Tag: science
Imaging the ground under the Greenland ice sheet
In a paper published today in Geophysical Research Letters of the American Geophysical Union, scientists describe how they have been able to produce remarkably detailed images of the ground buried almost a mile under the ice sheet of Greenland. These radar techniques are the same used in the past by spacecraft to image the hidden surface of Venus, only far more sophisticated.
This image from the paper compares the radar image of the Greenland surface (on the left) to an photograph of a known surface feature in the Northwest Territories of Canada, produced thousands of years ago by the giant icesheets of the last Ice Age. Both are at the same scale, about a third of a mile across, and are looking at the surface at an oblique angle of about 45 degrees. With the radar-produced image on the left, sunlight is simulated as coming from the right, with the elevation increasing as the colors go from green (lowest) to yellow to brown to purple (highest).
The long grooves, generally 30 to 100 feet deep and extending sometimes several miles, are produced as the icesheet slides across the ground. In the radar image, however, these grooves are slowly being ground out now.
It is the resolution of this technique that is so exciting. That they can look through ice almost a mile thick and resolve objects that are only tens of feet across tells me that someday it will be possible for spacecraft to map the smallest features on the surface of Venus or Titan. More exciting, this suggests that the technology will one day exist to even map the unknown surface of gas giants like Jupiter or Saturn, and do it in breathtaking detail.
Yowza!
The climate has been cooling since 2003, according to ocean data
From Watts Up With That: Data from the Argos ocean floats says that the Earth’s climate, as measured by the heat content of the ocean, has been cooling since 2001, not warming as predicted by climate models. You can download the actual science paper, “The Energy Balance of Earth,” here.
From Watts Up With That: Data from the Argos ocean floats says that the Earth’s climate, as measured by the heat content of the ocean, has been cooling since 2001, not warming as predicted by climate models. You can download the actual science paper, “The Energy Balance of Earth,” here.
Congress’s inability to pass any full-year spending bills for 2011 will likely delay the launch of two civilian weather satellites by more than a year
It ain’t just NASA that’s having budget problems: The lack of a budget from Congress is going to delay the launch of two civilian NOAA weather satellites by more than a year.
It ain’t just NASA that’s having budget problems: The lack of a budget from Congress is going to delay the launch of two civilian NOAA weather satellites by more than a year.
Why the sun’s atmosphere is hotter than its surface
Why the sun’s atmosphere is hotter than its surface.
Why the sun’s atmosphere is hotter than its surface.
A private science mission to an asteroid?
A proposal to revive a project to send a private science probe to an asteroid.
The original project, NEAP, was proposed back in 1997 by the late Jim Bensen of SpaceDev (now Sierra Nevada). Benson wanted to not only do research, but he planned to claim the asteroid as his property upon landing. Though his proposal never flew, it was clearly a forerunner to today’s resurgence of the private space industry, and in many ways kickstarted that resurgence.
A proposal to revive a project to send a private science probe to an asteroid.
The original project, NEAP, was proposed back in 1997 by the late Jim Bensen of SpaceDev (now Sierra Nevada). Benson wanted to not only do research, but he planned to claim the asteroid as his property upon landing. Though his proposal never flew, it was clearly a forerunner to today’s resurgence of the private space industry, and in many ways kickstarted that resurgence.
The recovery of the Lunar Orbiter images from the 1960s
The early Lunar Orbiter images, taken in the mid-1960s, have been reprocessed and recovered, in a spectacular manner.
The early Lunar Orbiter images, taken in the mid-1960s, have been reprocessed and recovered, in a spectacular manner.
Using Apollo data, scientists detect Moon’s molten core
Using old Apollo data, scientists have detected the Moon’s molten core.
Using old Apollo data, scientists have detected the Moon’s molten core.
University of Virginia resists releasing climate documents
Another whitewash? The University of Virginia is resisting releasing a variety of climate documents being requested under the state’s Freedom of Information Act (FOIA). Key quote:
In response to a previous FOIA request, U.Va. denied these records existed. However, during Cuccinelli’s pre-investigation under the Virginia Fraud Against Taxpayers Act (“FATA”), a 2007 law passed unanimously by Virginia’s legislature, which clearly covers the work of taxpayer-funded academics, U.Va. stunningly dropped this stance.
Another whitewash? The University of Virginia is resisting releasing a variety of climate documents being requested under the state’s Freedom of Information Act (FOIA). Key quote:
In response to a previous FOIA request, U.Va. denied these records existed. However, during Cuccinelli’s pre-investigation under the Virginia Fraud Against Taxpayers Act (“FATA”), a 2007 law passed unanimously by Virginia’s legislature, which clearly covers the work of taxpayer-funded academics, U.Va. stunningly dropped this stance.
