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The changing color of Comet 67P/C-G

9:12 am

Data from Rosetta has found that Comet 67P/C-G has changed color and brightness since the spacecraft’s arrival.

Even when Rosetta first rendezvoused with the comet far from the Sun, ices hidden below the surface were being gently warmed, sublimating into gas, and escaping, lifting some of the surface dust away and contributing to the comet’s coma and tail. VIRTIS shows that as the ‘old’ dust layers were slowly ejected, fresher material was gradually exposed. This new surface was both more reflective, making the comet brighter, and richer in ice, resulting in bluer measurements.

On average, the comet’s brightness changed by about 34%. In the Imhotep region, it increased from 6.4% to 9.7% over the three months of observations

The changes are similar to those found on the Moon when the surface there is disturbed. The old surface is very dark. When hit by a meteorite or scrapped by an astronaut’s foot, it brightens. In the case of Comet 67P, the underlying ice pushes outward when heated, the dust is removed, and the surface gets brighter.

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Smallsat company searches for launch services

9:04 am

The competition heats up: Terra Bella, formally known as Skybox Imaging, hopes to have as many as 21 satellites in orbit by the end of 2017.

Space Systems Loral (SSL) is Terra Bella’s manufacturing partner for the SkySat satellites, building 19 SkySat Cs — one prototype and 18 final versions. Joe Rothenberg, director of Skybox engineering and operations at Google, told Via Satellite that the first SkySat C satellite is currently scheduled to launch aboard a Polar Satellite Launch Vehicle (PSLV) from the Indian Space Research Organization (ISRO) on May 31. The PSLV launch is for the prototype to precede the rest of the series. The next four are then to launch on an Arianespace Vega as a rideshare this summer, followed by six more on Orbital ATK’s Minotaur rocket during the fourth quarter this year.

The Skybox C satellite only weights 265 pounds, so it is larger than a cubesat but tiny compared to most commercial satellites. The company’s problem now is that, except for Orbital ATK’s Minotaur rocket, they don’t have a launch vehicle dedicated to this size satellite. And Minotaur is probably too expensive (which is why Orbital wants the right to use surplus ICBM motors to power it). Because of this Terra Bella must launch its satellites as secondary payloads, which leaves them at the scheduling mercy of the primary payload. Virgin Galactic’s LauncherOne is intended to serve this smallsat market, competing directly with Minotaur, but Terra Bella is understandably skeptical of that company’s effort.

A small piece of trivia. Rothenberg was a key NASA manager running the shuttle Hubble repair missions, one of the few NASA efforts that operated like a private company: competitive, hard-working, and demanding of success. It is entirely fitting that he has moved out of the government and into the private sector, where his skills can truly shine. It speaks well of Terra Bella that they hired him.

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Conscious Choice cover

Now available in hardback and paperback as well as ebook!

 

From the press release: In this ground-breaking new history of early America, historian Robert Zimmerman not only exposes the lie behind The New York Times 1619 Project that falsely claims slavery is central to the history of the United States, he also provides profound lessons about the nature of human societies, lessons important for Americans today as well as for all future settlers on Mars and elsewhere in space.

 
Conscious Choice: The origins of slavery in America and why it matters today and for our future in outer space, is a riveting page-turning story that documents how slavery slowly became pervasive in the southern British colonies of North America, colonies founded by a people and culture that not only did not allow slavery but in every way were hostile to the practice.  
Conscious Choice does more however. In telling the tragic history of the Virginia colony and the rise of slavery there, Zimmerman lays out the proper path for creating healthy societies in places like the Moon and Mars.

 

“Zimmerman’s ground-breaking history provides every future generation the basic framework for establishing new societies on other worlds. We would be wise to heed what he says.” —Robert Zubrin, founder of founder of the Mars Society.

 

All editions are available at Amazon, Barnes & Noble, and all book vendors, with the ebook priced at $5.99 before discount. All editions can also be purchased direct from the ebook publisher, ebookit, in which case you don't support the big tech companies and the author gets a bigger cut much sooner.

