Author: Robert Zimmerman

Juno’s closest Jupiter fly-by

6:21 pm

Jupiter by Juno

Juno today successfully completed its first and closest fly-by of Jupiter during its primary mission, zipping only 2,600 miles above the gas giant’s cloud tops.

We are getting some intriguing early data returns as we speak,” said Scott Bolton, principal investigator of Juno from the Southwest Research Institute in San Antonio. “It will take days for all the science data collected during the flyby to be downlinked and even more to begin to comprehend what Juno and Jupiter are trying to tell us.”

While results from the spacecraft’s suite of instruments will be released down the road, a handful of images from Juno’s visible light imager — JunoCam — are expected to be released the next couple of weeks. Those images will include the highest-resolution views of the Jovian atmosphere and the first glimpse of Jupiter’s north and south poles. “We are in an orbit nobody has ever been in before, and these images give us a whole new perspective on this gas-giant world,” said Bolton.

The image to the right, cropped and reduced in resolution to show here, was taken today when the spacecraft was still 437,000 miles away.

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Justin Hayward – Forever Autumn

6:01 pm

An evening pause: This song, sung mostly by Justin Hayward of the Moody Blues, was written by Jeff Wayne and is performed here as part of his musical concert of H.G. Wells’ War of the Worlds. And yes, that is Richard Burton’s voice for the narrator.

Hat tip Wayne DeVette.

As always, I am looking for more suggestions for future evening pauses from my readers. If there’s something entertaining that you think will fit, comment here (without giving the link to the piece), and I will email you!

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Changes on Comet 67P/C-G

9:24 am

Cool image time! Below the fold are two images taken by Rosetta of the smooth boulder-strewn area on Comet 67P/C-G called Imhotep, which has been featured many times by the Rosetta science team. The image on the left was taken October 26, 2014 soon after the spacecraft’s arrival at the comet. The image on the right was taken August 17, 2016, almost two years later after it had completed its close approach to the Sun. With both images I have cropped them and reduced their resolution to fit here. With the more recent image I have also stretched it horizontally to better match it to the older image.

The point? The giant boulders on this smooth region act as markers so that we can more easily compare the region and see how it has changed with time. The newer image clearly shows a loss of material from the surface, with the depressions in the smooth areas having grown much larger and in some areas much deeper. At the same time, there has been a softening in some of the edges between the lower and higher areas, especially in the middle of the smooth region.

What will happen here in the future? It appears that the smooth area is actually pond of dust that is slowly evaporating away with each close approach to the Sun, leaving behind the solid bedrock pinnacles within it that only appear as boulders because they are mostly buried. Eventually, when the dust is gone, some of those pinnacles will break away as well.
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Starliner and Orion drop tests

8:31 am

The competition heats up: NASA and Boeing have begun drop tests on land and water respectively of their Orion and Starliner manned capsules.

Both sets of tests are taking place at Langley. With Orion they are dropping the mockup in water to test how it will respond to a variety of circumstances. With Starliner they have finished the water drop tests and have begun drop tests on land.

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The Earth’s shifting waters

10:38 pm

Using satellite data gathered over the past 30 years scientists have now mapped the changes from water to land and land to water across the Earth’s land surface.

Two quotes from this article illustrate once again the incredible uncertainty of climate science. First in the continental interiors they saw an overall increase in land.

They found that 115,000 sq km (44,000 sq miles) of land is now covered in water and 173,000 sq km (67,000 sq miles) of water has now become land. The largest increase in water has been on the Tibetan Plateau, while the Aral Sea has been the biggest conversion of water to land.

More significant, however, was the changes on the continental coasts.

Coastal areas were also analysed, and to the scientists surprise, coastlines had gained more land – 33,700 sq km (13,000 sq miles) – than they had been lost to water (20,100 sq km or 7,800 sq miles). “We expected that the coast would start to retreat due to sea level rise, but the most surprising thing is that the coasts are growing all over the world,” said Dr Baart.”We’re were able to create more land than sea level rise was taking.”

