Category: Behind The Black

New theory suggests Mars’ oceans formed earlier and intermittently

11:19 am

Scientists have proposed a new model for the existence of oceans on Mars’ northern plains that proposes they formed earlier, were shallower, were variable in size, and formed in conjunction with the eruptions that formed the planet’s giant volcanoes.

The proposal by UC Berkeley geophysicists links the existence of oceans early in Mars history to the rise of the solar system’s largest volcanic system, Tharsis, and highlights the key role played by global warming in allowing liquid water to exist on Mars. “Volcanoes may be important in creating the conditions for Mars to be wet,” said Michael Manga, a UC Berkeley professor of earth and planetary science and senior author of a paper appearing in Nature this week and posted online March 19.

…The new model proposes that the oceans formed before or at the same time as Mars’ largest volcanic feature, Tharsis, instead of after Tharsis formed 3.7 billion years ago. Because Tharsis was smaller at that time, it did not distort the planet as much as it did later, in particular the plains that cover most of the northern hemisphere and are the presumed ancient seabed. The absence of crustal deformation from Tharsis means the seas would have been shallower, holding about half the water of earlier estimates. “The assumption was that Tharsis formed quickly and early, rather than gradually, and that the oceans came later,” Manga said. “We’re saying that the oceans predate and accompany the lava outpourings that made Tharsis.”

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Witness tampering and intimidation by Imran Awan

9:21 am

A new report outlines the numerous examples where it appears Imran Awan, the Pakistani IT specialist hired by congressional Democrats to manage their computers and who used that position to steal government equipment and break into secure computers without permission, threatened potential witnesses against him with lawsuits and violence if they testified against him.

Here’s one example:

Soon after the House of Representatives found that Democratic IT aide Imran Awan and his family made “unauthorized access” to congressional data, Imran hurriedly vacated his house, renting it in February 2017 to a former Marine. Imran angrily told his new tenant, Andre Taggart, that he was homeless and to refuse any certified mail in Imran’s name, Taggart said. A lawyer contacted Taggart about some items Imran left behind in the house and threatened to sue if he didn’t return them, saying he’d accuse Taggart of theft, Taggart said. The equipment included Blackberries and “hard drives they look like they tried to destroy,” as well as laptops and “a lot of brand new expensive [printer] toner,” he said. Based on his military training, they appeared to Taggart to be government equipment, and he called the police.

The Capitol Police and FBI arrived to collect the computer equipment, and Taggart moved out of the house in May, he said. In late August, Taggart felt that there was enough distance between Imran and his family that it was safe to tell his story publicly.

He received a letter from days later Jesse Winograd, whose law firm Gowen Rhoades Winograd & Silva was hired by Imran to deal with the congressional matter. The letter demanded some $15,000, citing a laundry list of damages, including killing a tree in the yard. Taggart denies the charges and believes Awan may be trying to intimidate him.

Numerous other examples in the article include threats of violence and actual violence against witnesses. There is also ample evidence suggesting Awan is using blackmail against many Democratic Party representatives to keep them silent in the case.

Meanwhile, the judge in the case, a big Democrat supporter and opponent of Trump, has repeatedly delayed Awan’s trial.

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World’s largest jet engine makes first test flight

8:26 am

The world’s largest jet engine, built by GE Aviation for Boeing’s next generation wide body passenger jet, made its first test flight last week.

The GE9X is a monster compared to its predecessors. Due to the extensive use of composites in building the fan blades and the fan case, 3D-printed nozzles, new light- and heat-resistant ceramics, and reducing the number of fan blades from 22 to 16, GE was able to lighten the engine and expand its size so that its fan is now 134-inches (341 cm) across and the entire engine is as wide as a Boeing 737 fuselage. In addition, it can push 100,000 lb of thrust and is 10 percent more efficient than the GE90 engine used on the current generation of 777s.

The engine was attached to a 747 test plane for the flight, and the images at the link truly illustrate how large this engine is. The 747 still had its two outer normal engines attached, and the size difference is gob-smacking. When I first looked at the pictures I was convinced it was fake and that they had photoshopped this giant engine onto the 747. They didn’t.

