Cassini’s last flybys of Enceladus

2:04 pm

As Cassini approaches the end of its decade-long mission at Saturn it will begin its last series of flybys of the moon Enceladus starting October 14.

Images will arrive a day or two afterward. The last two flybys will take place in late October and then in December, with the second October flyby getting closest, only 30 miles from the surface.

Beginning next year they will shift the spacecraft’s orbit so that it can get a better look at Saturn’s poles during its last two years. In that orbit flybys of the moons cannot be done.

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New weather maps of Jupiter

1:27 pm

Using the Hubble Space Telescope astronomers have compiled a new set of maps of Jupiter, showing changes in the gas giant’s bands and spots, including the Giant Red Spot.

The scientists behind the new images took pictures of Jupiter using Hubble’s Wide Field Camera 3 over a ten-hour period and have produced two maps of the entire planet from the observations. These maps make it possible to determine the speeds of Jupiter’s winds, to identify different phenomena in its atmosphere and to track changes in its most famous features.

The new images confirm that the huge storm, which has raged on Jupiter’s surface for at least three hundred years, continues to shrink, but that it may not go out without a fight. The storm, known as the Great Red Spot, is seen here swirling at the centre of the image of the planet. It has been decreasing in size at a noticeably faster rate from year to year for some time. But now, the rate of shrinkage seems to be slowing again, even though the spot is still about 240 kilometres smaller than it was in 2014.

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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 print edition can be purchased at Amazon or any other book seller. If you want an autographed copy the price is $60 for the hardback and $45 for the paperback, plus $8 shipping for each. Go here for purchasing details. 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

Judge proposes using courts to ban global warming skepticism

10:10 am

Fascists: An international judge, speaking to a gathering of international judges, proposed last week that the world’s judges use their power to make it illegal for anyone to disagree with the religion of human-caused global warming.

The conference’s keynote speaker stated the following:

“The most important thing the courts could do,” he said, was to hold a top-level “finding of fact”, to settle these “scientific disputes” once and for all: so that it could then be made illegal for any government, corporation (or presumably individual scientist) ever to question the agreed “science” again. Furthermore, he went on, once “the scientific evidence” thus has the force of binding international law, it could be used to compel all governments to make “the emissions reductions that are needed”, including the phasing out of fossil fuels, to halt global warming in its tracks.

The worst thing about this proposal is not that he made it but that his audience of judges applauded him for it. Freedom-loving people of the world should be very afraid of the future based on this one story alone.

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Solar ramp down jumps slightly

9:56 am

My original post about NOAA’s October update to its monthly tracking of the Sun’s sunspot cycle contained an incorrect graph. For reasons I do not understand, the first graph they posted did not include the data for September, thus creating for me the illusion that little had changed in September. I am now posting the correct graph here, below the fold, with annotations to give it context.

In September numbers showed a slight jump in sunspot activity, though once again nothing so significant as to change the overall trends. Moreover, the correction doesn’t change what I wrote previously in any way: the rate of decline seems to have transitioned down from the 2009 prediction (red curve) to the 2007 weak prediction (lower green curve). This doesn’t real mean much, as the sunspot number can still vary up and down considerable before we reach solar minimum in two or three years.

» Read more

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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 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.

Neiman Marcus sells suborbital space tickets

9:25 am

The competition heats up: Flights on Worldview high altitude balloon will be offered through the Neiman Marcus Christmas catalog.

World View, the commercial balloon spaceflight company, has been included in the Neiman Marcus Christmas Book as one of ten elite Fantasy Gifts. The annual Christmas Book will include an exclusive World View package available only to ten Neiman Marcus customers. This package features the rare opportunity to be a part of a World View test flight with a behind-the-scenes invitation while enjoying luxurious accommodations at the Miraval Resort in Tucson, Ariz. Each package also includes a private tour of Biosphere 2 with original crew member and World View CEO, Jane Poynter, along with a ticket to be one of the first to see Earth from the company’s luxury pressurized capsule.

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Getting India’s first space telescope working

9:12 am

A moment of terror: During the first week of successful operation, there was an initial moment of terror when the engineers checking out Astrosat, India’s first space telescope, thought the spacecraft was unable to point at its target accurately.

