The bog bodies of Europe

3:37 pm

Link here. The peat bogs preserve the bodies, providing scientists a window into the past. However, the bodies exhibit one mysterious tendency: violent death.

Since the 18th century, the peat bogs of Northern Europe have yielded hundreds of human corpses dating from as far back as 8,000 B.C. Like Tollund Man, many of these so-called bog bodies are exquisitely preserved—their skin, intestines, internal organs, nails, hair, and even the contents of their stomachs and some of their clothes left in remarkable condition. Despite their great diversity—they comprise men and women, adults and children, kings and commoners—a surprising number seem to have been violently dispatched and deliberately placed in bogs, leading some experts to conclude that the bogs served as mass graves for offed outcasts and religious sacrifices. Tollund Man, for example, had evidently been hanged.

Read it all. It is a fascinating combination of history, archeology, and forensics.

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Russia delivers to Orbital ATK the first two new Antares engines

9:15 am

Even as Orbital ATK begins to wrap up their investigation into the October launch failure of their Antares rocket, Russia delivered on July 16 the first two new replacement engines.

The RD-181 motors will be used in the first stage of the rocket. They will replace aging AJ-26 engines the company decided to stop using after one of them exploded during a launch last October. The AJ-26s are revamped NK-33 engines left over from the Soviet Union’s manned lunar program.

The first launch of the revamped Antares booster is set for next March. The rocket will carry a Cygnus cargo ship bound for the International Space Station.

Though these Russian new engines will allow Orbital to get Antares back into operation, they do limit that rocket’s marketability in the U.S.

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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, any other book seller, or direct from my ebook publisher, ebookit. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, 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

Finger Rock Fire update

8:57 am

During the night the fire seemed to subside somewhat, and today it is raining. I can still see smoke, but no flames. However, the cloudy weather, plus morning is a poor time of day to observe details in the Santa Catalinas because of the angle of the sun, means that this is not a certain observation.

The Forest Service has sent crews up to check on the situation and will report an update later this morning. This news report says nothing about the fire spreading into Ventana Canyon, as it appeared to do to me last night. Hopefully I was wrong and the fire only appeared larger than it was.

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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.

Auschwitz commandant outraged over Mengele video

10:10 pm

Heh.

Rudolph Hoess, family man and commandant of the Auschwitz-Birkenau concentration camp, has been desperately trying to restore the camp’s reputation after some damaging remarks by one of its doctors, Joseph Mengele, were caught on tape and posted online.

Dr. Mengele, who oversees medical services at the camp, was recorded casually speaking of a girl who was suffering complications as a result of HitlerCare. The girl, Eva Mozes Kor, complained of fever, trembling, and swollen limbs that resulted from a series of five free government-funded injections. Mengele is seen on the tape laughing off the matter saying, “Too bad she is so young. She has only two weeks to live.”

To Hoess, such behavior is unacceptable. “I want to be clear,” said Hoess, “that I find the tone of Dr. Mengele’s remarks inappropriate, and that he has been properly reprimanded. Furthermore, I wish to emphasize that nobody on the staff at this concentration camp in any way profits from the clothing, valuables, cash, and gold fillings that are reallocated from our guests. While some evidence, which was tragically burned, may have indicated an occasional impropriety, we nevertheless pride ourselves in offering compassionate care at this facility, no matter what.”

Read it all. His outrage at the way the video was obtained will tell you who the real villains are in this story. How dare someone slander the reputation of these fine individuals!

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Big fire in the mountains above Tucson

9:25 pm

At sunset tonight I went out into my back patio to enjoy the evening air and noticed smoke trailing off from the mountains on the opposite side of the valley. Taking a closer look with binoculars I discovered a major forest fire blazing on the front range of the Santa Catalina mountains, about a thousand feet above the city.

To give the layout, our home is on the west side of town, on a hill that overlooks the city. The Santa Catalina Mountains border the north side of Tucson, about ten miles away. (Below the fold is a short video showing the mountains and the smoke, taken today from the west side on one of the overpasses above the interstate, slightly south of my home. The video shows a view similar to what I can see.)

