Year: 2015

Pluto’s meandering canyons

8:52 am

canyons of Pluto

Cool image time! In scrolling through the new raw images downloaded from New Horizons today I came across an image, one of several, that showed what clearly appeared to be meandering canyons carved by flowing liquid.

To show it here, I have cropped it and reduced its size somewhat, highlighting the most interesting features. As you can see, the largest canyon not only appears to have a dark floor, it cuts right through an older crater. Smaller canyons do the same thing. In addition, many of the craters seem to be ponded with the same dark material that floors the canyons, while some of the smaller canyons show tributaries that come together, just like rivers. Are these flows of liquid nitrogen?

I eagerly await the conclusions of the scientists, who are probably only slightly less baffled by these features as I am.

Be sure and check out the full image, as well as the other raw images. The data continue to come in from New Horizons, but the science team is no longer under the same kind of public pressure to make announcements or hold press conferences. There are gems hidden there that are worth looking at, even if they are not as yet accompanied by any scientific analysis.

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NASA to decide on 2nd cargo contracts Nov 5

9:40 am

The competition heats up: NASA will announce the two contract winners for its second round of ISS cargo contracts on November 5.

If it was up to me to pick the two winners from the four companies bidding, SpaceX, Boeing, Orbital ATK, and Sierra Nevada, I would go with Orbital ATK and Sierra Nevada. SpaceX and Boeing already have contracts to ferry crews to ISS with their Dragon and Starliner capsules. By picking Orbital ATK’s Cygnus capsule and Sierra Nevada’s Dream Chaser reusable mini-shuttle, NASA would then have four different ways to get payloads to ISS.

Sadly, the decision is not up to me. It is more likely NASA will pick SpaceX and Boeing. Boeing especially is likely to get picked because they are an established big player with lots of capital and influence.

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A detailed update on the Falcon 9 return-to-flight

9:21 am

Link here. It appears that SpaceX hopes to complete the following launches in quick order::

1. November 24: First Falcon 9 upgrade launch: 11 Orbcomm low-orbit satellites
2. December 15: Last old Falcon 9 launch: Jason 3
3. December 27: Second Falcon 9 upgrade launch: SES-9 geosynchronous communications satellite
4. Early January: Third Falcon 9 upgrade launch: Dragon and the Bigelow BEAM inflatable module to ISS

All these dates are of course subject to delays. Launches 1 and 3 will definitely attempt vertical landings of the first stage on a barge.

The main point of the article above was to note that the SpaceX is now ready to do a full thrust test firing of the first stage that will be used in the November 24 launch, doing that test at its McGregor, Texas, test facility. As noted, “All Falcon stages pass through the Texas site, allowing them to be fired up and tested for any issues prior to continuing their journey to the launch site.” The article then described one case where the testing successfully spotted an issue that was fixed prior to launch.

I think this speaks volumes about the robustness of SpaceX’s manufacturing process. Their rockets are built in one place, shipped to another for testing, and then shipped to a third for launch. And all within mere weeks. This robustness also suggests that the rocket’s first stage will be able to withstand its vertical landing and be able to be reused, as planned.

The article also provides some further insights in why the company switched the SES-9 and Orbcomm launches.

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Pluto in 3D

9:09 am

The New Horizons science team has released its first 3D image of the surface of Pluto.

You need red/blue stereo glasses to view it.

The image shows an ancient, heavily cratered region of Pluto, dotted with low hills and cut by deep fractures, which indicate extension of Pluto’s crust. Analysis of these stereo images shows that the steep fracture in the upper left of the image is about 1 mile (1.6 kilometers) deep, and the craters in the lower right part of the image are up to 1.3 miles (2.1 km) deep. Smallest visible details are about 0.4 miles (0.6 kilometers) across.

My impression of the image, using the glasses, makes me wonder if they have exaggerated the vertical depth so that it would stand out. The craters look more like pits than craters. And if they didn’t exaggerate the vertical depth, then that means that impacts on Pluto produce craters that are very different than those seen in the inner solar system.

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Mysterious piece of space junk to hit Earth

8:34 am

A piece of unidentified space junk, discovered in a long elliptical orbit going out far beyond the Moon, has been calculated to hit the Earth over the Indian Ocean on November 13.

