Tag: science

Australia’s climate agency admits to fudging climate data

9:44 am

The Australian Bureau of Meteorology (ABM) has finally admitted that it alters the temperatures recorded at almost all the official weather stations in Australia.

They claim that these adjustments are necessary to make the readings more accurate.

Using a process it calls homogenization, ABM has replaced actual temperature measurements with massaged numbers. ABM claims anomalies have arisen in both the historical data and current measurements due to a wide variety of factors unrelated to climate, such as differing types of instruments used, choices of calibration or enclosure and where it was located, and the closure of some stations and opening of others. The ABM argues such factors justify homogenization of the numbers.

Yet somehow, all the adjustments make the present readings hotter and the past readings colder, thus accentuating the illusion of global warming. Nor is this surprising, as the head of ABM has publicly stated his firm belief in global warming, as noted in the article above.

So, shut up and trust their judgment! When they tell you to give up your cars and nicely heated homes, it is just because they want to save the planet.

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Something keeps coming and going in a sea on Titan

11:14 am

Cassini images taken in 2007, 2013, and 2014 of one of Titan’s largest hydrocarbon seas find that a mysterious feature there keeps appearing and disappearing.

The mysterious feature, which appears bright in radar images against the dark background of the liquid sea, was first spotted during Cassini’s July 2013 Titan flyby. Previous observations showed no sign of bright features in that part of Ligeia Mare. Scientists were perplexed to find the feature had vanished when they looked again, over several months, with low-resolution radar and Cassini’s infrared imager. This led some team members to suggest it might have been a transient feature. But during Cassini’s flyby on August 21, 2014, the feature was again visible, and its appearance had changed during the 11 months since it was last seen.

Scientists on the radar team are confident that the feature is not an artifact, or flaw, in their data, which would have been one of the simplest explanations. They also do not see evidence that its appearance results from evaporation in the sea, as the overall shoreline of Ligeia Mare has not changed noticeably. The team has suggested the feature could be surface waves, rising bubbles, floating solids, solids suspended just below the surface, or perhaps something more exotic.

That the seasons are slowly changing on Titan is probably contributing to the transient nature of this feature.

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The planet debate continues

8:22 am

In a public debate about the scientific definition of a planet, the IAU’s definition, imposed about eight years ago to expressly prevent Pluto from being called one, was soundly defeated when the votes were counted.

Science historian Dr. Owen Gingerich, who chaired the IAU planet definition committee, presented the historical viewpoint. Dr. Gareth Williams, associate director of the Minor Planet Center, presented the IAU’s viewpoint [which is the definition that is presently considered official by scientific bureaucrats]. And Dr. Dimitar Sasselov, director of the Harvard Origins of Life Initiative, presented the exoplanet scientist’s viewpoint.

Gingerich argued that “a planet is a culturally defined word that changes over time,” and that Pluto is a planet. Williams defended the IAU definition, which declares that Pluto is not a planet. And Sasselov defined a planet as “the smallest spherical lump of matter that formed around stars or stellar remnants,” which means Pluto is a planet.

After these experts made their best case, the audience got to vote on what a planet is or isn’t and whether Pluto is in or out. The results are in, with no hanging chads in sight.

According to the audience, Sasselov’s definition won the day, and Pluto IS a planet.

Notice that two of the three debaters considered Pluto a planet even before the vote was taken. Notice also that the first debater, Gingerich, was on the very committee that the IAU had created to come up with a definition and then ignored completely when its definition decided that Pluto was a planet.

In the end, it will be the people who speak the language that will decide, not IAU bureaucrats. This little public relations event and vote tells me that the bureaucrats will lose.

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“They want to start taking — now.”

12:33 am

The two stories linked below, describing what it was like at Sunday’s People’s Climate March in New York, confirm for me what I had surmised from earlier reports prior to the march, that the march was a leftwing get-together with its central goal to use the climate as an excuse to impose leftist and communist redistributionist policies on the free citizens of America.

My headline is a quote from the second article. The full quote:

Put it all together — all the justice demanders, the tax Wall Streeters, and the spirit of Occupy symbolized by the angry pacifist — and the People’s Climate March was one long, loud, loosely organized demand that vast sums of money be taken from the wealthy and given to the clients of the coalitions and alliances and networks and task forces that make up today’s environmental justice movement. They’ve had enough of debating climate models. They want to start taking — now.

Lord help us, in that we have already tragically allowed many of these people to wield significant amounts of power, and they are using that power to impose their agenda on us all.

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MAVEN enters Mars orbit

7:25 pm

Upon completion of its engine burn this evening at 10:10 pm (eastern), MAVEN successfully entered Mars orbit.