The fire, dubbed the Finger Rock fire after the canyon in which it started, was originally ignited by lightning last week, smoldered for a week, then re-ignited today and is spreading fast. While Diane and I watched this evening we saw the flames leap across from Pontatoc Ridge to the opposite wall of the adjacent valley, Ventana Canyon, which Diane and I last hiked in 2013. I saw flames that were easily 100 feet high.

We have hiked on Pontatoc Ridge. That trail is certainly badly damaged or destroyed. The lowest parts of the fire now appear to be burning at about 500 feet above the nearest homes in the foothills below. When it jumped into Ventana Canyon it appears to move uphill, so at the moment no one’s home is threatened. This is a very very rugged area. It will be difficult for fire crews to get there, no less work to control the blaze.

As the evening progressed and darkness set in the extent of the fire became easier to see, as the flames now stood out in the darkness through the smoke. Though the Forest Service seems sanguine about it, this is not a trivial fire. It threatens the entire front range of the Santa Catalinas, which is one of Tucson’s major recreation areas. Worse, it is close enough to the city that it poses a threat to the homes in the foothills.

Stay tuned for updates.

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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

NASA extends Russian crew ferry contract through 2019 for $490 million

8:09 pm

Lobbying Congress: Claiming that the unwillingness of Congress to fully fund its effort to build commercial manned space ferries, NASA announced today that it has extended its contract with the Russians through 2019, at a cost of $490 million.

For the next fiscal year, House Republicans have proposed allocating nearly $250 million less than the request, while Senate Republicans would offer $300 million less. If Congress doesn’t increase the allocation, Boeing and SpaceX likely will receive orders to immediately suspend all operations either next spring or summer, Bolden said. And if those orders are issued, Bolden said the existing contracts “may need to be renegotiated, likely resulting in further schedule slippage and increased cost.”

According to this article, the extension has also increased the cost per astronaut flight from $71 to $82 million.

The irony here is that I do not believe Congress’s cuts to this program have slowed SpaceX’s effort down in the slightest. I expect that, barring more flight failures or orders from NASA to stop work, they could fly their first manned Dragon flight by 2017.

Boeing however is probably dragging its feet, since it really isn’t that much interested in achieving manned flight as much as squeezing cash out of Congress. It is probably thus eagerly working with NASA in this lobbying effort.

Meanwhile, the Republican idiots in Congress are claiming — falsely — that these cuts are forced on them by sequestration. This is a lie, as they have, at the same time they have cut commercial crew, increased the budget for SLS. If they were really interested in serving the needs of the nation they would have cut SLS, which can’t accomplish anything and is a terrible waste, and sent the money to commercial crew instead.

But then, who said they were interested in serving the needs of the nation? It doesn’t appear that way to me.

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TMT protesters gather outside IAU conference in Hawaii

4:20 pm

Two quotes from the article I think clarify what is going on here. First, one of the protester signs illustrated very clearly the level of ignorance and foolishness of the protesters;

“We don’t want your big toy telescopes on our sacred mountain.”

Then there was this significant point noted in the article:

The demonstrators are a diverse group but are generally led by men and women in their twenties who were educated in modern Hawaiian-language immersion schools. Decades ago, children were beaten for speaking the language; today it is a source of cultural pride and a touchstone for Hawaii’s burgeoning sovereignty movement.

In other words, for the past few decades the public schools in Hawaii have been focused on teaching young Hawaiians to hate American culture and whites. Instead, race and ethnicity come before concepts of freedom and individual rights. How nice. (If you don’t believe me spend just a little time studying what these native peoples courses teach. I’ve seen it here in Arizona as well as in New York. They really do teach anti-Americanism and a hatred of whites.)

However, considering that Hawaii has been controlled exclusively by leftwing Democrats for decades, no one should be surprised.

