Tag: science

Ed Weiler quit NASA over Mars planetary program cuts to be announced Monday

12:53 pm

Ed Weiler quit NASA in September because of the cuts to the Mars planetary program that the Obama administration will announce on Monday.

Weiler was NASA’s chief science administrator for most of the past thirty years.

As I have already noted, the programs that NASA shouldn’t cut are its planetary and astronomy programs. Far better to dump the Space Launch System, which eats up a lot more cash and will end up producing nothing. By doing so you would not only reduce NASA’s actual budget — thereby saving the federal government money — you could simultaneously increase the budgets of the planetary and astronomy programs.

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“I feel duped.”

10:33 pm

The man duped is Fritz Vahrenholt, a former global warming advocate and leftwing environmentalist in Germany. The words were spoken in a long and detailed interview in Der Spiegel. Read it all, as it demonstrates without question that Vahrenholt has done his research about the complexities of climate research as well as the flaws and dishonesty contained within the IPCC reports. However, he gets to the nub of the matter when he is asked why he has taken on the role of a climate skeptic with such passion.
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The Sun goes bust

3:55 pm

It is that time of the month again. Today NOAA’s Space Weather Prediction Center today released its monthly update of the ongoing solar cycle sunspot activity, covering January 2012. I have posted the graph below the fold.

For the second month in a row the Sun’s sunspot activity plunged. The drop in activity has been so steep that it has cancelled out almost two thirds of the activity rise that occurred during the last half of 2010. In fact, the drop brings the Sun’s sunspot count back to numbers comparable with March of last year, hardly a sign of a fast ramp up to solar maximum, which is what solar scientists have come to expect the Sun to do. Instead, the Sun’s activity during this ramp up has fluctuated wildly, going up strongly for several months and then dropping precipitously for another few months. These wild swings have now repeated themselves four times since the fall of 2010.
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The Himalayas and nearby peaks have lost no ice in past 10 years, study shows

2:51 pm

The uncertainty of science: New satellite data shows that the glaciers in the Himalayas have lost no ice in past 10 years.

The scientists are careful to point out that lower-altitude glaciers in the Asian mountain ranges – sometimes dubbed the “third pole” – are definitely melting. Satellite images and reports confirm this. But over the study period from 2003-10 enough ice was added to the peaks to compensate.

Is this further confirmation that global warming stopped ten years ago? Not really. As the report notes, the time period is too short to establish a clear trend. Moreover, this study only deals with the Asian glaciers, which is also too small a sample for any firm conclusions.

Nonetheless, the data does illustrate once again how complex and uncertain the study of the Earth’s climate is. Anyone who claims we know what is really happening is either refusing to look at all the data or is simply lying.

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The Russians have confirmed that their scientists have successfully drilled into Lake Vostok in Antartica.

8:53 am

The Russians have confirmed that their scientists have successfully drilled into Lake Vostok in Antarctica.

Still no results, but this is not surprising, as these scientists will need time to analyze their data.

Update: More details from Science:

On Saturday, the drill had encountered water at about 3766 meters depth, but the team determined that it was a water lens sitting above the surface of the lake rather than the lake itself. The team collected water samples from the lens, and then kept drilling until reaching the lake surface itself. As expected, the pressurized water of the lake rose about 30 to 40 meters through the borehole and froze, plugging the borehole; the team will return next fall to retrieve the plug and examine it for signs of life.

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Two more global warming scientists turn skeptics

4:51 pm

Two more global warming scientists, this time in Germany, have become global warming skeptics.

One of the fathers of Germany’s modern green movement, Professor Dr. Fritz Vahrenholt, a social democrat and green activist, decided to author a climate science skeptical book together with geologist/paleontologist Dr. Sebastian Lüning. Vahrenholt’s skepticism started when he was asked to review an IPCC report on renewable energy. He found hundreds of errors. When he pointed them out, IPCC officials simply brushed them aside. Stunned, he asked himself, “Is this the way they approached the climate assessment reports?”

Vahrenholt decided to do some digging. His colleague Dr. Lüning also gave him a copy of Andrew Montford’s The Hockey Stick Illusion. He was horrified by the sloppiness and deception he found. Persuaded by Hoffmann & Campe, he and Lüning decided to write the book. Die kalte Sonne [The Cold Sun] cites 800 sources and has over 80 charts and figures. It examines and summarizes the latest science.

[The c]onclusion: climate catastrophe is called off. The science was hyped.

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Scientists have identified the oldest living thing on Earth, a patch of seagrass growing underwater in the Mediterranean.

9:25 am

Scientists have identified the oldest living thing on Earth, a patch of seagrass growing underwater in the Mediterranean.

Australian scientists sequenced the DNA of samples of the giant seagrass, Posidonia oceanic, from 40 underwater meadows in an area spanning more than 2,000 miles, from Spain to Cyprus.