Stephen Clark’s status updates on Spaceflight Now were accurate, informative, and right on the money. The live telecast on NASA-TV was confusing, idiotic, distracting, and uninformed. They never once announced when the engine burn had started, ignored the reactions of the people in the control room when they cheered some important event, and spent a lot of time discussing facts that were irrelevant to this event, which is “Will MAVEN achieve orbit!?” Worst of all, the male “anchor” was clearly ignorant of the mission while the female “anchor” spoke in a sing-song manner as if her audience were kindergarten toddlers who needed careful herding. All in all, it was embarrassing to watch.

They did manage to shut up just in time to catch the announcement from mission control that telemetry had confirmed that MAVEN had reached orbit. They then went back to chattering about irrelevant stuff. As I said, embarrassing.

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Antarctic sea ice extent largest on record

12:12 am

The uncertainty of science: Even as global warming protesters gather in New York to push their political agenda and fear-monger the threat of global warming, the Antarctic ice cap has set a record for its greatest extent ever measured.

No one really has a convincing explanation for why the south pole ice cap is so large even as the north pole ice cap remains relatively small (though recovering from the record lows from earlier in this century).

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Ocean surface wind speeds declining

10:35 pm

The uncertainty of science: Data now shows that surface wind speeds over the oceans have declined in the past three years, and that August 2014 has the lowest average since 1989.

The author of the article says that these low wind speeds might explain why ocean surface temperatures have recently been high, He also admits he really has no idea. And are these variations because of global warming? No one has the slightest idea. To claim otherwise is to be an advocate not a scientist. As far as we know with the available data, these variations could simply be result of natural cycles.

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The next week in space

2:09 pm

For the next week there are going to be a number of important events that will determine the success or failure of a number of important space missions. I thought I’d lay out the schedule in a quick post, just to make it clear.

  • Falcon 9 launch: SpaceX is hoping to launch its Dragon capsule to ISS tonight at 2:14 am (eastern). If they are successful, it will be the fourth Falcon 9 launch since July 14. That is a very fast-paced launch schedule, as good as any other launch company’s, and more evidence that SpaceX is an effective competitor in the resurgent launch market.
  • Mavin orbital insertion: NASA hopes to place this Mars mission into orbit on Sunday at around 9:50 pm (eastern).
  • India’s Mars Orbiter Mission (MOM), also known as Mangalyaan: There are two important events this week for this mission. First, on Monday, September 22, engineers will do a test firing of the spacecraft’s engine, which has been inactive for the last several months during its cruise to Mars. If that firing is successful, they will do the orbital insertion burn on Wednesday, September 24.

So, stay tuned this week for some fun stuff. And as I’ve been saying, this is only the beginning.

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Why is Wikipedia deleting all references to Neil Tyson’s quote fabrications?

11:02 am

Link here. Key quotes:

Judging by many of the responses to the three pieces I wrote detailing Neil Tyson’s history of fabricating quotes and embellishing stories, you’d think I had defamed somebody’s god. It turns out that fanatical cultists do not appreciate being shown evidence that the object of their worship may not, in fact, be infallible.

And this:

These lovers of science don’t actually love science, because science requires you to go where the evidence takes you, even if it goes against your original hypothesis. What many of Tyson’s cultists really like is the notion that one can become more intelligent via osmosis — that you can become as smart and as credentialed as Tyson by merely clapping like a seal at whatever he says, as long as what he says fits the political worldview of your average progressive liberal.

The author, Sean Davis, provides some juicy quotes from these individuals, who all seem unable to appreciate the importance of honesty, accuracy, and reliability when it comes to science and journalism.

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A giant black hole in a tiny galaxy

10:13 am

The uncertainty of science: Astronomers have unexpectedly discovered a supermassive black hole in the center of a nearby tiny galaxy, comprising almost 18% of the galaxy’s entire mass.

To weigh the beast, the researchers measured the velocity of stars whipping about the galaxy’s centre using an infrared spectrometer on the Gemini North telescope atop Mauna Kea in Hawaii. The high velocity of the stars is best explained by a central black hole that tips the scales at 21 million times the Sun’s mass, concluded Seth’s team. That is more than five times heavier than the black hole at the centre of the Milky Way — even though M60-UCD1 has an estimated diameter of about one-six-hundredth that of our home galaxy.

Previously astronomers had believed that the size of a galaxy would predict the size of its central black hole, and that a galaxy this small would not house such a supermassive object. This find upsets those theories.

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Dawn’s arrival at Ceres delayed one month

5:12 pm

Though engineers have solved the problems caused when a radiation blast disabled Dawn’s ion engine and put it into safe mode for a week, the fix will cause a one month delay in its arrival at the asteroid Ceres.