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Scientists theorize that Oumuamua came from a binary star system

8:17 am

Based on statistics and computer modeling, some scientists believe that the interstellar object Oumuamau likely came from stellar binary system.

For the new study, published in the journal Monthly Notices of the Royal Astronomical Society, Jackson and his co-authors set about testing how efficient binary star systems are at ejecting objects. They also looked at how common these star systems are in the Galaxy. They found that rocky objects like ‘Oumuamua are far more likely to come from binary than single star systems. They were also able to determine that rocky objects are ejected from binary systems in comparable numbers to icy objects.

Their conclusion does make sense, though any good scientist would retain a gigantic sense of skepticism. While it is statistically reasonable to conclude that a majority of interstellar objects should come from binary systems, there is no guarantee that Oumuamua in particular did so. Even if the odds were one in a million, there is always that one, and the universe often seems prone to fooling us.

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R.I.P. Ed Charles

11:42 am

Ed “Glider” Charles, the third basemen for 1969 Miracle Mets of New York, has passed away at 84.

Few today will know his name. No matter. Charles was a poet, a kind soul, a leader of men, and a fine athlete. From the article:

The Mets released a statement on the Glider’s passing. “Ed Charles, our beloved Glider and Poet Laureate of the 1969 Mets, was one of the kindest and warmest people ever to be a Met. His essays and poems inspired his teammates to the improbable World Series championship. With Jackie Robinson as his role model, Ed perpetuated a legacy of making a positive impact on other people’s lives. Everyone at the Mets are sending condolences, thoughts and prayers to Ed’s longtime companion Lavonnie Brinkley, his two sons Edwin and Eric, sister Virginia Charles and brother Elder.”

For those who lived and watched the incredible, now almost unbelievable miracle that produced the 1969 World Champion New York Mets, Ed Charles is a person who will never be forgotten.

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McCabe’s defiant response to his firing incriminates Comey

10:22 am

Working for the Democratic Party: The defiant response yesterday by former FBI deputy director Andrew McCabe to his firing included information that appears to incriminate fired FBI director James Comey.

McCabe is accused of misleading investigators about allegedly giving information to a former Wall Street Journal reporter about the investigation of Hillary Clinton and the Clinton family’s charitable foundation. McCabe asserts in his post-firing statement that he not only had authority to “share” that information to the media but did so with the knowledge of “the director.” The FBI director at the time was Comey. “I chose to share with a reporter through my public affairs officer and a legal counselor,” McCabe stated. “As deputy director, I was one of only a few people who had the authority to do that. It was not a secret, it took place over several days, and others, including the director, were aware of the interaction with the reporter.”

If the “interaction” means leaking the information, then McCabe’s statement would seem to directly contradict statements Comey made in a May 2017 congressional hearing. Asked if he had “ever been an anonymous source in news reports about matters relating to the Trump investigation or the Clinton investigation” or whether he had “ever authorized someone else at the FBI to be an anonymous source in news reports about the Trump investigation or the Clinton investigation,” Comey replied “never” and “no.”

The Justice Department’s inspector general clearly saw this “interaction” as problematic in seeking answers from McCabe. If the inspector general considered this to be a leak to the media, any approval by Comey would be highly significant. Comey already faces serious questions over his use of a Columbia University Law School professor to leak information to the media following his own termination as director.

It must be emphasized that McCabe’s firing was recommended by FBI Office of Professional Responsibility, which is an independent division in the FBI made up of FBI officials. Moreover, his response clearly reveals McCabe’s own Democratic partisan leanings. It also links those leanings to Mueller’s investigation, which further taints it. So does this analysis: Mueller’s Investigation Flouts Justice Department Standards.

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Firefly Aerospace shows off its Lightning-1 rocket engine

9:15 am

Capitalism in space: Firefly Aerospace earlier this week did a demonstration static fire test of its Lightning-1 rocket engine, designed as the upper stage engine for its Alpha rocket.

Currently under development, the engine will power the upper stage of the company’s 95-foot-tall (29-meter-tall), two-stage Firefly Alpha rocket. The full vehicle will be capable of sending some 2,200 pounds (1000 kilograms) into low-Earth orbit (LEO) for about $10 million. Additionally, it will be able to send 1,300 pounds (600 kilograms) into a 310-mile (500-kilometer) Sun-synchronous orbit.

