israel. Picking a fight with the US administration has become a daily national sport for Abbas and his top officials in Ramallah. Hardly a day passes without another Palestinian Authority statement strongly denouncing Trump and his administration’s policies toward the Palestinians. But when it comes to the suffering of Palestinians in Syria, Ramallah is mute.

Palestinian leaders who hold regular meetings in Ramallah simply ignore the atrocities their people face in the Arab countries, especially Syria. Instead, the leaders devote most of their time to issuing condemnations of Israeli settlements and the Trump administration, as if Palestinians are not being killed by the thousands in an Arab country.

The 82-year-old Abbas, meanwhile, has made clear where his priorities stand. Instead of searching for ways to help his people in Syria and the Gaza Strip, where hospitals are facing a deathly shortage of fuel and medicine, Abbas has just spent $50 million to purchase a “presidential plane.” [emphasis mine]

Remember the last detail highlighted above the next time Trump announces that he is cutting funds to the Palestinian Authority. It is clear that any money given to them is not going where it should, and should therefore be cut off.

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Abraham Lincoln – a tribute on his birthday

6:01 pm

An evening pause: It is Abraham Lincoln’s birthday. It is time to once again repost this Lincoln tribute. As I have said previously, it is necessary we remember again the amazing good will he repeatedly expressed, even to those who hated him and wished to kill him. As I said in 2015:

We should also remind ourselves, especially in this time of increasing anger, bigotry, and violence, of these words from his second inaugural address, spoken in the final days of a violent war that had pitted brother against brother in order to set other men free:

Fondly do we hope, fervently do we pray, that this mighty scourge of war may speedily pass away. Yet, if God wills that it continue until all the wealth piled by the bondsman’s two hundred and fifty years of unrequited toil shall be sunk, and until every drop of blood drawn with the lash shall be paid by another drawn with the sword, as was said three thousand years ago, so still it must be said “the judgments of the Lord are true and righteous altogether.”

With malice toward none, with charity for all, with firmness in the right as God gives us to see the right, let us strive on to finish the work we are in, to bind up the nation’s wounds, to care for him who shall have borne the battle and for his widow and his orphan, to do all which may achieve and cherish a just and lasting peace among ourselves and with all nations.

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Grassley-Graham memo confirms allegations in Nunes memo

11:39 am

Working for the Democratic Party: A careful analysis of the Grassley-Graham memo [pdf], released this week as a follow-up to the Nunes memo released last week, has found that it confirms the allegations of the first, and adds a few more.

More important, it clearly shows that the FBI, the Department of Justice, and the Obama administration, and possibly the FISA court itself, abused their power to go after their political opponents.

The Obama Justice Department and FBI used anonymously sourced, Clinton-campaign generated innuendo to convince the FISA court to issue surveillance warrants against Carter Page, and in doing so, they concealed the Clinton campaign’s role. Though the Trump campaign had cut ties with Page shortly before the first warrant was issued in October 2016, the warrant application was based on wild allegations of a corrupt conspiracy between the Trump campaign and the Kremlin. Moreover, the warrant meant the FBI could seize not only Page’s forward-going communications but any past emails and texts he may have stored — i.e., his Trump campaign communications.

With its verification by the Grassley-Graham memo, the Nunes memo now has about a thousand times more corroboration than the Steele dossier, the basis of the heinous allegations used by the Justice Department and FBI to get the FISA warrants.

What the Grassley-Graham memo tells us is that the Nunes memo, for all the hysteria about it, was tame. The Grassley-Graham memo tells us that we need not only a full-blown investigation of what possessed the Obama administration to submit such shoddy applications to the FISA court, but of how a judge — or perhaps as many as four judges — rationalized signing the warrants.

We need full disclosure — the warrants, the applications, the court proceedings. No more games.