The researchers said Dubai’s coast had been significantly extended, with the creation of new islands to house luxury resorts. “China has also reconstructed their whole coast from the Yellow Sea all the way down to Hong Kong,” sid Dr Baart[emphasis mine]

I suspect that a careful analysis of this data will show that most of these changes have little to do with climate change. However, the fact that human activity has actually increased the amount of land on the coasts despite the slow rise in sea level suggests once again that climate change is not the serious threat it is often made up to be. As a friend of mine once noted, “We’re not going to stand on the beach for decades and let the ocean drown us.” The change is slow enough that the human ability to adapt will easily outstrip it.

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Federal debt to rise to $28 trillion

9:42 am

What, me worry? A new Congressional Budget Office report today predicts the federal debt will grow to $28 trillion in the next decade.

Government spending is projected to increase by 5 percent, or $178 billion, while government revenue is projected to increase by less than 1 percent, or $26 billion. The rise in government spending is attributed to a 6 percent increase in outlays for Social Security and Medicare, a 1 percent increase in discretionary spending, and an 11 percent increase in net interest.

With the American people apparently favoring candidates who want to increase that debt, I suspect this prediction is seriously understated.

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The November Democratic primary expands!

9:35 am

Gary Johnson, the Libertarian Party candidate for president, has now announced his support for a carbon tax, this following earlier positions that rejected religious liberty and endorsed gun control.

Read the story at the link. It is very clear that libertarian principles have little to do with Johnson’s campaign. He is running as a moderate liberal, through and through.

Adding the Green Party candidate Jill Stein we now have four liberal Democrats running for President, with two (Clinton and Stein) occupying the communist wing of the party and two (Trump and Johnson) occupying the moderate liberal wing of the party . O joy!

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A university declares its stand for freedom

9:26 am

Good news: The University of Chicago has issued a letter that it is distributing to all incoming students that bluntly tells them it does not care if they are offended by some speech and will instead support the speaker’s free speech.

“Our commitment to academic freedom means that we do not support so-called ‘trigger warnings,’ we do not cancel invited speakers because their topics might prove controversial, and we do not condone the creation of intellectual ‘safe spaces’ where individuals can retreat from ideas and perspectives at odds with their own,” reads the letter from Dean of Students Jay Ellison.

You can read the full letter at the link. Whether this will translate into freedom of speech for both liberal and conservative speakers remains to be seen. This college has had several incidents recently where protesters prevented speakers from speaking. The university’s response was to refuse to discipline the protesters for their disruptions, thus allowing the heckler’s veto to win.

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More details about Proxima Centauri’s Earthlike exoplanet

8:50 am

Link here. Lots of background into the discovery itself, but I think these paragraphs really sum things up:

“The search for life starts now,” says Guillem Anglada-Escudé, an astronomer at Queen Mary University of London and leader of the team that made the discovery.

Humanity’s first chance to explore this nearby world may come from the recently announced Breakthrough Starshot initiative, which plans to build fleets of tiny laser-propelled interstellar probes in the coming decades. Travelling at 20% of the speed of light, they would take about 20 years to cover the 1.3 parsecs from Earth to Proxima Centauri.

Proxima’s planet is at least 1.3 times the mass of Earth. The planet orbits its red-dwarf star — much smaller and dimmer than the Sun — every 11.2 days. “If you tried to pick the type of planet you’d most want around the type of star you’d most want, it would be this,” says David Kipping, an astronomer at Columbia University in New York City. “It’s thrilling.”

The human race now has a real interstellar target to aim for. Don’t be surprised if we get there sooner than anyone predicts.

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Rosetta photographs outburst on Comet 67P/C-G

8:35 am

The Rosetta science team today released data and images of a February 19, 2016 outburst on Comet 67P/C-G that the spacecraft was able to photograph, as it happened.

A strong brightening of the comet’s dusty coma was seen by the OSIRIS wide-angle camera at 09:40 GMT, developing in a region of the comet that was initially in shadow. Over the next two hours, Rosetta recorded outburst signatures that exceeded background levels in some instruments by factors of up to a hundred. For example, between about 10:00–11:00 GMT, ALICE saw the ultraviolet brightness of the sunlight reflected by the nucleus and the emitted dust increase by a factor of six, while ROSINA and RPC detected a significant increase in gas and plasma, respectively, around the spacecraft, by a factor of 1.5–2.5.

In addition, MIRO recorded a 30ºC rise in temperature of the surrounding gas. Shortly after, Rosetta was blasted by dust: GIADA recorded a maximum hit count at around 11:15 GMT. Almost 200 particles were detected in the following three hours, compared with a typical rate of 3–10 collected on other days in the same month.