These numbers suggest to me that this rocket will be comparable to India’s PSLV. At $10 million per launch, it will beat everyone else in that rocket class. They expect to do their first test orbital launch sometime in late 2019.

Firefly Aerospace had gone bankrupt because of a successful lawsuit against it by Virgin Galactic. It then found new backers and came back from the dead.

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Tiangong-1 reentry window narrowed

8:57 am

Tiangong-1 re-entry map

New estimates by the European Space Agency of when China’s Tiangong-1 space station prototype will re-enter the atmosphere have now been narrowed to one week, centered on around April 4.

The map on the right, created by the Aerospace Corporation, indicates the latitudes where the module is most likely to fall. Yellow is the more likely, green is less likely, and blue is no chance at all. Note that Aerospace has not yet narrowed its re-entry window, still holding it at two weeks centered on April 4.

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China launches military surveillance satellite

8:45 am

China today successfully launched a military surveillance satellite using its Long March 2D rocket, designed to put smaller payloads in low Earth orbit.

I think the 2D would compare nicely with India’s PSLV rocket.

The leaders in the 2018 launch standings:

8 China
5 SpaceX
3 Japan
3 ULA
2 Russia
2 Europe

The U.S. and China are presently tied at 8. Note also that I am now counting Rocket Lab as a New Zealand rocket, not an American one.

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Collapsed bridge did not have tower and suspension cables

12:53 pm

The coming dark age: The Miami pedestrian bridge that collapsed yesterday only five days after installation did not have its required tower and suspension cables in place.

Engineering experts say investigators looking into the collapsed ‘instant’ bridge in Miami will want to know why a central tower which is usually built to support a suspension bridge was not in place when it collapsed onto Tamiami Trail on Thursday afternoon.

Last week, Florida International University’s official Twitter account posted a rendering of the bridge in its completed form as envisioned by the planners before its opening to foot traffic in early 2019. The rendering shows a tall central column with cables connecting it to the main span. Engineers say the design is known as a ‘cable-stayed bridge,’ which is a kind of suspension bridge, according to USA Today.

The bridge did not have the central tower in place, even though experts say it is usually placed at the early stages of construction. In the absence of a tower, there is usually a temporary support, though in this case it is unclear what the builders were using in the absence of a central structure.

I have never heard of any kind of suspension bridge ever being built in this sequence. Such bridges always install the towers and the cables, then the roadbed. Here, it increasingly looks like they put up the road bed before the tower and cables, an approach that practically guarantees the bridge will fail.

The images at the link show the presence of temporary support structures under the bridge, so it could be that the builders were using these to support the bridge until the central tower and cables could be installed. However, the bridge was made of concrete, which is far heavier and does not have the same structural strength as steel. It could be they overestimated the ability of this concrete structure to stand, without the cables.

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New Jersey school threatened with lawsuit for punishing students for visiting gun range

12:15 pm

A New Jersey high school is now threatened with a lawsuit from local gun clubs for punishing several students for daring to visit a gun range and do target practice, on their own time.

Two students at Lacey Township High-school, NJ were suspended for posting a picture of themselves shooting guns at a private gun range with the caption “fun day at the range“. The school’s zero tolerance policy says that students cannot be in possession of weapons at any time, whether on or off campus.

Association of New Jersey Rifle and Pistol Clubs today demanded in a lawyer letter that the Lacey Township School District immediately rescind disciplinary actions taken against several students for posting social media photos of themselves near firearms at a target range.

The student handbook in that district provides that students are subject to suspension if they are “reported to be in possession of a weapon of any type for any reason or purpose WHETHER ON OR OFF SCHOOL GROUNDS during the academic year.”

Association of New Jersey Rifle and Pistol Clubs attorney Dan Schmutter penned the lawyer letter, which also demands that the school district rescind its unconstitutional policy, clear the records of the students disciplined, and apologize to the students and their families.