WT1190F was detected by the Catalina Sky Survey, a program aimed at discovering asteroids and comets that swing close to Earth. At first scientists didn’t know what to make of this weird body. But they quickly computed its trajectory, after collecting more observations and unearthing 2012 and 2013 sightings from telescope archives, says independent astronomy software developer Bill Gray, who has been working to track the debris with NASA’s Jet Propulsion Laboratory in Pasadena, California.

WT1190F travels a highly elliptical orbit, swinging out twice as far as the Earth-Moon distance, Gray says. Gray’s calculations show that it will hit the Earth at 6:20 UTC, falling about 65 kilometres off the southern tip of Sri Lanka. Much if not all of it will burn up in the atmosphere, but “I would not necessarily want to be going fishing directly underneath it,” Gray says.

What makes the object interesting is that they don’t know when it was launched or how it got in the orbit it is in. It could even be something from the Apollo lunar missions.

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The coming dark ages

5:00 pm

I decided today, after one of my readers, John Harman, sent me a link to a very blunt but accurate piece describing the sad state of modern American culture, that it was necessary to explain why I had posted nothing here on Behind the Black on Thursday, even though I was home all day doing what I usually do, scanning the web for interesting stuff.

To begin, you might want to read the essay that John sent me, entitled Wimp Nation: Poised to Fall. It sums up the cultural situation quite nicely.

The United States has become a nation of weak, pampered, easily frightened, helpless milquetoasts who have never caught a fish, fired a gun, chopped a log, hitchhiked across the country, or been in a schoolyard fight. If their cat dies, they call a grief therapist. Everything frightens Americans.

Read it all.

You then might want to read this story about Hillary Clinton’s testimony and questioning on Thursday in front of the House Benghazi committee. Here too the author captures the sick intellectually dishonest nature of America’s political culture.

What we discovered is this: The White House and Clinton apparently knew that the Benghazi attack was the premeditated work of Islamic terrorists before the bodies were cold. She and the administration nevertheless proceeded to propagate a falsehood that advanced the president’s preferred political narrative just six weeks before a tightly-contested national election.

As I noted to John, Hillary Clinton’s testimony wasn’t news, it was a joke. What did we learn? She is a liar? That’s news? What was worse, as the author of the article noted, were the reporters willing to make believe this wasn’t so.

Then there are these two stories:
» Read more

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Justice Dept ends IRS investigation with no charges

1:49 pm

Working for the Democratic Party: The Obama Justice Department has decided to file no criminal charges against anyone, including Lois Lerner, in the IRS scandal.

I was going to label this a whitewash in the headline, but decided to leave that conclusion to my readers. This quote from the article however should help you decide whether it was a whitewash:

Some Republicans have questioned the validity of the probe from the beginning, after learning that one of the Justice Department lawyers assigned to the investigation was a contributor to Mr. Obama’s political campaigns. [emphasis mine]

So, Lerner and the IRS conspire with the Obama administration from 2010 to 2012 to squelch the ability of conservatives to organize and raise funds prior to the 2012 election. The result: Obama wins, and the Republicans fail to win the Senate. Afterward the Democrats shrug their shoulders, say they shouldn’t have done it, but it wasn’t really bad anyway.

The worse part will be the number of reporters and media folk who will rally to the Democrats for this corrupt use of government power to crush their political opposition.

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Obamacare still accepts fake enrollees

9:05 am

Finding out what’s in it: For the second time the GAO has been able to sign up fake enrollees to Obamacare.

The Government Accountability Office sent 10 auditors with fictitious enrollment information to the federal healthcare.gov site as well as two state-run ObamaCare exchanges, to sign up for subsidized insurance. While eight didn’t make it through the initial identity-checking process, all 10 eventually obtained coverage, even though four obviously had made up Social Security numbers that started with “000.” They all were able to keep their coverage despite filing fake follow-up documentation.

In addition, the GAO tried to sign eight more up for Medicaid coverage. Three made it through the process, and four ended up getting subsidized private coverage instead. The only one that failed was in California, which refused to sign the person up without a Social Security number.

The GAO did this also last year. Apparently, despite having a year to fix the problem, our crack government officials couldn’t do it. Not that I am surprised. Government operations are never very efficient or successful. There is no incentive to do well, as it is impossible to get fired, there is no competition, and the funds are coerced tax dollars rather than freely given by voluntary customers.

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