Read it all. It is damning, and shows that the FBI was out to get Trump, with the approval of White House, the Justice Department, and the FISA court. They had no evidence, they knew they had no evidence, but they got a warrant anyway, and got it renewed repeatedly, allowing them to spy on the Trump campaign as well as later after he took office.

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Massive flow on Mars

9:59 am

Massive flow on Mars

Cool image time! The image on the right, cropped to post here, comes from a Mars Reconnaissance Orbiter image that shows a massive relatively recent and dark slope streak that emanates out from a single point on the surface. (Note that the release at this link rotates the image so that north points down. I have rotated back so that north points up.)

Streaks form on slopes when dust cascades downhill. The dark streak is an area of less dust compared to the brighter and reddish surroundings. What triggers these avalanches is not known, but might be related to sudden warming of the surface.

These streaks are often diverted by the terrain they flow down. This one has split into many smaller streaks where it encountered minor obstacles. These streaks fade away over decades as more dust slowly settles out of the Martian sky.

Point of origin for flow

Location of flow, west of Olympus Mons

The MRO release focuses on the fingerlike breakup of the flow as it descends into sand-dune filled plain. What is more interesting to me is the terrain where this flow originated. A close-up of that area from the full image, shown on the right, reveals a feature that could be a wash running in line with the flow’s origin, and leading uphill to a dark feature that is a likely a cliff face. (The light in this image is coming from the southeast.)

This location, at 15.2N latitude, 214.9E longitude and shown by the small cross in the image on the right and captured from this page, is west of Olympus Mons, the largest volcano on Mars. This suggests to me that the originating feature might be an outlet from a lava tube, from which water suddenly seeped out to produce this massive slope streak. A look at the mesa from which this flow came, cropped from the full image and posted below the fold, shows numerous similar slope streaks of varying ages flowing out of this mesa, with some very faint because they occurred farther in the past. Some are even within the bowl at the top of the mesa.

Whether these come from lava tubes is definitely unclear, and I suspect I will be told by geologists not likely. The seeps however do suggest strongly that this mesa might be a very good location for future colonists to look for underground water ice. Since clouds form on the western slopes of Arsia Mons, the southernmost of the three giant volcanoes to the east of Olympus Mons, and that past glacial activity has been documented there, I wonder if some of these same conditions might also exist here, on the nearby terrain west of Olympus Mons.
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Trump to propose transitioning ISS to private hands post 2024

8:57 am

It appears that the Trump administration will propose in its 2019 budget, to be released today, to cease funding ISS in 2024 but to aim at a full transition to private control so that the station is not de-orbited when federal funding ceases.

The approach the administration has chosen is one that would end NASA funding of the ISS in 2025, while offering support for the development of commercial successors. “In support of enabling a timely development and transition of commercial capabilities in LEO where NASA could be one of many customers in the mid-2020s, the Administration is proposing to end direct Federal support for the ISS in 2025 under the current NASA-directed operating model,” the document states.

The 2019 budget proposal will offer $150 million “to enable the development and maturation of commercial entities and capabilities which will ensure that commercial successors to the ISS – potentially including elements of the ISS – are operational when they are needed.” The document says “increasing investments” above that $150 million will be included in future years’ budget requests.

The end of federal funding for the ISS would not necessarily mean the end of the station, or at least some parts of it, according to the document. “[I]t is possible that industry could continue to operate certain elements or capabilities of the ISS as part of a future commercial platform,” it states.

Not surprisingly, there are already hints that there will be massive opposition to such a plan, as it will shift power (and responsibility) from the government to private contractors. Some in Washington will not want the government to lose that power. And some private contractors are simply unwilling to shoulder the responsibility for figuring out how to make money from the station, something that is certainly possible since the development costs will have been fully paid for by the taxpayer.

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Interstellar object Oumuamua tumbling chaotically

8:46 am

A new analysis of the data obtained when the interstellar object Oumuamua flew through the solar system in October 2016 suggests that it is tumbling in a chaotic manner, and that the surface is spotty.