Forget about the second amendment. A school has absolutely no authority to forbid any student from doing anything when they are not at the school. This is so over the top it is almost unbelievable. I hope the school fights, because they are going to lose big if they do.

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Anti-Trump FBI officials colluded with recused judge

9:50 am

Working for the Democratic Party: The two anti-Trump FBI officials who were having an adulterous affair while exchanging emails on how they needed to stop Trump, also appear to have colluded with the judge involved in the Michael Flynn case, Rudolph Contreras, who was suddenly recused with no explanation only days after Flynn’s guilty plea.

The text messages about Contreras between controversial Department of Justice lawyer Lisa Page and Peter Strzok, the top Federal Bureau of Investigation counterintelligence official who was kicked off Robert Mueller’s special counsel team, were deliberately hidden from Congress, multiple congressional investigators told The Federalist. In the messages, Page and Strzok, who are rumored to have been engaged in an illicit romantic affair, discussed Strzok’s personal friendship with Contreras and how to leverage that relationship in ongoing counterintelligence matters.

“Rudy is on the [Foreign Intelligence Surveillance Court]!” Page excitedly texted Strzok on July 25, 2016. “Did you know that? Just appointed two months ago.”

“I did,” Strzok responded. “I need to get together with him.”

“[He] said he’d gotten on a month or two ago at a graduation party we were both at.” [emphasis mine]

I would not be surprised if Flynn’s guilty plea will soon be vacated. This story also acts to further discredit Robert Mueller’s witchhunt investigation, and increases the leverage to either end it, or start a separate investigation into the FBI, the Justice Department, and Mueller’s investigation itself.

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Putin promises a Russian Mars mission in 2019

8:50 am

The new colonial movement: In a documentary released this week Russian President Vladimir Putin pledged that his country will send an unmanned mission to Mars in 2019, and that it will be aimed at studying water at the red planet’s poles.

This is funny. Putin is likely referring to ExoMars 2020, which Russia is partnering with the European Space Agency (ESA). In that mission, Russia is providing the rocket and the descent and landing technology for ESA’s rover. To claim that this is a Russian mission is a bit of an over-statement, since the only Mars-related equipment Russia is building involves the landing, and the ESA is also participating in that work.

Nonetheless, Putin’s words here illustrate how the competition is heating up. Every nation wants its share of the exploration of the solar system, and they are beginning to ramp up their efforts to make that happen.

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New spaceport bill becomes law in the United Kingdom

8:39 am

The new colonial movement: A new bill designed to encourage the establishment of private or public spaceports in the United Kingdom has now become law.

If you wish to read the entire law, you can download it here [pdf] My quick review suggests it deals only with the regulations and liability issues necessary to encourage the creation of spaceports, which is confirmed by the language in the press release above.

In other words, the UK punted. Initially there were suggestions this law would try to deal with the property right issues related to the Outer Space Treaty. I suspect that as they reviewed those issues, the government realized they couldn’t do much about them, without changing the treaty itself, and decided to focus on what they could change. This law is aimed at bringing spaceport business to the United Kingdom, and in that I hope it works.

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North American mountains get 3Xs the snow previously estimated

8:30 am

The uncertainty of science: A new analysis based on computer models suggests that the mountains of North America get three times more snow each year than scientists has previously estimated.

Those figures come thanks to a new analysis in which researchers used computer simulations to estimate the typical annual snowfall in each of 11 North American mountain ranges. After supercomputer simulations of regional climate that would have taken 50 years on the average laptop, the team found that those mountain ranges receive about 3018 cubic kilometers of snow a year. Although those ranges together cover only about 25% of the area stretching from the Arctic Ocean down to Mexico’s southern border, they get about 60% of its snow, the researchers report in Geophysical Research Letters. That’s nearly three times the estimate for mountain snow from one previous study, the team notes.

First, this is based on computer simulations, not actual data in the field. I wouldn’t put much money on it. Second, it does show us how little climate scientists really know about the climate, as this simulation is still using all the knowledge they have, and it comes up with a conclusion that confounds them. Third, I was astonished the article didn’t try to push the idea that this larger estimate should be blamed on human-caused global warming. It didn’t, which I suppose is a sign of some progress.