The analysis, published in the journal PLos ONE, found the seagrass was between 12,000 and 200,000 years old and was most likely to be at least 100,000 years old. This is far older than the current known oldest species, a Tasmanian plant that is believed to be 43,000 years old.

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A rehash of the available data has narrowed the search for the Higgs particle.

9:16 am

A rehash of the available data has narrowed the search for the Higgs particle.

Taken together with data from the other detector, ATLAS, Higgs overall signal now unofficially stands at about 4.3σ. In other words, if statistics are to be believed, then this signal has about a 99.996% chance of being right.

It all sounds very convincing, but don’t get too excited, because the fact is that statistical coincidences happen every day. Over at Cosmic Variance, Sean Carroll points out that there is a 3.8σ signal in the Super Bowl coin toss.

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All NASA funding for the European ExoMars mission appears to have been cut by the Obama administration.

9:13 pm

All NASA funding for ESA’s unmanned ExoMars mission appears to have been cut by the Obama administration.

A public announcement by Nasa of its withdrawal from the ExoMars programme, as it is known in Europe, will probably come once President Obama’s 2013 Federal Budget Request is submitted. This request, expected in the coming days, will give the US space agency a much clearer view of how much money it has to implement its various projects. “The Americans have indicated that the possibility of them participating is now low – very low. It’s highly unlikely,” said Alvaro Gimenez, Esa’s director of science.

Though this story doesn’t confirm the earlier rumors that the Obama administration was going to eliminate the entire NASA planetary program, it sure lends those rumors further weight. However, the new budget should be released any day now, when we will finally find out.

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Unconfirmed reports in the Russian press today claim that the drilling team in Antarctica has successfully reached Lake Vostok more than two miles under the icecap.

1:39 pm

Unconfirmed reports in the Russian press today claimed that the drilling team in Antarctica has successfully reached Lake Vostok, more than two miles under the icecap.

No results yet. And since the story above spends more time talking about old silly stories about a hidden NAZI hideout in Antarctica than it does the Russian science effort there it should be taken with a grain of salt.

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Mars Express has found more evidence that Mars once had oceans.

10:00 am

Mars Express has found more evidence that Mars once had oceans.

Two oceans have been proposed: 4 billion years ago, when warmer conditions prevailed, and also 3 billion years ago when subsurface ice melted following a large impact, creating outflow channels that drained the water into areas of low elevation.

“MARSIS penetrates deep into the ground, revealing the first 60–80 metres of the planet’s subsurface,” says Wlodek Kofman, leader of the radar team at IPAG. “Throughout all of this depth, we see the evidence for sedimentary material and ice.” The sediments revealed by MARSIS are areas of low radar reflectivity. Such sediments are typically low-density granular materials that have been eroded away by water and carried to their final destination.

This later ocean would however have been temporary. Within a million years or less, Dr Mouginot estimates, the water would have either frozen back in place and been preserved underground again, or turned into vapour and lifted gradually into the atmosphere. “I don’t think it could have stayed as an ocean long enough for life to form.”

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For the last five days there has been no contact with the Russian scientists drilling down more than two miles to Lake Vostok in Antarctica.

8:07 am

Updated and bumped: Six days now, and no word.

Fact meets science fiction: For the last five days there has been no contact with the Russian scientists drilling down more than two miles to Lake Vostok in Antarctica.

The team from Russia’s Arctic and Antarctic Research Institute (AARI) have been drilling for weeks in an effort to reach isolated Lake Vostok, a vast, dark body of water hidden 13,000 ft. below the ice sheet’s surface. The lake hasn’t been exposed to air in more than 20 million years.

Priscu said there was no way to get in touch with the team — and the already cold weather is set to plunge, as Antarctica’s summer season ends and winter sets in. “Temps are dropping below -40 Celsius [-40 degrees Fahrenheit] and they have only a week or so left before they have to winterize the station,” he said. “I can only imagine what things must be like at Vostok Station this week.”

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Another superEarth has been found orbiting a star in the habitable zone.

5:31 pm

Another superEarth has been found orbiting a star in the habitable zone.

An M-class dwarf star called GJ 667C, which is 22 light-years away from Earth, had previously been observed to have a super-Earth (called GJ 667Cb) that orbited the star in only 7.2 days, making it too close to the star, and thus too hot, to support life.

The study started with the aim of learning more about the orbit of GJ 667Cb. But the research team found a clear signal of a new planet (GJ 667Cc) with an orbital period of 28.15 days and a minimum mass of 4.5 times that of Earth.

Though the planet is much closer to its star than the Earth, the star itself is much smaller and dimmer, so overall the planet gets about the same amount of energy as the Earth.

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The face in space

3:38 pm

The face in space.

The hotbed of star birth, called NGC 3324, is full of hot young stars, whose ultraviolet radiation is making the gas clouds glow. The stellar wind and radiation from the newborn stars has also punched out a cavity in the surrounding gas and dust. The edge of the wall of gas and dust at the right in the photo resembles the profile of a human face, with a ridge in the center that looks like a nose.

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