Straight away, they discovered that ‘Oumuamua wasn’t spinning periodically like most of the small asteroids and bodies that we see in our solar system. Instead, it is tumbling, or spinning chaotically, and could have been for many billions of years.

While it is difficult to pinpoint the exact reason for this, it is thought that `Oumuamua impacted with another asteroid before it was fiercely thrown out of its system and into interstellar space. Dr Fraser explains: “Our modelling of this body suggests the tumbling will last for many billions of years to hundreds of billions of years before internal stresses cause it to rotate normally again.

To me, this data settles the question about whether Oumuamua is not an artificial structure. It is not. If it were, an impact that would have caused this kind of tumbling would have almost certainly destroyed it. Instead, it likely broke the original bolide up, producing many fragments, including Oumuamua and its elongated shape.

As for the object’s spottiness:

Dr Fraser explains: “Most of the surface reflects neutrally but one of its long faces has a large red region. This argues for broad compositional variations, which is unusual for such a small body.”

It is really a shame we couldn’t get a closer look before it sped away.

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Back from the hunt

10:13 pm

Gary looking out across the deseart during the javelina hunt

I got back from my javelina hunt earlier today, and am only now getting down to some business.

Sadly, we didn’t bag anything. In fact, based on the lack of gunfire for miles around, I suspect not many others did as well. It seemed the area we were hunting might have become a bit popular in the last two years, and the javelinas have moved on, or gotten smarter about hiding. No matter. I don’t give up easy. We shall try again next year, probably in a different more remote location.

Even so, the weekend was quite pleasant. Got to spend my time wandering about in some beautiful country. The image on the right shows my hunting partner (and mentor) Gary looking across one wash.

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A good health check for Mars Reconnaissance Orbiter

10:32 am

Link here. The article outlines in good detail the spacecraft’s present condition, which is excellent despite being in space since 2005, as well as outlining the measures being taken to keep it operational into the 2020s.

This item is probably the biggest cause for concern:

For example, some HiRISE images taken in 2017 and early 2018 show slight blurring not seen earlier in the mission. The cause is under investigation. The percentage of full-resolution images with blurring peaked at 70 percent last October, at about the time when Mars was at the point in its orbit farthest from the Sun. The percentage has since declined to less than 20 percent. Even before the first blurred images were seen, observations with HiRISE commonly used a technique that covers more ground area at half the resolution. This still provides higher resolution than any other camera orbiting Mars — about 2 feet (60 centimeters) per pixel — and little blurring has appeared in the resulting images.

HiRISE is the spacecraft’s primary instrument, and its most valuable. If it goes, we will lose our best tool right now for looking in detail at the Martian surface.

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Trump signs two-year budget deal

9:51 am

Big spending wins! The new two-year budget deal, which provides increased spending and eliminates the sequestration budget caps, has been signed into law by President Trump.

I know people might think me insane when I say this, but Trump’s comments upon signing the bill remind me of Ronald Reagan when he signed compromise bills with the Democrats that were not what he really wanted. Trump calls it a victory, but also said this:

“Without more Republicans in Congress, we were forced to increase spending on things we do not like or want in order to finally, after many years of depletion, take care of our Military,” he wrote. “Sadly, we needed some Dem votes for passage. Must elect more Republicans in 2018 Election!”

Trump continued to praise the bill as a victory, because of the big spending boost to the military. He criticized Democrats for “waste” in the bill. “Costs on non-military lines will never come down if we do not elect more Republicans in the 2018 Election, and beyond,” he said. “This Bill is a BIG VICTORY for our Military, but much waste in order to get Dem votes.”

Though I strongly think we have plenty of waste in the military as well, and that the Defense Department didn’t need any increases and could have been cut considerably, in many ways Trump’s comments here reflect reality. For the American public to get its federal government under control, that public is going to have to vote out the people who presently run it in an uncontrollable manner. And while there are many establishment Republicans to which this description applies, the vast majority of the legislators who are pushing out-of-control spending are Democrats.