During the first orbit, there was a difficulty in detecting this Crab Nebula as the satellite happened to pass through the South Atlantic Anomaly (SAA) region when Crab was in the field of view. SAA avoidance zone was deliberately kept wide to protect the instruments, and detectors were switched OFF in this interval during the initial days of Astrosat operation. When all the data were systematically analysed and data were selected based on the availability of Crab in the detector field of view, one could see the Crab emerging from Earth’s shadow (Fig 3).

Using the Crab Nebula as Astrosat’s first target, the check-out has been proceeding well, with full research operations expected to begin in the next few weeks.

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Leaving Earth cover

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

ULA picks Vulcan launchpads

9:48 pm

The competition heats up: ULA has picked the two launchpads it will use for its new Vulcan rocket.

United Launch Alliance’s next-generation Vulcan rocket will lift off from the company’s existing Atlas 5 launch facilities in Florida and California, according to the company’s Vulcan program manager. The launch pads at Cape Canaveral and Vandenberg Air Force Base will require modifications to accommodate the Vulcan booster, which is wider than the Atlas 5 rocket’s existing first stage, said Mark Peller, ULA’s Vulcan program manager, at the International Symposium for Personal and Commercial Spaceflight in Las Cruces, New Mexico.

This decision mainly outlines how ULA hopes to eventually reduce the number of launchpads it must maintain, and thus reduce its costs.

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Pentagon refuses ULA Russian engine waiver

9:37 pm

The Pentagon has denied ULA its request for a waiver to allow it to use more Russian engines in its Atlas 5 rocket than allowed by Congress.

It appears the Defense Department is in no hurry to give ULA any slack in its dependence on Russian engines, and instead seems to agree with Congress that the company should stop complaining and get around to replacing those engines as fast as possible.

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Judge rules in favor of telescope protesters

9:30 pm

A Hawaiian judge has ruled that the state’s emergency order that had forbid camping on the mountain was invalid.

The state says that it will still prohibit anyone from blocking the road, but I don’t know how they will be able to do that if a large number of protesters camp on the mountain, ready to move and block any construction vehicles trying to get to the mountaintop.

I think it is time for the makers of the Thirty Meter Telescope to consider a move out of Hawaii. I believe they will never be able to get the telescope built as planned.

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Back from a weekend underground

9:22 pm

Bob Zimmerman underground

The picture on the right will explain why I have been silent posting since Friday. I have just returned with five friends from three days of caving in New Mexico, doing some wild caving plus my first visit to Carlsbad Caverns since 1992, guided by a local caver who has been helping me with my cave survey project in Arizona.

New Mexico probably has the largest concentration of truly large and spectacularly decorated caves in the entire world. I’ve caved there previously, but this was my first trip driving from Arizona. We went to two wild caves, one of which I had never visited before and a second that I had seen during my 1992 trip. The picture shows me in the latter, standing above a large clear pool near the back of the cave with some giant flowstone speleothems all around me.

The new cave contained a room dubbed Speleogasm, because every formation there, of which there are too many to count, is completely festooned with helectites and sodastraws in a mad protrusion that no geologist can as yet explain. Nor is there any way to describe it adequately or photograph it successfully. To witness it you need to go, requiring the specialized caving skills that include the techniques and equipment required to rappel and climb a 40 foot rope.

As always, the advantages of learning how to do this successfully is the reward of seeing things that few ever see. It is why engineers and scientists strive so hard to get planetary probes to distant planets. And why humans want to travel to the planets. For me, getting inside a remote and beautifully decorated cave will just have to do.

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Increase push to get Ryan to run for House Speaker

9:41 am

The push to nominate Paul Ryan (R-Wisconsin) to run for the House Speaker position has apparently accelerated.

In all this, Ryan appears uninterested in running. My guess as to why is that he right now has a far more conservative reputation than he deserves, and becoming Speaker would reveal his moderate tendencies to everyone. He does not want this. At the same time, Ryan is more conservative than John Boehner, and would be an improvement.

Update: A Washington Post story today says that Ryan is reconsidering his opposition to running for Speaker.