 

Autographed printed copies are also available at discount directly from the author (hardback $29.95; paperback $14.95; Shipping cost for either: $6.00). Just send an email to zimmerman @ nasw dot org.

North Korea can launch nuclear bombs

6:10 pm

Peace in our time! South Korean intelligence experts have concluded that North Korea now has both the rocket and miniaturized nuclear warhead capable of hitting Russian, China, Japan, and all of South Korea.

“We believe they have accomplished miniaturization of a nuclear warhead to mount it on a Rodong missile,” said the South Korean official, who has knowledge of South Korea’s assessment of the North’s nuclear program. The official spoke to a small group of reporters on condition of anonymity… The Rodong missile can fire a 1 tonne (1,100 lb) warhead a distance of up to 2,000 km (1,250 miles), the official said. That would put all of South Korea, most of Japan and parts of Russia and China in range.

But don’t worry. President Obama has eased tensions worldwide by his speech-making abilities!

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Genesis cover

On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.

 
The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.


The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
 

"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News

The supernovae that fertilized the Earth

5:45 pm

A new study has pinned down the dates of two recent supernovae that showered the Earth with the heavier elements that make life here possible.

Many mainstream articles about this story have been implying that this research has discovered the existence of supernovae near the primordial Earth. This is false. Scientists have had evidence of these early supernovae for decades, from asteroids, in isotopes on Earth, and in the existence of the Local Bubble in which the Sun is presently traveling. What this study has done is narrow the location and the time of at least two of these supernovae, a significant discovery, though not the one much of the ignorant press is pushing.

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Ariane 6 delayed by tax and legal issues

5:35 pm

In the heat of competition: Even as Airbus Safran claimed today that Ariane 6 will be price competitive with SpaceX’s Falcon 9, the company cannot begin work on the new rocket because of a turf war Arianespace and French tax collectors.

The tax issue is as follows:

Airbus and Safran had agreed that Safran would pay Airbus 800 million euros ($874 million) in cash, in addition to its rocket-engine manufacturing capability, to become a 50-50 ASL shareholder with Airbus. Airbus officials since the beginning of the year have been negotiating with French tax authorities to determine how to minimize the tax bite of the cash transfer, which industry officials could be as high as 500 million euros, leaving Airbus with a net of just 300 million euros.

Delays in the cash transfer have meant that ASL, which is expected to count 8,000 employees, has been operating with only around 400 employees. In addition, it has made it difficult for the initial ASL team to present a fixed-price Ariane 6 production proposal to the 22-nation European Space Agency, which is financing the majority of Ariane 6 development.

In addition, the merger is being reviewed by the European Commission, part of the European Union.

The commission is looking at whether Arianespace’s minority shareholders, who are Ariane 6 contractors, will be protected once Airbus Safran Launchers raises its Arianespace shareholding to 74 percent from today’s 39 percent. The commission is also reviewing concerns expressed by satellite builders that Airbus, which is a major manufacturer of commercial satellites, might give its own satellites preferential treatment in setting the Ariane 6 manufest.

Airbus Safran still insists they can get the new rocket launched by 2020, but somehow that doesn’t seem reasonable to me, especially because I expect the French and European government authorities here to carve out their piece of the action, thus making it harder for the private company to deliver on time.

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Leaving Earth cover

There are now only 3 copies left of the now out-of-print hardback of Leaving Earth. The price for an autographed copy of this rare collector's item is now $150 (plus $5 shipping).

 

To get your copy while the getting is good, please send a $155 check (which includes $5 shipping) payable to Robert Zimmerman to
 

Behind The Black, c/o Robert Zimmerman
P.O.Box 1262
Cortaro, AZ 85652

 

Leaving Earth is also available as an inexpensive ebook!