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San Francisco area #1 in nation for fleeing residents

9:40 am

Fleeing the communist state: The San Francisco area is now #1 in the nation in the number of residents fleeing for more hospitable regions.

Joint Venture Silicon Valley’s own study of the out-migration says workers are moving to Sacramento, Austin, and Portland due to a number of factors. But topping the list is the high cost of housing. “You can’t even contemplate getting into the housing market here,” Hancock said. “And I don’t mean just service workers, but highly skilled professionals. The tech elite are having a hard time affording reasonable housing in Silicon Valley. That makes it difficult for employers to recruit.”

The article however also cites the politics of the region.

Dabak cites crowding, crime and politics as the reasons for her own exodus. “We don’t like it here anymore. You know, we don’t like this sanctuary state status and just the politics,” she said. She plans to sell her home for about $1 million, buy a much larger place near Nashville for less than half that and retire closer to family and friends.

I am reminded of East Germany in the 1950s. Ruled by the Soviets and the communists they installed (whom today we might call radical leftists), it became the only western nation in the world that had a shrinking population, mostly because of the vast numbers of residents that were fleeing to West Germany, where they were free to make a living as they wished. In East Germany’s communist state they were poor and oppressed. In West Germany’s capitalist state they could be prosperous and free.

To solve this problem, Khrushchev built a wall between East and West Germany, to imprison his citizens. When they continued to flee, using the loophole that existed in Berlin (with half its territory controlled by the western Allies), he then built a wall through the middle of the city. It stopped the population loss, while making the residents of his communist bloc prisoners.

What will the leftist radicals who now run California do? As people flee their bankrupt state, will they then decide to build a wall to keep people in? I wonder.

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Narwhals love glaciers!

9:23 am

New research tracking fifteen narwhals over four years has revealed that they like to hang out near glaciers that are stable and do not have many calving events.

To better understand what glacier features narwhals prefer, Laidre and her colleagues used data from 15 narwhals outfitted with recorders that tracked each animal’s movements over four years in the 1990s and 2000s in Greenland’s Melville Bay, where narwhals congregate in summer. They combined this data with information about glaciers in Melville Bay over the same time period.

The researchers examined how narwhals behaved at the glaciers and collected information about each glacier’s physical properties to create models of narwhal behavior and tease out the animals’ preferences. “Narwhals like slow-moving, big walls of ice where conditions are still and serene instead of a lot of runoff and disturbance,” Laidre said.

The researchers don’t know why the narwhals prefer these glaciers. They think the freshwater could shock small marine critters that are food for fish, which narwhals eat. Narwhals are also close relatives of beluga whales, which also seek out freshwater in summer to shed their skin, and it is possible there is something similar going on at the glacier front, Laidre said.

This is fascinating research. What is especially refreshing about it is that the press release makes no mention of global warming, a omission that is proper but increasingly rare in the politicized science community.

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SSL lawsuit against Orbital ATK to move forward

8:48 am

A judge has ruled that a lawsuit brought by SSL against Orbital ATK, two companies competing for satellite servicing work, can go forward.

The case stems a December 2016 incident where NASA officials notified SSL that there had been unauthorized access to SSL documents related to a NASA “Tipping Point” technology development award on a server at the Langley Research Center. SSL had received that award earlier in the year to work on technologies related to in-space satellite servicing.

That unauthorized access was traced to an Orbital ATK employee, who was subsequently fired by the company. However, SSL said in its suit that as many as six Orbital ATK employees viewed the documents. SSL filed the suit in March 2017 seeking an injunction to prevent Orbital ATK from using any of those documents in its own projects, as well as “other and further relief the Court may deem just and appropriate.”