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Only five days after installation pedestrian bridge in Florida collapses

11:46 am

The coming dark age: Less than five days after it was installed at Florida International University a pedestrian bridge has collapsed, trapping and possibly killing an unknown number of people below it.

The story from the weekend describes the bridges construction and installation.

This is a horrible story. Does it, as does the Australian train story from yesterday, indicate a trend? Sadly, I worry that it does. For engineering to fail this badly, this quickly, indicates a level of incompetence or corruption at so many levels it is downright appalling.

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China’s big space launch schedule

10:19 am

This Space News article does a nice job outlining the known schedule situation for China’s Long March 5 rocket. To summarize, it appears the launch schedule is roughly as follows:

November 2018: Long March 5 launches new geosynchronous communications satellite
Early 2019: Long March 5 launches Chang’e-5 to the Moon on sample return mission
June 2019: Long March 5B launches first test flight of upgraded and reusable Shenzhou manned capsule
2020: Long March 5B launches Tianhe, first module of China’s space station
Summer 2020: Long March 5 launches China’s first rover to Mars
2020 to 2022: Long March 5B launches two more modules to complete China’s space station

This schedule all hinges on the success of that first launch.

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Russia gets multiple launch contracts for its Proton?

9:58 am

International Launch Services, Russia’s division for obtaining commercial launch contracts, announced yesterday that it obtained “multiple orders” for its Proton rocket.

ILS, a leading provider of commercial launch services, announced multiple launch assignments for Proton Medium launches that will include the use of both the 4.35 meter and the new 5.2 meter payload fairing. The missions will take place beginning in late 2019 from Pad 24 at the Baikonur Cosmodrome in Kazakhstan.

The reason I put a question mark in the headline is that this announcement is incredibly vague. It doesn’t name the customers. It doesn’t specify the actual number of launches. It really doesn’t tell us anything, other than the Proton has obtained launch orders!

I suspect the Russians have gotten some launch contracts, but I also suspect that these contracts are with Russian companies only, and they want to hide this fact because it indicates once again that they have lost their international market business to SpaceX and others. Launch orders from within Russia are essentially ordered to go to Proton by the government. No one else however wants to buy their services, because no one has faith in their quality control processes. There have been too many launch failures in recent years.

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New Air Force launch contracts for SpaceX and ULA

9:49 am

Capitalism in space: The Air Force announced yesterday that it has awarded launch contracts to ULA and SpaceX worth nearly $650 million.

Colorado-based ULA was awarded a $355 million contract for its launch services to deliver two Air Force Space Command spacecraft, labeled AFSPC-8 and AFSPC-12, to orbit. The missions are expected to launch from Cape Canaveral Air Force Station by June 2020 and March 2020, respectively.

…SpaceX, meanwhile, secured a $290 million contract to launch three next-generation Global Positioning System satellites for the Air Force, known as GPS III. The first is expected to launch from the Space Coast by March 2020, either from Cape Canaveral Air Force Station’s Launch Complex 40 or Kennedy Space Center’s pad 39A.

Note the price difference between the ULA and SpaceX.launches. ULA’s cost is $177.5 million per launch, while SpaceX’s is $96.7 million per launch. While it could be that the ULA launches need to cost more because of the nature of the payloads, I don’t buy it. The company simply charges too much, partly because its rockets are expensive. The Air Force however has a strategic need to have more than one launch company, so they bite their tongues and pay the larger amount.

I should add one positive aspect about ULA’s price. The price is considerably below what they used to charge, before SpaceX entered the game. Then, their lowest launch price was never less than $200 million, and usually much more. This lower price indicates they are working at getting competitive. Though SpaceX offers the Falcon Heavy at $90 million (with reused boosters) and $150 million (all new) to commercial customers, its price for the Air Force will likely be higher because of the Air Force’s stricter requirements. This means that ULA’s per launch price of $177.5 here is getting quite close to being competitive with the Falcon Heavy.

Note that the article mentions that SpaceX has also gotten two more commercial launch contracts with DigitalGlobe, so that company’s business continues to boom.