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The sunspot decline continues

2:59 pm

On Monday NOAA posted its monthly update of the solar cycle, showing the Sun’s sunspot activity in July. As I have done every month since 2010, I am posting it here, below the fold, with annotations to give it context.

Sunspot counts continue to decline at a rate faster than predicted or is usual during ramp down from solar maximum. Normally the ramp down is slow and steady. This time it has so far been more precipitous. While the 2009 prediction of the solar science community (indicated by the red curve) suggests minimum will occur sometime after 2020, the actual counts suggest it will occur much sooner.

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Curiosity looks ahead at its future travels

2:17 pm

The future terrain at Mt Sharp

Cool image time! The above image is a cropped version of a full resolution image taken by Curiosity of the terrain the rover will be traveling in the coming years.

I have also enhanced the contrast slightly to bring out the details. The terrain is rugged and very diverse, from rounded buttes to rocky outcrops.

Gravel and sand ripples fill the foreground [not shown in my cropped version above], typical of terrains that Curiosity traversed to reach Mount Sharp from its landing site. Outcrops in the midfield are of two types: dust-covered, smooth bedrock that forms the base of the mountain, and sandstone ridges that shed boulders as they erode. Rounded buttes in the distance contain sulfate minerals, perhaps indicating a change in the availability of water when they formed. Some of the layering patterns on higher levels of Mount Sharp in the background are tilted at different angles than others, evidence of complicated relationships still to be deciphered.

Traversing this rugged terrain will be a challenge but it is necessary to obtain data that will help decipher its origins. The immediate goal will be to reach the light brown terrain in the distance. In the full image, that region gently slopes upward to the left to the mountain summit, providing a route to the rover’s eventual goal.

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Texas government officials kidnap 11 children illegally from parents

9:29 am

Fascists: Because of a single false report to Child Protection Services (CPS), government officials illegally kidnapped the eleven children from their parents, and are now imposing their rule on the family.

The mother was in the hospital for three days being treated for pancreatitis. During that time period, her husband came to visit twice, bringing their youngest baby with him while leaving the remaining kids under the care of the oldest kids, 16, 14, and 12 years old, a perfectly reasonable thing to do. Members of a church the family formerly attended reported this to CPS. CPS then lied to a visiting judge, claiming the children had been left alone for three days, in order to get the court order to remove them. Moreover,

The order for the removal of the children was signed by visiting Judge Curt Henderson, while the sitting judge was on vacation. The sitting judge had reportedly previously denied the removal. According to protocols, the visiting judge reportedly should not have signed the emergency removal order without notifying the parents’ attorneys first. The apparent violation is believed to be the reason that the children were returned home.

In addition, they now have less than a week to find a new place to live.

They also have to find a house to move to, and move, by August 8, because a police officer who accompanied the social worker decided to phone the Rembis’ landlord and allegedly accused them of violating their lease. They received the eviction notice the day after the children were seized. When no lease violations were found, the landlord reportedly decided not to renew their lease. They still have to move. [emphasis mine]

Worse, even though the removal was illegal, CPS now has its claws in the family. If the parents do not do exactly as the government demands it will then steal the children again, and will be in a better position to make that removal stick.

Read the whole story. It will make you ill.

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Airbus patents design for a supersonic ramjet airplane

8:55 am

The competition heats up: Two Airbus engineers have gotten a patent for a supersonic jet that would use suborbital space engineering, including hydrogen-oxygen engines as well as a ramjet, to fly at 20 to 30 miles elevation.

On a typical flight, it would take off like a conventional plane using ordinary turbojet engines, but once in the air, an open door in the stern of the plane reveals a rocket motor. When this fires, it sends the aircraft into a near vertical trajectory, accelerating it to supersonic speeds.