Controllers discovered Dawn was in safe mode Sept. 11 after radiation disabled its ion engine, which uses electrical fields to “push” the spacecraft along. The radiation stopped all engine thrusting activities. The thrusting resumed Monday (Sept. 15) after controllers identified and fixed the problem, but then they found another anomaly troubling the spacecraft.

Dawn’s main antenna was also disabled, forcing the spacecraft to send signals to Earth (a 53-minute roundtrip by light speed) through a weaker secondary antenna and slowing communications. The cause of this problem hasn’t been figured out yet, but controllers suspect radiation affected the computer’s software. A computer reset has solved the issue, NASA added. The spacecraft is now functioning normally.

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Neil deGrasse Tyson under attack for fabricating quotes

10:16 am

A series of recent articles have attacked Neil deGrasse Tyson for fabricating quotes and other facts in this lectures and presentations. This article provides a good summary.

The article also notes how Tyson’s behavior is quite typical for too many modern scientists, especially those who have been touting human-caused global warming these past two decades.

In related news, climate scientist Judith Curry gave a talk at the National Press Club this week in which she outlined very cogently the real scientific debate and how politics is distorting that process. Unlike Tyson, Curry does not mince words about the data, and considers the fabrication of information to be a terrible thing for scientists to do.

And then there’s this: The Lonesomest Mann in Town.

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Death Valley’s moving rocks

6:01 pm

An evening pause: The detective story that solved the mystery of the moving rocks of Death Valley.

For a century, these eerie rocks and their long, graceful trails have stumped visitors and scientists. The boulders of black dolomite appear to move on their own, sliding uphill across the playa’s flat lakebed. The trails are the only evidence the rocks move. No one has ever seen them set sail.


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Philae’s landing site chosen

3:32 am

Philae's primary landing site

The Rosetta science team has chosen the primary landing site on Comet 67P/C-G for its Philae probe.

Site J is on the ‘head’ of the comet, an irregular shaped world that is just over 4 km across at its widest point. The decision to select Site J as the primary site was unanimous. The backup, Site C, is located on the ‘body’ of the comet. The 100 kg lander is planned to reach the surface on 11 November, where it will perform indepth measurements to characterise the nucleus in situ, in a totally unprecedented way.

This site is, located in the outside center of the nucleus’s smaller lobe, was picked unanimously because it appears to be the easiest to reach while also providing good science.

The descent to the comet is passive and it is only possible to predict that the landing point will place within a ‘landing ellipse’ typically a few hundred metres in size.

A one square kilometre area was assessed for each candidate site. At Site J, the majority of slopes are less than 30º relative to the local vertical, reducing the chances of Philae toppling over during touchdown. Site J also appears to have relatively few boulders, and receives sufficient daily illumination to recharge Philae and continue science operations on the surface beyond the initial battery-powered phase.

Provisional assessment of the trajectory to Site J found that the descent time of Philae to the surface would be about seven hours, a length that does not compromise the on-comet observations by using up too much of the battery during the descent.

I have put a close-up of the landing site below the fold.
» Read more

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Philae’s mission at Comet 67P/C-G

9:29 am

With the decision to pick a landing site for their Philae lander coming up this weekend, the Rosetta science team today released a press announcement describing in detail the lander’s mission.

The details are fascinating. Not only will Philae take images from the surface as well as get data of the surface and its surrounding environment, the probe will also literally pound the surface to measure its temperature as well as get seismic readings.

The MUPUS hammer is released and embeds itself into the ground so that it can measure the temperature at various depths in the subsurface. The acoustic signals of the vibrations of the hammer action will be detected by acoustic sensors in the feet of SESAME/CASSE and will be used to measure the mechanical properties of the nucleus.

If all goes well, they hope that Philae will remain operational on the surface through March.

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Playing with today’s Rosetta image of Comet 67P/C-G

12:04 am

Adjusted comet image

In releasing Wednesday’s image of Comet 67P/C-G, the Rosetta science team suggested that readers download it and play with the brightness and contrast settings to bring out some interesting details.

[I]f you adjust the contrast of the image you will see that there is a lot of ‘noise’ in the background. Some of this is simply detector noise and cosmic rays, but there seem to be a few bright objects that may be dust/ice particles between Rosetta and the comet.

In previous NAVCAM and OSIRIS images, we’ve already seen jets of gas laced with dust streaming away from the comet, and the instruments COSIMA and GIADA have started detecting dust, so it would be no surprise if these objects were also found to originate from the comet. In any case, it is a phenomenon that will clearly be studied in great detail at 67P/C-G over the coming weeks and months.

Another nice observation you might like to make while playing around with the contrast settings is that faint details can be brought out in the ‘neck’ region of 67P/C-G, which on first look is seemingly obscured by shadows. It appears as though the neck is being illuminated by the reflection of sunlight off the main body of the comet below.