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Trump mentions interest in creating military “Space Force”

9:32 am

Blather and pork: In comments to soldiers in San Diego President Trump yesterday expressed interest in creating a military “Space Force” similar to the Air Force

“My new national strategy for space recognizes that space is a warfighting domain, just like the land, air and sea,” Trump said during a Tuesday speech at Marine Corps Air Station Miramar. “We may even have a Space Force, develop another one, Space Force. We have the Air Force, we’ll have the Space Force. We have the Army, the Navy.”

The administration’s National Security Strategy, released in December, repeatedly identifies space as a contested domain, a somewhat more dire take than its Obama-era predecessors, which recognized “threats posed by those who may wish to deny the peaceful use of outer space.”

“You know, I was saying it the other day — because we’re doing a tremendous amount of work in space — I said maybe we need a new force. We’ll call it the Space Force,” Trump said. “And I was not really serious, but I said, ‘What a great idea.’ Maybe we’ll have to do that. That could happen.”

Trump as usual is talking off the cuff, but might very well have a negotiating purpose. There are members of Congress who want it. Trump could possibly be considering a trade, I give you that, you let me cut this.

Or not. It is dangerous to over analyze many of Trump’s off-the-cuff statements. Many times he just does them to get some publicity and to annoy his opponents. Note also that top Air Force officials dodged this issue when asked at hearings to comment on Trump’s statement.

Bottom line however remains the same: Spending money on a Space Force dedicated to fighting in space would be, at this time, a complete waste of money. It would be pork, pure and simple.

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Johnny Cash – Hurt

6:01 pm

An evening pause: Normally I prefer live performances. Normally I don’t like music videos edited with pretentious images, often about adolescent angst. This video is none of that. It is Johnny Cash, in his old age, looking back in time.

Hat tip Jeff Poplin.

Want to suggest an evening pause? Then say so in the comments here. Don’t post the suggestion, just say that you have something to suggest, and I will contact you!

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New trains costing $2 billion too wide to fit in tunnels

5:48 pm

The Australian government in action! An order of new trains for New South Wales in Australia, costing $2 billion, have been built 20 centimeters too wide to fit in the existing tunnels.

Their solution? A very typical government one:

But Transport for New South Wales (TfNSW), the Government body that manages the state’s rail system, has come up with a cunning plan. It has proposed simply relaxing current safety standards. In addition, 10 tunnels built in the 1900s will be partially modified to allow the new trains to run. [emphasis mine]

Reading the whole article is like entering the world of Bizarro. Here is how the government explains their plan: “This option would allow the New Intercity Fleet to operate on both lines and pass each other, and therefore ensure better longer term operational outcomes, while also minimising heritage impacts through reduced tunnel lining modifications.”

They make no mention of the collisions that might occur.

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Dawn finds recent changes on Ceres

4:28 pm

New data from Dawn has found at least one spot on Ceres where recent changes appear to have occurred on the surface.

Observations obtained by the visible and infrared mapping spectrometer (VIR) on the Dawn spacecraft previously found water ice in a dozen sites on Ceres. The new study revealed the abundance of ice on the northern wall of Juling Crater, a crater 12 miles (20 kilometers) in diameter. The new observations, conducted from April through October 2016, show an increase in the amount of ice on the crater wall. “This is the first direct detection of change on the surface of Ceres,” said Andrea Raponi of the Institute of Astrophysics and Planetary Science in Rome.

Raponi led the new study, which found changes in the amount of ice exposed on the dwarf planet. “The combination of Ceres moving closer to the sun in its orbit, along with seasonal change, triggers the release of water vapor from the subsurface, which then condenses on the cold crater wall. This causes an increase in the amount of exposed ice. The warming might also cause landslides on the crater walls that expose fresh ice patches.”

There is a certain irony here. For eons, the only alien body that humans were able to get a good look at, the Moon, was also an object where almost nothing changed. Even today, after humans have visited its surface and numerous orbiting spacecraft have photographed its surface in numbing detail, the Moon has generally been found to be stable and unchanging. Though impacts do occur, and the surface does evolve over time, the Moon is probably one of the most static bodies in the solar system.