As the airplane approaches Mach one, the turbojets shut down and retract into the fuselage. On completion of the acceleration phase the plane is now flying at anywhere from Mach 4 to Mach 4.5 at an altitude of 30,000 to 35,000 m (100,000 to 150,000 ft). The rocket motor shuts down and is again concealed as the aft door slides shut to reduce drag. A ramjet now kicks in and the aircraft cruises along its flight path and can cover a range of 9,000 km (5,600 mi) in three hours – the equivalent of Tokyo to Los Angeles or Paris to San Francisco. Meanwhile, the wing fuselage design dissipates the sonic shock wave over 110 to 175 km (68 to 109 mi) and angles it at 11 to 15 degrees so it doesn’t reach the ground. At the end of the journey, split flaps reduce speed and the turbojets take over for approach and landing.

As the article notes, it is unlikely this jet will ever be built, as patented. The patent however illustrates the growing interest by commercial operators of these radical aerospace designs. While this specific design might never fly, many aspects of it are going to start appearing in flying ships in the next few decades.

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Solar panels more climate damaging than coal

9:02 am

Surprise, surprise! A comparison of the entire production process for both solar and coal power has found that solar power is more damaging to the environment and the climate.

Not only does the production, transport, and use of solar panels dump more total CO2 into the atmosphere than coal power plants, the manufacture of the solar panels adds many more toxic chemicals to the environment than coal.

According to Ferroni, the other huge drawback presented by PV systems are the nasty chemicals and industrial gases used for their manufacture. The production of solar panels in China entails nitrogen trifluoride (NF3) and sulfur hexafluoride (SF6), which are extremely potent heat-trapping gases that leak out during the process. NF3 has a greenhouse gas potency that is 16,600 times greater than CO2; SF6 is 23,900 times more potent. Reports show that these gases emitted annually into the atmosphere from the manufacture of solar panels is equivalent to over 70 million tonnes of CO2 in terms of greenhouse effect. In 2010 over 17.5 GW of rated capacity of solar cells were installed. Thus the emissions per square meter of solar panels comes out to be 513 kg CO2 – a huge amount!

The manufacture of solar cells also uses other chemicals like (HCl), silizium carbide, and silver among others. The total alleged warming potential of these chemicals comes out to be an estimated 30 kg CO2 per square meter of PV module. Oddly (likely to avoid embarrassment) the solar industry has yet to release any detailed data on the warming potential and impacts of the chemicals used in their manufacture.

But President Obama tells us solar power is good! It must be true!

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Orion might not be ready for 2018 test flight

8:42 am

Government in action! Last week NASA admitted that the Orion capsule and its service module might not be ready for its 2018 test flight.

Bill Gerstenmaier, head of NASA’s human spaceflight directorate, told members of the [NASA Advisory Council’s human exploration] subcommittee the Orion capsule’s European-made service module, which is being developed by Airbus Defense and Space, will probably be the last piece of the critical test flight to be ready for launch.

NASA and ESA officials, together with contractors from Orion-builder Lockheed Martin and Airbus, have discussed shipping the Orion service module from Europe to NASA’s Kennedy Space Center in Florida before it is finished. European engineers could travel to the Florida spaceport to complete construction of the service module before its integration with the Orion crew capsule, which is to be assembled by Lockheed Martin at KSC’s Armstrong Operations and Checkout Building.

Engineers plan to introduce changes to the Orion crew module after a successful orbital test flight in December 2014. The upgrades include a switch from a monolithic heat shield made of ablative Avcoat material to blocks of Avcoat, a change intended to improve the manufacturability of the thermal protection system. [emphasis mine]

I have highlighted the last paragraph above because it is written to give the false impression that the decision to change the heat shield resulted from the December 2014 test flight. The truth is that NASA had already decided to change heat shields before the test flight. Why NASA engineers are still “planning” to introduce these changes illustrates why government operations are absurdly wasteful.

Orion was first proposed by President George Bush in 2004. The first Orion contract was awarded in 2006. It is now a decade later, and NASA is suddenly warning us that they might not get a single capsule and service module built by 2018, 12 years after construction began. During that time they have spent approximately a billion dollars per year on Orion. For what?