 

Leaving Earth: Space Stations, Rival Superpowers, and the Quest for Interplanetary Travel, can be purchased as an ebook everywhere for only $3.99 (before discount) at amazon, Barnes & Noble, all ebook vendors, or direct from my ebook publisher, ebookit.

 

If you buy it from ebookit you don't support the big oppressive tech companies and I get a bigger cut much sooner.

 

Winner of the 2003 Eugene M. Emme Award of the American Astronautical Society.

"Leaving Earth is one of the best and certainly the most comprehensive summary of our drive into space that I have ever read. It will be invaluable to future scholars because it will tell them how the next chapter of human history opened." -- Arthur C. Clarke

The sunspot decline continues

11:18 am

NOAA’s monthly update of the solar cycle was released today, showing the Sun’s sunspot activity in March. It is annotated and posted below.

March 2016 Solar Cycle graph

The graph above has been modified to show the predictions of the solar science community. The green curves show the community’s two original predictions from April 2007, with half the scientists predicting a very strong maximum and half predicting a weak one. The red curve is their revised May 2009 prediction.

For the fourth month in a row the change in the graph is so small you almost need a magnifying glass to see it. Despite this, the decline remains remarkably steady, tracking precisely the decline predicted by the low prediction of the 2007 predictions (indicated by the smaller green line curve).

Recently the number of sunspots has dropped enough that I suspect we are not far the moment when we will once again begin to see days where the Sun is blank of sunspots, a situation last seen in 2010 near the end of the previous solar minimum. When that happens, it will herald the beginning of the next solar minimum.

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Take-aways from Cruz’s win in Wisconsin

9:39 am

Link here. Key quote, which I think accurately predicts what will happen in the next few months:

Trump will not win 1237 delegates before the convention. The question is whether Cruz can catch him in a plurality or get close to it and win a mandate. It’s quite obvious that Trump’s victories during the first half of the race were a result of unprecedented name ID and a divided field. He would have lost most states had this been a one-on-one contest, which tells you that the majority of voters don’t want him. Thus, even if Cruz comes up short of a plurality, as long as he wins the aforementioned states, the Texas Senator will have a moral mandate when he likely wins a delegate race on the second ballot. Trump will argue that it doesn’t reflect the will of the voters, but it’s clear that 60% of voters in most states don’t want him. He only won in previous states because of Rubio, and the remaining wins come as a result of Kasich staying in the race or non-Republican voters.

The article has lots of good information and analysis. It correctly notes that if John Kasich would do the sensible and honorable thing and end his campaign now, Cruz’s path to the nomination would be significantly cleared.

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WISE completes another year of asteroid hunting

9:08 am

After being mothballed in space and then reactivated, NASA’s WISE infrared telescope (renamed NEOWISE for no good reason) has now completed its second year of observations, looking for near-Earth objects (NEOs).

NASA’s Near-Earth Object Wide-field Survey Explorer (NEOWISE) mission has released its second year of survey data. The spacecraft has now characterized a total of 439 NEOs since the mission was re-started in December 2013. Of these, 72 were new discoveries. Near-Earth Objects (NEOs) are comets and asteroids that have been nudged by the gravitational attraction of the giant planets in our solar system into orbits that allow them to enter Earth’s neighborhood. Eight of the objects discovered in the past year have been classified as potentially hazardous asteroids (PHAs), based on their size and how closely their orbits approach Earth. [emphasis mine]

Unfortunately, the press release does not provide any details about those eight potentially hazardous asteroids.

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India to test reusable mini-shuttle in May

8:56 am

The competition heats up: ISRO, India’s space agency, this week announced plans to conduct its first test flight of its half-scale prototype reusable launch vehicle in May.

