Tag: science

Prime real estate

2:32 pm

The south pole of the moon

Since the 1990s, scientists have suspected that water-ice might be hidden in the forever-dark floors of the polar craters on the Moon. If so, these locations become valuable real estate, as they not only would provide future settlers water for drinking, the water itself can be processed to provide oxygen and fuel.

Moreover, the high points near these craters, including the crater rims, are hoped to be high enough so that the sun would never set or be blocked by other mountains as it made its circuit low along the horizon each day. If such a place existed, solar panels could be mounted there to generate electricity continuously, even during the long 14-day lunar night.

Below the fold is a six minute video, produced from images taken by Lunar Reconnaissance Orbiter (LRO) from February 6, 2010 to February 6, 2011, in an effort to find out if such a place actually exists. It shows how the sunlight hits the south pole across an entire year.
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Global warming scientists blame coal use increase in China for recent cooling

8:25 pm

Global warming scientists have come up with an explanation for the cooling seen in the past decade: The increase of coal burning in China.

In other words, fossil fuels can cause global warming and global cooling!

Or to put it another way, climate scientists really have no clear understanding yet of the climate, and are merely guessing when they try to predict what’s happening.

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Mining the moon for water and nuclear fuel

10:16 am

Mining the moon for water and fuel.

Texas-based Shackleton Energy Company has already begun operations aimed at mining the Moon within the next few years. 

The company’s plans for mining and refining operations would involve melting the ice and purifying the water, converting the water into gaseous hydrogen and oxygen, and then condensing the gases into liquid hydrogen, liquid oxygen and hydrogen peroxide, all potential rocket fuels.

Shackleton CEO Dale Tietz says the water extracted would be used almost exclusively as rocket fuel to power operations both within Low Earth Orbit (LEO) – such as space tourism and the removal of space-debris – on the Moon, and further out into space. ‘We are a for-profit business enterprise moving forward, and so we are only going there really for one reason and that is to mine, prospect mine and harvest water for rocket propellant production,’ says Tietz.

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Dawn’s approach to Vesta continues

9:35 am

Dawn’s approach to Vesta continues.

Starting at the beginning of the approach phase on May 3, Dawn interrupted thrusting once a week to photograph Vesta against the background stars. These images help navigators determine exactly where the probe is relative to its target. This technique does not replace other means of navigation but rather supplements them. One of the principal methods of establishing the spacecraft’s trajectory relies on accurately timing how long it takes radio signals, traveling, as all readers know, at the universal limit of the speed of light, to make the round trip between Earth and Dawn. Another uses the Doppler shift of the radio waves, or the slight change in pitch caused by the craft’s motion. These sensitive measurements remain essential to navigating the faraway ship as it sails the interplanetary seas.

Despite the very slow approach, the distance is small enough now that observing Vesta weekly is no longer sufficient. To achieve the navigational accuracy required to reach the intended orbit in early August, last week the frequency of imaging was increased to twice per week. In each session, half of the pictures are taken with long exposures to ensure many stars are detectable, thus overexposing the much brighter disc of the nearby Vesta. The other half use short exposures to ensure that the rocky world shows up correctly so its precise location can be measured. The visible and infrared mapping spectrometer has been commanded to observe Vesta during three of these sessions, each time providing valuable information that will help scientists select instrument settings for when Dawn is close enough to begin its detailed scientific measurements.

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An independent panel of scientists has found that a $1.4 billion plan put forth by environmentalists to save the salmon of the northwest by destroying four hydroelectric dams and restricting water use was based on junk science.

8:44 am

An independent panel of scientists has found that a $1.4 billion plan put forth by environmentalists to save the salmon of the northwest by destroying four hydroelectric dams and restricting water use was based on junk science.

According to the just-released 350-page assessment, funded by the Fish and Wildlife Service, experts expressed “strong reservations” that the expensive effort could significantly increase the Chinook salmon population in the Klamath River system. . . . The report also states, “There are many pieces of information we do not know about the Klamath system, and none we know with absolute certainty. The process of developing the model, trying to reproduce historical conditions … must be internally consistent.”

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Cassini looks past one Saturn moon to another

4:47 pm

The image below was taken on January 11, 2011 by the space probe Cassini, in orbit around Saturn. First we see the southern polar regions of the moon Rhea, 949 miles in diameter. Beyond is the moon Dione, 698 miles across, appearing to sit on the rings of Saturn.

As far as I am concerned, this image, as well as almost every other image from Cassini, proves that any hotel built in orbit around Saturn is unquestionably going to be one of the hottest tourist spots in the solar system.

Looking past Rhea to Dione and Saturn's rings

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The most distant quasar ever found

9:04 am

Astronomers have found the most distant quasar ever, and are baffled by its existence.

The light from the quasar started its journey toward us when the universe was only 6% of its present age, a mere 770 million years after the Big Bang, at a redshift of about 7.1 [3]. “This gives astronomers a headache,” says lead author Daniel Mortlock, from Imperial College London. “It’s difficult to understand how a black hole a billion times more massive than the Sun can have grown so early in the history of the universe. It’s like rolling a snowball down the hill and suddenly you find that it’s 20 feet across!”

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AAAS campaigns to stop attacks on global warming advocates

11:19 am

The board of the American Association for the Advancement of Science (AAAS) has issued a statement demanding that all attacks on global warming advocates cease.

Though they couch their wording as if they oppose all outside interference with the scientific process (a bad idea on its own), they conveniently only complain about the efforts of skeptics to challenge the work of scientists who support human-caused global warming.

Lawmakers and activist groups also have sought detailed disclosure of records from climate researchers. The American Tradition Institute (ATI) has asked the University of Virginia to turn over thousands of e-mails and documents written by Michael E. Mann, a former U-Va. professor and a prominent climate scientist. Virginia Attorney General Ken Cuccinelli, a climate change skeptic, demanded many of the same documents last year in an effort to determine if Mann had somehow defrauded taxpayers in obtaining research grants. ATI also has sued NASA to disclose records detailing climate scientist James Hansen’s compliance with federal ethics and disclosure rules.

In other words, don’t question these people, only skeptics are open for attack.

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Sunspots and the danger of crying wolf

11:54 am

It’s that time of year again, buckos. Every June, like clockwork, stories and op-eds like these start to flood the media:

Not surprisingly, these stories always happen about the same time our federal bureaucracy puts together a one day June propaganda event called the Space Weather Enterprise Forum, designed to sell to journalists the idea that we are all gonna die if we don’t spend gazillions of dollars building satellites for tracking the sun’s behavior. Along with this conference come numerous press releases, written by the conference’s backers. Here for example is a quote from a press release emailed to me and many journalists:

Recent activity on the Sun, captured in stunning imagery from the Solar Dynamics Observatory, and the resulting threat of significant radiation storms and radio blackouts here on Earth are vivid reminders of our need to better understand the science, improve our forecasts and warnings, and better prepare ourselves for severe space weather storms as the next solar maximum approaches.

The problem for these fear-mongers, however, is that shortly before their forum the scientists who actually study the sun held another press conference, where they laid out in exquisite detail the sun’s astonishing recent decline in activity, and how the next solar maximum will likely be the weakest in centuries and might very well be the last maximum we will see for decades to come.

In other words, the annual effort by government bureaucrats to drum up funding for more space weather facilities has collided head on with the facts.

That there are science journalists from so many major news organization so easily conned into buying this fear-mongering is pitiful enough. More significant, however, is the fact that this annual effort at crying wolf has not been very successful. For years Congress has not funded any new space weather satellites, and doesn’t appear ready to do so in the future, especially with the present budget crisis.
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