Kennedy proposed going to the Moon in 1961. Eight years later Americans were walking there. Pearl Harbor was attacked on December 7, 1941. The U.S. completed the total defeat of Germany, Italy, and Japan in slightly more than three years, by the spring of 1945.

Today’s NASA however can’t get a single capsule and service module built in 12 years. The contrast is striking. Anyone with the slightest bit of common sense would say that with a track record like this, this program should be shut down now.

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NASA considers offering SLS for commercial payloads

9:13 am

Squelching the competition: NASA is pushing to redesign its expensive and giant Space Launch System (SLS) rocket so that it can be used to launch commercial, military, and scientific payloads as well as proposed manned exploration missions.

At the moment, SLS has no planned payloads or funded flights past its second test flight in 2021. The system is very expensive, however, and the only way other customers could afford it would be if NASA charges them far less than the actual cost to fly. In such circumstances, NASA would essentially be subsidizing SLS so that it could compete, even undercut, private commercial rockets that actually cost far less.

If NASA does this, they could very well squelch the emerging private commercial launch industry.

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Republican leaders find support for Boehner’s speakership very weak in House

10:57 pm

Whoa! The Republican leadership tried prior to the August recess to squelch an effort to oust Speaker John Boehner and discovered they did not have the votes.

House Speaker Rep. John Boehner (R-OH) had been planning to call up on the House floor last week a measure from Rep. Mark Meadows (R-NC) that would have removed him as Speaker of the House if it succeeded—intending to embarrass Meadows—but abandoned the plan after his entire leadership structure learned that they did not have the votes to re-elect him as Speaker before the August recess.

Though a lot of the information in the article is about complicated House rules issues, what some call “inside baseball” and quite boring, it is very much worth reading because it indicates strongly that John Boehner’s position as Speaker is very exposed. He could very well be ousted when Congress reconvenes in September.

There are 25 members who voted for a Republican alternative at the beginning of this Congress, and now there are plenty more who are disaffected with the tactics of Boehner and his allies in leadership. More members, those who want to replace Boehner suspect, will, over the course of the month of August, come out publicly against Boehner at town hall events and in interviews with media. Unless Democrats bail Boehner out in September or October, if and when such a vote for the speakership would occur, by that point there would be enough members opposed to Boehner’s re-election for him to lose his position.

Even if Boehner survives, the dynamics here suggest that the conservatives have the stronger hand, and are going to try to force him to cater to their desires — something he has not been interested in doing — or face removal.

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Twenty arrested for blocking trucks to different mountain telescope in Hawaii

10:23 pm

Twenty protesters were arrested on Friday trying to block trucks leaving for the summit of Haleakala on the island of Maui, as part of the work building the new Daniel K. Inouye Solar Telescope there.

This protest did not involve Mauna Kea. It suggests that the hostility to astronomy and outsiders on Hawaii is growing. It also suggests to me that maybe astronomers and outsiders should consider going somewhere else for their research and tourism. Let’s find out how happy these Hawaiian protesters will be if the money these industries bring to their island disappears.

Another article notes that seven others were arrested on Mauna Kea as well. It thus appears that the Hawaiian government is finally moving to enforce the law there.

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New Ebola vaccine 100% successful in trial

10:06 am

Using a different experimental approach aimed not only to test a new vaccine but also to stem an Ebola outbreak, scientists have found the new vaccine is 100% successful in providing exposed individuals protection from the virus.

Rather than create a complicated time-consuming trial with a control group getting a placebo — which also allows the epidemic to rage undisturbed — they focused on a different approach:

The Guinea trial — called ‘Ebola, ça suffit’ in French (‘Ebola, that’s enough’) — tested a ring vaccination design, a strategy that was borrowed from successful smallpox eradication efforts in the 1970s. After one patient contracts the disease, their close contacts are vaccinated in the hope of stemming the onward spread of the virus.