Both companies have satellite servicing missions planned. What I want is for both to succeed, to provide some competition in the field. Though I suspect this is doubtful, this lawsuit has the possibiliity of killing Orbital ATK’s effort.

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New Horizons takes the most distant pictures from Earth ever taken

8:43 am

Kuiper Belt Object 2012 HE85

The New Horizons science team has released three images taken by the spacecraft from almost 3.8 billion miles from Earth, the most distant images ever taken.

The routine calibration frame of the “Wishing Well” galactic open star cluster, made by the Long Range Reconnaissance Imager (LORRI) on Dec. 5, was taken when New Horizons was 3.79 billion miles (6.12 billion kilometers, or 40.9 astronomical units) from Earth – making it, for a time, the farthest image ever made from Earth.

…LORRI broke its own record just two hours later with images of Kuiper Belt objects 2012 HZ84 and 2012 HE85 – further demonstrating how nothing stands still when you’re covering more than 700,000 miles (1.1 million kilometers) of space each day.

The images themselves are not spectacular to look at, though the two images of two different Kuiper Belt objects are the best ever taken of such objects, and certainly contain data that scientists will be able to use. The image on the right is one of these objects, 2012 HE85. For example, note how it does not appear to be round.

This exercise is in preparation for the January 1, 2019 fly-by of 2014 MU69, where the images will be sharp and detailed, and provide us a good look at such a distant object.

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NASA approves 2020 launch window for first Dream Chaser flight

8:32 am

Capitalism in space: Sierra Nevada has gotten the okay from NASA to aim for a 2020 launch window for the first flight of its reusable Dream Chaser mini-shuttle.

SNC announced Feb. 7 that it had received “authority to proceed” on that mission using the company’s Dream Chaser vehicle. The mission will launch on a United Launch Alliance Atlas 5 rocket in late 2020. The mission is the first of six in the company’s Commercial Resupply Services (CRS) 2 contract it won in 2016 to transport cargo to and from the ISS. SNC received a CRS-2 contract along with current CRS providers Orbital ATK and SpaceX.

“While we won the contract a couple of years ago, the contract still needed to be validated by a task order,” said Mark Sirangelo, executive vice president of SNC’s Space Systems business area, in a Feb. 7 speech at the Federal Aviation Administration’s Commercial Space Transportation Conference here. That order, he said, is the “biggest step” to date on the program. That flight will be a “full scale, fully operational mission,” he said, even though it will represent the first orbital flight of the Dream Chaser. Orbital ATK and SpaceX, who developed their Cygnus and Dragon spacecraft, respectively, under earlier NASA Space Act Agreements, flew demonstration missions before starting their operational CRS cargo flights.

Do not be surprised if this flight does not launch on schedule. I fully expect that development will push it back into 2021, a delay that would not be unreasonable.

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Tiangong-1 reentry now estimated between March 25 and April 17

8:26 am

China’s first space station, a test module called Tiangong-1, is now expected to reenter the atmosphere and crash to Earth sometime between March 25 and April 17.

The Tiangong-1 space lab was launched in 2011 to test docking technology and life support by hosting two crews, but loss of control over the spacecraft’s propulsion means it cannot be deorbited in a controlled manner.

The spacecraft’s orbit is decaying due to atmospheric drag and that process is accelerating as Tiangong-1 runs into denser concentrations of particles at lower altitudes.

The station will break-up during reentry, and most of it will burn up. However, some chunks will hit the ground. The article gives details about how they are tracking it in preparation for reentry.

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Off hunting javelinas again

8:01 pm

A javelina

Posting on Friday and over this weekend will be nil, as I am leaving tonight, Thursday, and will be in the back country with no phone or internet service on my second javelina hunt. If we bag something early we will be back early, but that can hardly be guaranteed.

For a description of my javelina hunt last February, go here.

Note that there will be an evening pause on Friday night, regardless.

Update: Due to technical issues, I am instead heading out tomorrow afternoon, so posting will resume for the morning hours.

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