Be sure an look at the animated gif at the link.

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Chinese company agrees to buy Israeli satellite company

11:41 pm

Wheels within wheels: A Chinese company, managed by a Luxembourg company that in turn delegates management of its satellites to an Israeli-based company, has made a deal to purchase Spacecom, a different Israeli company that operates and owns the Amos fleet of communications satellites.

Observers said the deal could meet up with opposition from regulators, including the Communications Ministry. But Pollack said the transaction would be done in accordance with Spacecom’s license terms, which require the satellites be operated from Israel and that the company remain Israeli. The sale would put Spacecom under the direct control of an Israeli-domiciled company called Big Bird, which is managed by Major General (Res.) Ami Shafran, a former head of the Israel Defense Forces communications branch. Big Bird is 100%-owned by a Luxembourg company, which in turn is owned by Beijing Xinwei.

To say this financial deal is complicated is to understate the situation. Though it appears most everyone here is probably focused on making money, if I was Israeli I would be somewhat concerned that ownership of these crucial communications satellites is now going to be outside the country.

I also note the presence of Luxembourg in this space deal, illustrating again that this small European country is very much a big player in the commercial space industry.

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Baltimore to ignore behavior and homework in school grading

11:19 am

The coming dark age: The Baltimore school system this week revealed that it is ordering its teachers to ignore student behavior and not count homework in determining school grades. Worse,

The school system also now recommends that teachers do not factor homework into overall grades or give students marks below 50%. Community Superintendent for Zone 2 George Roberts says low marks can damage a student’s feeling of self-potential. “The power of the zero is extremely powerful and frankly hurtful to a student,” Roberts said. “If a child gets a zero on an assignment, it’s that much harder for the child to come out of.” [emphasis mine]

What Baltimore and America is instead going to get is badly behaved students who simply don’t know anything. Seems to me that it is time to get those kids out of these public schools and to shut them down, since they a waste of money and are doing real harm to children.

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“Our projections were completely wrong.”

11:09 am

The uncertainty of science: Despite predictions that global warming would destroy the world’s coral reefs, scientists as well as divers who visit the reefs regularly have found that they are instead thriving, with almost no damage.

[R]ecent research has shown some coral reefs are coming back to life much more quickly than scientists believed possible. Scientists found Coral Castles teeming with life during a 2015 dive, despite declaring the reef dead 13 years ago. “Everything looked just magnificent,” said Jan Witting, the dive’s lead scientist who works at the Sea Education Association, told The New York Times. “Last year, the whole place was holding its breath,” Witting said. “The whole ocean’s in bloom this year.”

Rangiroa lagoon in French Polynesia had rebounded just 15 years after being devastated by the incredibly strong 1998 El Nino warming event. “Our projections were completely wrong,” marine biologist Peter Mumby told BBC News in 2014. “Sometimes it is really nice to be proven wrong as a scientist, and this was a perfect example of that.”

These bad predictions, some as recently as April 2016, not only were not based on facts, they did serious harm to the tourist industry and the people who depend on it.

“Scientists had written off that entire northern section as a complete white-out,’’ Chris Eade, owner of the diving boat Spirit Of Freedom, told The Courier-Mail in an interview. “We expected the worst,” Eade said. “But it is tremendous condition, most of it is pristine, the rest is in full recovery. It shows the resilience of the reef.”

Eade said dire predictions about the demise of the Great Barrier Reef has hurt tourism businesses — a $5 billion industry. He’s particularly angry with scientists who estimated bleaching had hurt 93 percent of the Great Barrier Reef, mostly concentrated in the northern half. “Between 60 and 100 percent of corals are severely bleached on 316 reefs, nearly all in the northern half of the Reef,” Terry Hughes, the lead coral reef scientist at Australia’s James Cook University, said in April. Hughes’ research was based on aerial surveys of 911 reefs, and found 316 reefs were “severely bleached.” But that’s not what Eade and other reef tourist operators have observed taking people out for daily dives. [emphasis mine]

In other words, the scientist really didn’t look at the reefs. Instead, he took a quick distant survey and declared disaster, probably to promote the agenda of global warming.

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Earthlike exoplanet discovered orbiting the nearest star

10:54 am

Worlds without end: An Earthlike exoplanet has been discovered in the habitable zone and orbiting Proxima Centauri, the nearest star to the Sun.