The Guinea trial included two arms: one in which adults who had been in contact with someone infected with Ebola and their subsequent contacts were vaccinated shortly after the original patient developed Ebola, and a second in which contacts instead received the vaccine three weeks later. The trial tested a vaccine called rVSV-ZEBOV, which is composed of an attenuated livestock virus engineered to produce an Ebola protein. The vaccine was developed by the Public Health Agency of Canada and then licensed to the drug companies NewLink Genetics and Merck.

Of the 2,014 people who received the vaccine immediately as part of the first arm, none developed Ebola ten days after getting the vaccine. The 10-day window allows the vaccine to summon an immune response and accounts for any pre-existing Ebola infection. (A few people in the immediate vaccination group, however, did develop the disease between 1 and 10 days after vaccination.) That compares with 16 infections among the 2,380 people in the second arm.

The findings mean that the vaccine provided 100% protection from the virus.

The results bring hope that Ebola is now a defeated virus.

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Alan Stern gives the IAU a piece of his mind

9:39 am

New Horizons’ principle investigator yesterday told the International Astronomical Union what he thinks of their definition of a planet:

“It’s bulls—,” he told Tech Insider (and said we could quote him on that).

The problem, Stern said, is that the reclassification largely stemmed from the opinions of astronomers, not planetary scientists. His beef here is that astronomers study a large variety of celestial objects and cosmic phenomena, while planetary scientists focus solely on planets, moons, and planetary systems.

“Why would you listen to an astronomer about a planet?” Stern said. He compared it to going to a podiatrist for brain surgery instead of a brain surgeon. “Even though they’re both doctors, they have different expertise,” Stern said. “You really should listen to planetary scientists that know something about this subject. When we look at an object like Pluto, we don’t know what else to call it.”

Stern’s opinion is not unique among planetary scientists. I have interviewed many, and read reports by others, which consistently say that they object strongly to the IAU’s definition. To them, if a object has enough mass to force it into a sphercial shape, it is a planet.

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Philae results published

9:32 am

Cool image time! The Philae science team yesterday published in Science a set of papers describing their results from the lander’s approach and bouncing landing on Comet 67P/C-G.

Data were obtained during the lander’s seven-hour descent to its first touchdown at the Agilkia landing site, which then triggered the start of a sequence of predefined experiments. But shortly after touchdown, it became apparent that Philae had rebounded and so a number of measurements were carried out as the lander took flight for an additional two hours some 100 m above the comet, before finally landing at Abydos.

Some 80% of the first science sequence was completed in the 64 hours following separation before Philae fell into hibernation, with the unexpected bonus that data were ultimately collected at more than one location, allowing comparisons between the touchdown sites.

The images from lander so far released show the approach to the first site, with one boulder getting larger and larger as it descends, followed by images at the final landing site, showing a fractured, uneven, and very rough surface with the lander apparently sitting sideways with one foot off the ground.

An animation of the first touchdown, created by these images, can be viewed here.

Update: A good summary of the results can be read here.

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The supernova of 1987 finally begins to fade

7:32 pm

Almost thirty years after Supernova 1987a became the first naked eye supernova since the invention of the telescope, the necklace ring of spots that the explosion’s shockwave ignited in the late 1990s are finally beginning to fade.

But now the hotspots have slowly begun to fade, Claes Fransson (Stockholm University, Sweden) and colleagues report in the June 10th Astrophysical Journal Letters. The team studied images taken by the Hubble Space Telescope from 1994 to 2014, and spectra from the Very Large Telescope spanning 2000 to 2013. Based on the rate at which the hotspots are fading, the researchers predict the glittering necklace will fade away sometime between 2020 and 2030, with the calculations favoring closer to 2020. The clumps of gas in the central ring are likely dissolving, thanks to a combination of instabilities and conduction in the hot gas surrounding the clumps. In other words, the central ring is being destroyed.

The show really isn’t over. The aftermath of a star exploding goes on for thousands of years. So to will SN1987a’s show.

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