The image on the left above is the image as released. The image on the right I have brightened considerably to bring out additional details. As they noted, you can see topographical details in the shadowed neck area. Also, the entire nucleus seems to be surrounded by faint dust streaming away in all directions.

It is going to be a great deal of fun to watch this comet change over the next year as it makes its journey around the Sun.

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The first of two coronal mass ejectors from a solar flare has arrived.

11:14 pm

An alert has been issued so that the electrical grids can been properly prepared to avoid damage by the impact of these two coronal mass ejections (CME) against the Earth’s magnetic field.

The first of the two CMEs predicted to arrive today made its appearance right on time. G1 ((Minor) geomagnetic storming is expected to begin within the next few hours with a maximum projected level of G2 (Moderate) storms for September 12th. A G3 (Strong) Geomagnetic Storm Watch is still in effect for September 13th due to the combined influence of this CME and the one projected to arrive late on the 12th. G1 (Minor) storming is likely to continue into September 14th. In addition, the S1 (Minor) solar radiation storm that is in progress as a result of the eruption on September 10th is expected to persist for the next few days with a possible slight increase with the arrival of the CMEs. Keep in mind that the forecast periods listed are in Universal Time so aurora watchers in the northern U.S. should be looking for possible activity tonight through Saturday night.

While there has been a lot of fear-mongering about these two CMEs, I expect that the only consequences we will see from both, the biggest to hit the Earth during this solar maximum, will be the possibility that the northern lights might be visible in places farther south than normal.

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The solar maximum lingers on

1:09 pm

On Monday NOAA posted its monthly update of the solar cycle, showing the sunspot activity for the Sun in August. As I do every month, I am posting it here, below the fold, with annotations to give it context.

The sunspot activity of the Sun in August hovered at the same levels seen in July. Though the month had seen periods of little activity, these were interspersed with many violent flaring sunspots, including one that only yesterday unleashed a powerful X-class flare that is expected to send a coronal mass ejection directly at the Earth and should impact the Earth’s magnetic field on September 12. Expect spectacular auroras!
» Read more

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The first chemical analysis of Comet 67P/C-G’s coma

8:30 am

The Rosetta science team today released their first analysis of the chemical make-up of Comet 67P/C-G’s coma, finding that not surprisingly it is made up mostly of water, carbon monoxide, and carbon dioxide.

However, ROSINA [the instrument on Rosetta for doing this analysis] has made the surprising observation that the ratio between these species varies quite significantly, depending on where in the coma Rosetta is. Sometimes carbon monoxide is almost as abundant as water; sometimes it’s only around 10%. In addition, ROSINA has not only detected these main species already, but many of the expected minor ones, such as ammonia, methane, and methanol.

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Universal Big Bang lithium deficit confirmed

9:10 am

The uncertainty of science: New data from a globular cluster in nearby dwarf galaxy has confirmed that the deficit of lithium that astronomers have found in the Milky Way also exists in other galaxies.

According to the Big Bang theory, the amount of lithium in the universe should be two or three times more than it is. This result shows that the deficit exists outside the Milky Way, which suggests strongly that something significant is wrong with the Big Bang theory.

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More fraud in academia

8:59 am

A simple background check on a West Virginia academic who was touted as a “genius” has discovered that his entire resume was a fraud.

[Anoop] Shankar isn’t a Ph.D. He didn’t graduate from the Harvard of India. He didn’t write dozens of the scholarly publications on his resume, and as for the Royal College of Physicians, they’ve never heard of him. He does have a master’s degree in epidemiology from the University of North Carolina and an Indian medical degree, but at least two of his green card references—attesting to “world class creativity,” “genius insight,” and “a new avenue for treating hypertension”—were a forgery.

Worse, when the investigation threatened his bright future he used two students to try to destroy the career of an investigator by faking a sexual attack.

And even worse yet, the academic community remains unwilling to deal with this fraud aggressively.

Although Shankar was forced out of WVU in December of 2012, the university has yet to address the case publicly, allowing Shankar and his work to continue unchallenged. In the last year alone, he’s published at least three papers, including one in the prestigious Journal of the American Medical Association. He also landed a new job on the backs of taxpayers: associate professor of family medicine at Virginia Commonwealth University, a large public university in Richmond.

So far, the investigation has only focused on the man’s faked resume. No one has taken a close look at his medical research, though the article does describe one example where Shankar was actually teaching his students to manipulate data unethically to get the results they wanted.

As the article notes, “How many more are there out there?” As I’ve documented repeatedly in the climate field, academia no longer seems interested in cleaning house and maintaining honest standards. This story only reinforces this fact.

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