The CBC/AP story above doesn’t give many details, mainly because this story is breaking the Thursday embargo, when the actual science paper will be released. Expect a lot more news stories then about this, which probably ranks as one of the biggest science discoveries in history.

Since the embargo is broken, here are some facts from one of the press releases:

The planet, called Proxima b, orbits its parent star every 11 days and has a temperature suitable for liquid water to exist on its surface. This rocky world is a little more massive than the Earth, and is the closest planet outside our solar system. Planets around other stars are commonly referred to as exoplanets.

…Although Proxima b orbits much closer to its star than Mercury does to the Sun in the solar system, the star itself is far fainter than the sun. As a result Proxima b lies well within the habitable zone around the star and has an estimated surface temperature that would allow the presence of liquid water. Despite the temperate orbit of Proxima b, the conditions on the surface may be strongly affected by the ultraviolet and X-ray flares from the star — these would be far more intense than those the Earth experiences from the Sun.

They first had a hint of the planet’s existence in 2013 (which explains the unsourced rumors I’ve heard periodcally in the past few years about a exoplanet around Proxima Centauri) and spent the past two-plus years making absolutely sure they understood their data.

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Obamacare in Tennessee near collapse

9:47 am

Finding out what’s in it: Faced with closure of all of its Obamacare health insurance options, officials in Tennessee have been forced to approve rate increases ranging from 44 to 62 percent.

The rate approvals, while a tough decision, were necessary to ensure that consumers around the state had options when open enrollment begins in November, said Julie Mix McPeak, commissioner of the Tennessee Department of Commerce and Insurance. BlueCross BlueShield of Tennessee is the only insurer to sell statewide and there was the possibility that Cigna and Humana would reduce their footprints or leave the market altogether.

“I would characterize the exchange market in Tennessee as very near collapse … and that all of our efforts are really focused on making sure we have as many writers in the areas as possible, knowing that might be one. I’m doing everything I can to prevent a situation where that turns to zero,” McPeak said to The Tennessean. [emphasis mine]

Anyone with any brains (such as the conservatives who predicted in 2010 that this would happen) can see that with these ungodly increases, it is very unlikely that those same insurance options will survive through next year. Be prepared for the complete collapse of the health insurance industry.

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New York college offers class called “StopWhitePeople2k16.”

9:30 am

Bigoted academia: The State University of New York in Binghamton is now offering a training class for its residential assistants focused on showing how to “StopWhitePeople”.

The course description essentially equates these evil “White People” with “uneducated people.”

“The premise of this session is to help others take the next step in understanding diversity, privilege, and the society we function within,” the class description says. “Learning about these topics is a good first step, but when encountered with ‘good’ arguments from uneducated people, how do you respond? This open discussion will give attendees the tools to do so, and hopefully expand upon what they may already know.”

You can see a picture of the course description here.

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Another balanced rock!

9:16 am

A new balanced rock

Cool image time! The image to the right, cropped to show here, was taken by Curiosity’s mast camera this week as it surveys the upcoming terrain so that scientists can choose its route. It shows another balanced rock that is far more unbalanced than the one the rover passed last week.

In reviewing the survey images, I am not exactly sure whether this rock is located along Curiosity’s future route, as I have not been able to locate it in any of the panorama images the rover has taken. If it is in the gap they are aiming for, then we shall soon see some additional close-ups. If not, then we will have to content ourselves with some other views that, when you think about it, are really just as good.

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A visit to OSIRIS-Rex clean room

8:56 am

NASA recently gave a press tour of the clean room where the asteroid probe OSIRIS-Rex is being prepped for its September 8 launch, and one reporter from that tour wrote a very nice description of what it was like.

After such a tour, most reporters write up stories that describe the spaceship, its mission, and its status. This reporter however did something better. He wrote up what it’s like to enter a clean room for a mission only weeks from launch.

Our belongings have been lined up in a row alongside us. And then the dog arrives.

It’s a beautiful specimen of a german shepherd, long and enthusiastic, being led by a sturdy military-type with a buzzcut wearing what looks like mercenary gear. The dog is led down the row of belongings once. Then twice. Then he and his owner head back to their truck and drive off. We have passed. We are free to go into the blessed blast of cool air on the bus that’s been idling alongside us for what seems like hours, but has really only been about 15 minutes.