The irony is that this lunar stability gave us an incorrect impression of the rest of the solar system. Based on the Moon, it was assumed that airless or almost airless bodies like Mercury, Mars, Pluto, the large moons of Jupiter and Saturn, and asteroids like Ceres would also be stable and unchanging. What we have instead found is that the Moon is the exception that proves the rule. Most of these other worlds are unlike the Moon. They show a lot of surface evolution, over relatively short time scales. They change.

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Kepler to run out of fuel in the coming months

1:08 pm

After nine years of success, the Kepler space telescope is running out of fuel, which will force an end to the mission sometime in the next several months.

The Kepler team is planning to collect as much science data as possible in its remaining time and beam it back to Earth before the loss of the fuel-powered thrusters means that we can’t aim the spacecraft for data transfer. We even have plans to take some final calibration data with the last bit of fuel, if the opportunity presents itself.

Without a gas gauge, we have been monitoring the spacecraft for warning signs of low fuel— such as a drop in the fuel tank’s pressure and changes in the performance of the thrusters. But in the end, we only have an estimate – not precise knowledge. Taking these measurements helps us decide how long we can comfortably keep collecting scientific data.

They are doing a dance here. If they run out of fuel while collecting data, that data will be lost. If they stop collecting data too soon, however, to transmit it to Earth, they will not maximize the data obtained.

Meanwhile, the next exoplanet hunter, TESS, is scheduled for launch on April 16 on a Falcon 9 rocket.

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Bezos releases video of BE-4 static fire test

9:21 am

Capitalism in space: Jeff Bezos today released a video of a 114 second engine test of Blue Origin’s BE-4 engine.

I have embedded the video below the fold. The test was at 65% power, but it strongly suggests that the company is getting close to certifying this engine for use, which will then allow ULA to make its final decision on whether to use it in its Vulcan rocket. It also will allow Blue Origin to begin construction of its own New Glenn rocket, which is set to begin flights in 2020.
» Read more

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Orbital ATK unveils new satellite servicing robots

9:14 am

Capitalism in space: At a satellite conference yesterday Orbital ATK unveiled a new robotic satellite servicing system utilizing two new robots, the Mission Robotic Vehicle (MRV) and Mission Extension Pods (MEP), simpler yet also more sophisticated versions of its Mission Extension Vehicle (MEV) which is already planned for launch later this year.

Under the new approach, a Mission Robotic Vehicle, based on the MEV design, will carry 10 to 12 Mission Extension Pods. The Mission Robotic Vehicle would approach a customer’s satellite and use a robotic arm to attach a pod to that satellite. The pod would then take over stationkeeping, proving up to five years of additional life. The Mission Robotic Vehicle and Mission Extension Pods are intended to provide new solutions to customers that don’t need the full-fledged capabilities of the MEV. The pods have a shorter lifetime than an MEV and do not provide attitude control capabilities.

The new system, designed to be ready for service in 2021, largely incorporates existing technology. The Mission Robotic Vehicle is a version of the MEV and the Mission Extension Pods is based on Orbital ATK’s ESPASat small satellite bus.

One new technology will be the robotic arm. Tom Wilson, president of SpaceLogistics, the Orbital ATK subsidiary offering the satellite life extension program, said the company was considering technology from NASA as well as Europe. “We’ve got a couple of different options,” he said, but hasn’t yet made a decision on the specific technology.

Orbital ATK’s new design will certainly cost its customers a lot less, since its design that will allow them, with one launch, to place a robot in orbit capable of servicing up to twelve different satellites. You want to extend the life of your communications satellite by five years? You call Orbital ATK, and they use their already orbiting Mission Robotic Vehicle to install an extension pod on your satellite. This way they can spread the cost of the launch across a dozen different customers.

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Chandra looks back at the Crab Nebula

8:22 am

Link here. It is almost twenty years since the Chandra X-Ray Observatory was launched, and in celebration the science team have released another X-ray image of the Crab Nebula, taken in 2017 in league with an optical image from the Hubble Space Telescope and an infrared image from the Spitzer Space Telescope. They have also provided links to all similar past images, going back to 1999.

Some of the images are actually videos, in 2002 and 2011, showing the Crab’s dynamic nature. You can actually see flares and waves of radiation rippling out from its center.

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