The RLV, is a scaled-down prototype (some 21.3 feet in length or 6.5 meters) of a future uncrewed single-stage reusable spaceplane, known as Avatar, that is being designed by the ISRO. The May mission will be a technology demonstrator (RLV-TD) to test powered cruise flight, autonomous landing and hypersonic flight using an air-breathing propulsion system. The spacecraft, which resembles a small winged aircraft, will be launched from the first launchpad of the Satish Dhawan Space Centre to an altitude of 43 miles (70 km) atop a two-stage Rohini sounding rocket and then released. It will re-enter the atmosphere and travel back to Earth in a controlled descent, to be recovered from the Bay of Bengal. [emphasis mine]

This vehicle is kind of Inida’s version of the Air Force’s X-37B, except that it is also testing a hypersonic scramjet engine, a cutting edge design that the U.S. has barely been able to fly successfully. Should they succeed, it will place them smack dab in the middle of the elite club of space-faring nations.

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Boeing moves to block Russians from selling Sea Launch

9:21 pm

In a reaction to news that the Russians have a potential buyer for Sea Launch, Boeing has sued to block the sale.

In a motion for a preliminary injunction filed with the U.S. District Court for the Central District of California April 2, Boeing argued that a sale of Sea Launch could hinder its ability to collect on a summary judgment issued last year against Energia of at least $300 million. “If Energia succeeds in selling these assets and moving all of the proceeds thereof to Russia, without paying the hundreds of millions of dollars that it owes, it would unquestionably complicate Boeing’s collection efforts,” the company’s lawyers stated in the court filing.

Energia has refused to pay that $300 million. However, since Sea Launch’s floating launch platform remains docked in California, Boeing retains a great deal of leverage in this legal dispute. I expect the court will eventually put a lock on those assets until the Russians pay up.

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Russia denies that Proton upper stage failed after launching ExoMars

9:16 pm

At a press conference today the head of Roscosmos today countered claims that some failure had occurred after ExoMars was placed on its course to Mars.

Briefing reporters in Moscow, Igor A. Komarov reiterated statements made by Proton prime contractor Khrunichev Space Center of Moscow, saying the Breeze-M upper stage separated ExoMars without incident and then proceeded with the standard passivation and collision-avoidance maneuvers.

Komarov said he had seen photos taken from a Brazilian ground telescope that appeared to show small objects in the vicinity of the Breeze-M stage and ExoMars. “I do have these pictures, provided by the Brazilian observatory, showing the ExoMars spacecraft surrounded by some dimly illuminated objects reportedly related to the upper stage,” Komarov said.

“Telemetry and other objectively verifiable data available to us, covering the entire time from the separation and the contamination and collision avoidance maneuvers to the passivation of the upper stage, show that all these steps have been performed successfully, without any anomalies,” Komarov said. “There is absolutely no indication of an upper-stage explosion or breakup.”

The uncertainty will only be settled in the next few weeks, when engineers activate all of ExoMars instruments. Should they all be working as expected, then it will likely be that nothing had happened to the Briz-M upper stage, as Roscosmos claims. If not, then Russia has a problem, since it depends on that stage for future Proton commercial launches and will not know what went wrong here.

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TSA wastes $1.4 million

10:49 am

Government marches on! The TSA spent $1.4 million to develop software that does the exact same thing as flipping a coin.

The “randomizer” app itself cost $336,000, the rest of the funds most likely went towards iPads themselves, Rare reports. There were four bids total for the project and IBM won the project. The app’s purpose is to eliminate potential bias when a TSA agent tells passengers which line to go to. Currently on the iTunes app store, there are multiple free coin flip apps which perform the same process as the TSA’s “randomizer.”

The corruption here reeks. Shut the whole thing down, and not only would we be safer, we would each have more wealth to make our lives better.

In a related story, the Department of Homeland Security has paid almost $20 million in salaries to corrupt employees who they can’t fire, so they pay them to do nothing.

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Close encounter with a dust devil

10:14 am

dust devil near Opportunity

Cool image time! On March 31st, as the Mars rover Opportunity took an image of the tracks it left behind as it attempted to climb the steepest slope it has yet attempted, it unexpectedly captured a nearby dust devil. The image to the right is a cropped version of that image

Be sure and take a look at the original image. Not only is the dust devil clearly imaged, showing it to be intense enough that it casts a shadow, the image gives a very good sense of the steepness of that slope. It is not surprising that Opportunity had problems getting up that hill, and eventually had to retreat because it couldn’t get to its target rock formation.