And that’s only the start. Read it all. Quite fascinating.

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Virgin Galactic, an expert in diversity!

8:48 am

Private vaporware: Virgin Galactic can’t seem to get its SpaceShipTwo off the ground but, darn it, the company, in partnership with the International Symposium for Personal and Commercial Spaceflight (ISPCS), sure can run a diversity workshop!

While charging each attendee $500 for the privilege! This quote from the link above illustrates where Virgin Galactic appears to be placing its focus:

Virgin Galactic’s Executive Vice President of Spaceport and Program Development, Jonathan Firth, recently spoke to us about the industry’s need to expand behaviours and devise new ways to embrace a more diverse and inclusive workforce. “Presently only 16 per cent of the space industry workforce are female. In order to strengthen our industry and our chances of achieving great things long term we need to change this. We need to refocus on how crucial it is that we, as a company, an industry, a planet, are proactively encouraging a wide ranging of workforce from all walks of life, geographical locations, academia, gender and race. We’re sure that the event will share some incredibly informative and surprising truths about why some teams thrive and others falter,” said Jonathan.

Then there’s this quote from this news report about the workshop:

Lastly, Virgin Galactic and the ISPCS ask the public to consider “What does success look like, without self at the center?”

To me, success for a space tourism company is flying its ships and passengers in space, not spending its time focusing on the race and gender of its employees. So far, it appears that Virgin Galactic does not yet understand this.

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Fossilized rivers on Mars

8:17 am

The uncertainty of science: Using high resolution images from Mars Reconnaissance Orbiter scientists have identified more than 10,000 miles of fossilized rivers on Mars.

The new study examined images covering an area roughly the size of Brazil at a much higher resolution than was previously possible – six metres per pixel compared to 100 metres per pixel. While a few valleys were identified, the team revealed the existence of many systems of fossilised riverbeds which are visible as inverted channels spread across the Arabia Terra plain.

The inverted channels are similar to those found elsewhere on Mars and Earth. They are made of sand and gravel deposited by a river and when the river becomes dry, the channels are left upstanding as the surrounding material erodes. On Earth, inverted channels often occur in dry, desert environments like Oman, Egypt, or Utah, where erosion rates are low – in most other environments, the channels are worn away before they can become inverted. “The networks of inverted channels in Arabia Terra are about 30m high and up to 1–2km wide, so we think they are probably the remains of giant rivers that flowed billions of years ago. Arabia Terra was essentially one massive flood plain bordering the highlands and lowlands of Mars. We think the rivers were active 3.9–3.7 billion years ago, but gradually dried up before being rapidly buried and protected for billions of years, potentially preserving any ancient biological material that might have been present,” added Joel Davis.

These geological forms are different than most of the more well-known Martian channels in that they are not channels but meandering riverlike ridges, higher than the surrounding terrain. Arabia Terra, where they are located, is a transition region in the northern mid-latitudes between Mars’s southern highlands and its northern flat plains, where some believe an ocean once existed.

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North Korea fires a ballistic missile from submarine

12:08 am

North Korea today successfully launched a ballistic missile from a submarine, landing it within Japanese waters.

In addition, North Korea on Monday threatened to launch a nuclear attack on the U.S.

North Korea warned Monday that it would launch a preemptive nuclear attack against the U.S. and South Korea if they showed the “slightest sign of aggression” toward Pyongyang while conducting their annual military drills. The North’s Foreign Ministry said its “first-strike” units are prepared to conduct retaliatory strikes on South Korean and U.S. forces, threatening to turn the two nations into “a heap of ashes.”

Don’t worry however. The Obama administration “strongly condemned” the test launch today. That will certainly make a difference.

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China unveils its 2020 Mars lander/rover

7:06 pm

The competition heats up: China today released design concepts of its planned 2020 Mars lander and rover.

According to Ye Peijian, one of China’s leading aerospace experts and a consultant to the program, the 2020 mission will be launched on a Long March-5 carrier rocket from the Wenchang space launch center in south China’s Hainan province. The lander will separate from the orbiter at the end of a journey of around seven months and touch down in a low latitude area in the northern hemisphere of Mars where the rover will explore the surface.

If they succeed they will have definitely moved ahead of Russia in the ranks of space-faring nations.

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