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Next New Shepard test flight expected before December

9:21 am

The competition heats up: Blue Origins has revealed that the next test flight of its suborbital New Shepard capsule and launch rocket will take place before the end of 2015.

They also noted that they will not be selling any tickets for suborbital flights for at least two more years, until they are satisfied that the test flights have proven the system. This is a far cry from other suborbital companies like Virgin Galactic and XCOR, who have made big promises to garner ticket sales, and have yet to deliver. Jeff Bezos’s company has instead decided to deliver first, and then sell tickets.

In the end, we shall see who wins the race to put the first tourists into space. What is certain in all this however is that Virgin Galactic has squandered the ten-year headstart it had when it started out in 2004.

In related news, Virgin Galactic says that construction of its second SpaceShipTwo ship is progressing well.

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3D image of Comet 67P/C-G

9:06 am

Do you own red-blue 3-D glasses? Get them out and go to this link. Rosetta scientists have created a 3-D image of Comet 67P/C-G, including the jets of material shooting out from its surface.

[C]reating a 3d anaglyph of dynamic events like this is notoriously difficult: often the jets are too faint or their duration is too short to find two high-quality images taken several minutes apart that are suitable to pair together to create this type of view. However, the OSIRIS team got lucky with this particular event, capturing two images separated by about two-and-a-half minutes.

The image shows a bright, collimated jet embedded in a broader emission structure. The three dimensional perspective also reveals the conical shape of the jet and that the collimated feature is emitted towards the observer.

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Russian lunar mission delayed again

9:02 am

The Russian Luna-Glob has been delayed again, partly due to embargoes imposed by the Ukraine war, and partly due to a lack of money.

The article notes that Russia’s participation in the European ExoMars project has left little resources for this lunar mission, causing delays. It also notes the possibility that the second mission in ExoMars, scheduled for 2018, might be delayed as well. (The first ExoMars mission is scheduled to launch next year.)

All-in-all, this story indicates to me that the Russians continue to have serious underlying financial and management problems throughout their society. Having lost faith in capitalism, after 20 years of not really doing it right, they have returned to a soviet-style big government top-down approach. I doubt it will solve their problems.

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Sunlight rolled the rocks on an asteroid

8:53 am

Scientists studying the rounded rocks on the surface of the asteroid 25143 Itokawa, photographed by the Japanese probe Hayabusa, have concluded that sunlight combined with the asteroid’s tiny gravity caused them move and thus erode themselves.

As sunlight bounced off the orbiting boulders, photons provided a tiny push. As they radiated back outward as heat, they triggered a recoil effect that added a gentle spin. Over time, these slowly spinning boulders bumped into each other with enough force to wear their edges into smooth surfaces.

Warning! This is only a model, and thus could very well be wrong. It is reasonable however and worth considering as a factor in studying the early formation history of asteroids.

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Another EPA wastewater spill in Colorado

10:06 pm

We’re here to help you! EPA workers have caused another wastewater spill in Colorado.

According to the Denver Post, an EPA mine crew working Thursday at the Standard Mine in the mountains near Crested Butte, triggered another spill of some 2,000 gallons of wastewater into a nearby mountain creek. Supporting Tipton’s remarks to Watchdog Arena, the Denver Post report states that the EPA had failed to release a report about the incident at the time of its writing.

Unlike the Gold King Mine, where on Aug. 5, an EPA mine crew exploring possible clean-up options, blew out a structural plug in the mine releasing over 3 million gallons of toxic waste into the Animas River, the Standard Mine is an EPA-designated superfund site, where the federal agency has been directing ongoing clean-up efforts.

According to a the Washington Times regarding this latest spill, Tipton’s spokesman, Josh Green, said that locals in the Crested Butte area confirmed the spill. Watchdog Arena spoke directly with Tipton Thursday afternoon who claimed, “They are reporting that the spill consisted of “gray water,” and was not toxic. But the definition of gray water does not preclude the presence of possible toxic substances.”

It doesn’t matter that this spill is smaller and at a superfund site. If a private landowner screwed up like this, and didn’t report it, as required by the EPA, the EPA would move in faster than the speed of light to take everything they owned and to put them in prison.

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