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Using ICBMs to lower launch costs

10:02 am

The competition heats up: Orbital ATK is lobbying Congress to lift a ban on the use of decommissioned ICBM missiles for commercial launches.

Orbital ATK is pressing U.S. lawmakers to end a 20-year ban on using decommissioned intercontinental ballistic missiles (ICBM) for launching commercial satellites and the effort has raised concern among companies that have invested millions of dollars in potential rival rockets. Orbital Vice President Barron Beneski said in an interview on Friday that the company was pushing Washington to get the ban lifted as part of the National Defense Authorization Act that sets defense policy for fiscal 2017, which begins Oct. 1. The missiles were idled by nuclear disarmament treaties between the United States and Russia in the 1990s.

The company wants to use the solid rocket motors in the surplus missiles to increase the capability of their Minotaur 4 rocket, designed for the small satellite market. Interestingly, Virgin Galactic, who is aiming for this same smallsat market with its LaunchOne rocket, is protesting, and has even garnered the lobbying support of the industry’s trade organization..

“It’s a dangerous precedent when the government tries to inject itself in the commercial marketplace. It can be disruptive, and not for the right reasons,” Eric Stallmer, president of the Commercial Spaceflight Federation, a Washington DC-based trade organization, said in an interview on Thursday.

Orbital ATK is not asking for exclusive use, so other companies could also obtain surplus missiles for their own use. However, the ATK in Orbital ATK’s name comes from the half of the company that before the merger was an expert in using solid rockets for space. This gives Orbital an advantage here that the other companies do not have, and explains their protests.

Nonetheless, I say tough. The government should surplus these rockets, and let the competitive chips fall where they may. Anything that lowers the cost to put payloads in orbit cannot be a bad thing for the launch industry, as it will serve to increase the number of customers that industry will have and thus help to increase everyone’s sales figures.

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Misuse revealed of vomit comet at NASA

7:16 pm

It appears that, stuck with the “vomit comet” airplane that they no longer had much use for, NASA managers tried to justify its existence and budget by assigning it tasks for which it and its crew were not designed or trained to do.

The unorthodox use of the C-9 aircraft was driven, according to the complaints, by a desire at the high levels of the agency to prove the Vomit Comet was of practical use. Apparently, it didn’t work—the C-9 aircraft program was defunded and shut down in 2014.

Since 1959, NASA has used a variety of aircraft to simulate the weightlessness of space in order to train astronauts and perform basic experiments in zero gravity. From 2005 to 2014, the C-9, built in 1970, became one of NASA’s primary Vomet Comets. According to documents uncovered by Motherboard using the Freedom of Information Act (embedded at the bottom of this article) show that the Vomit Comet was used on at least two occasions for purposes other than simulating space flight, while still labeling the missions “crew training.” In 2013, the agency officially looked into having the plane reclassified to run these types of missions.

In one of these cases, the plane was flown to Greenland without the proper equipment or training for the crew, and experienced what was described by crew as “a near fatal crash.” It didn’t crash, but the crew apparently feared for their lives.

The program was shut down in 2014 with the operations handed over to private companies. Now if NASA needs to train astronauts, they simply hire these companies, which make the bulk of their money flying private missions, something NASA wasn’t allowed to do.

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Russia schedules first Vostochny launch

7:08 pm

The competition heats up: Roscosmos has scheduled April 27 as the date for the first launch from its new spaceport in Vostochny.

I do wish them luck. I don’t think the Russians will be very successful at competing in the new private launch industry that is beginning to emerge, centered as they are on Soviet-style, top-down, giant government-run organizations, but I still hope they succeed at whatever they attempt in space. As far as I am concerned, the more the merrier.

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Evanescence – Going Under

6:01 pm

An evening pause: Some modern music, to remind us that there is a culture out there that is very different than the tiny geek-oriented engineering world my readers like. In watching this very nicely produced music video, I was most struck by the vision the singer has of her audience. I wonder thus what her audience thinks of her and themselves, especially when this video has been viewed almost 70 million times.

Hat tip Wayne DeVette.

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Florida passes law outlawing theft by government

11:21 am

Good news: Florida’s Republican governor today signed a law that forbids state police from seizing any property from any citizen unless they actually arrest and charge that person with a crime.

The big deal with this particular reform is that, in most cases, Florida police will actually have to arrest and charge a person with a crime before attempting to seize and keep their money and property under the state’s asset forfeiture laws. One of the major ways asset forfeiture gets abused is that it is frequently a “civil”, not criminal, process where police and prosecutors are able to take property without even charging somebody with a crime, let alone convicting them. This is how police are, for example, able to snatch cash from cars they’ve pulled over and claim they suspect the money was going to be used for drug trafficking without actually finding any drugs.

I should also note that getting this law written and passed was spear-headed by the Republicans in Florida’s legislature, though Democrats there also supported it. I note this not to imply that Republican politicians are great, which they routinely are not, but to note that of the two parties, in recent years it has generally been the Republicans who have opposed asset forfeiture, which I like to call theft-by-government.

Sadly, the Republicans were key players in getting this kind of policy legalized in the first place.

In both cases, it is really the voters who to blame, or to be credited. When the laws were passed allowing police the right to confiscate private property, the voters cheered, thinking such actions would help stop the drug trade (which they were encouraging by buying the drugs). Politicians responded to the voters, and passed the laws, tweaking them as power-hungry politicians do to make them work to the government’s favor, not the citizens. Now, having realized how bad these laws are, the voters are electing politicians who want to remove the laws. That pressure is resulting in laws like this.

Milton Friedman explained this process quite wisely many years ago.

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Russia insures first Vostochny launch

8:40 am

In the heat of competition: Russia’s space agency Roscosmos has obtained insurance for the first launch from Vostochny, covering the rocket and the launch facilities it will use.

This story tells us more about Russia’s present circumstances than the situation at Vostochny. Normally, government space agencies self-insure. Russia, however, is having serious economic problems, and I suspect that the managers there have recognized that if this launch fails and the launchpad is damaged badly, they don’t have the cash to quickly rebuild it. Granted, the insurance itself will probably cost them a lot of money they also don’t have, but considering the significant quality control problems the Russian aerospace industry has had in recent years, combined with the corruption that has surrounded the construction at Vostochny, they are probably wise to cover themselves in the not unlikely chance that something goes wrong.

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Video of Saturday’s New Shepard flight

7:36 pm

Blue Origin has released video of its New Shepard test flight on Saturday, once again in a slick edited presentation rather than raw video of the flight itself. I have embedded this video below the fold.

As promised, the propulsion module came down at full speed until only a few seconds before impact, then fired its engines and gently slowed, then hovered, then touched down without harm. The long shot of it coming down is especially breathtaking.
» Read more

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New Shepard flies again, for the third time

1:23 pm

The competition heats up: On Saturday Blue Origin successfully launched and landed its reusable New Shepard suborbital capsule/rocket spacecraft

The vehicle lifted off from the company’s test site shortly after 11 a.m. Eastern time, according to a series of tweets by company founder Jeff Bezos. The vehicle’s propulsion module, the same one that flew earlier test flights in November and January, made a successful powered landing, he said. Its crew capsule, flying without people on board, parachuted to a safe landing. … The vehicle reached a peak altitude of nearly 103.4 kilometers, slightly above the “von Karman line” frequently used as the boundary of space and similar to previous test flights.

This flight also carried some science experiments, demonstrating that Blue Origin’s customers will not be limited merely to space tourists.

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