Peer-reviewed journal article a “Fraud”
Back in 1998 a peer-reviewed paper in the medical journal, Lancet, claimed that the childhood vaccinations for measles, mumps and rubella vaccine could be linked to autism and other health problems. The consequence was that thousands of parents withheld vaccinations from their children, resulting in an outburst of measles that almost certainly did actual harm to many children.
This paper has now been shown to be an outright fraud.
This story raises two thoughts. First, it demonstrates clearly that just because a research paper is published in a “peer-reviewed” science journal is no guarantee that the paper will be honest, reliable, or factually accurate. As good scientists like to say, “Extraordinary results require extraordinary evidence.” Both the press and public need to be constantly skeptical about all research, regardless of where it is published.
Secondly, the reaction of the journal, Lancet, to this whole affair suggests strongly that this particular journal is even more unreliable than most. To quote:
The Lancet withdrew the article in January of last year after concluding that “several elements” of the paper were incorrect. But the journal didn’t describe any of the discrepancies as fraud.
The journal’s reaction is similar to what we saw with the climategate emails, an effort to whitewash the situation while refusing to face the problem bluntly and fix it. If the article was as fraudulent as the Wall Street Journal article above suggests, it raises serious questions about the editorial policies at Lancet. That the editors there seem uninterested in addressing these concerns acts to discredit their publication entirely. And until they deal with this issue properly, I would look very skeptically on anything they publish.
(Note that this is not the first time Lancet has published research of questionable reliability. See this story for another example.)
Large Hadron Rap
Manipulative cats fake illness when upset
Science discovers the obvious: Cats are manipulative!
Science discovers the obvious: Cats are manipulative!
Long-term space flight may be a problem for human reproduction
Don’t plan that honeymoon yet! Long-term space flight may be a problem for human reproduction. Key quote:
If exercise keeps muscles in shape [in space], what countermeasure might astronauts use to maintain reproductive health?
Souza laughed.
“That’s a good question,” he said.
Don’t plan that honeymoon yet! Long-term space flight may be a problem for human reproduction. Key quote:
If exercise keeps muscles in shape [in space], what countermeasure might astronauts use to maintain reproductive health?
Souza laughed.
“That’s a good question,” he said.
amateur-astronomer-discovers-four-new-planets-from-his-office-at-home-and-he-doesnt-even-own-a-telescope
An amateur astronomer, using his computers at home, has discovered four new exoplanets.
An amateur astronomer, using his computers at home, has discovered four new exoplanets.
Japan may make second try at Akatsuki-Venus rendezvous one year earlier than planned
Japan may try to put Akatsuki into orbit around Venus five years from now, rather than six.
Japan may try to put Akatsuki into orbit around Venus five years from now, rather than six.
Andromeda’s once and future stars
Andromeda’s once and future stars. Great images of the galaxy too!
Andromeda’s once and future stars. Great images of the galaxy too!
Vulture tagged by Israeli scientists flies into Saudi Arabia and is arrested for being a spy
You can’t make this stuff up! A vulture, tagged by Israeli scientists to study the bird’s migration patterns, flew into Saudi Arabia where it was arrested as a spy.
You can’t make this stuff up! A vulture, tagged by Israeli scientists to study the bird’s migration patterns, flew into Saudi Arabia where it was arrested as a spy.
Opportunity at Santa Maria Crater, as seen from space
The image below was taken by Mars Reconnaissance Orbiter on New Year’s Eve. It shows the rover Opportunity on the rim of stadium-sized Santa Maria Crater, where scientists plan to spend the next two months exploring the crater.
Opportunity has truly been an astonishing success for NASA’s planetary science program. The rover has operated on the Martian surface since 2004, almost seven years beyond its original mission length. It is presently about halfway on its long journey to the much larger Endeavour Crater (14 miles in diameter), still several miles away.
A plunge in solar activity in December
The monthly update of the Sun’s developing sunspot cycle was published tonight by NOAA’s Space Weather Prediction Center. You can see the newest graph below, which shows the slow rise in sunspots (blue/black lines) in comparison with the consensis prediction made by the solar science community in May 2009 (red line).
Not only does the Sun’s generally quiet trend continue, its activity took an additional plunge in December, dropping significantly from the previous month. This drop is probably due to the seven days of no sunspots that took place in mid-December.
All in all, we continue to head for the weakest maximum in two hundred years (see the graph on this page), which in the past meant very cold weather. Though scientists do not yet understand why the Sun does this or how these changes in solar activity influence the climate as much as they do, that this in now happening at a time when we have the technology to truly study it is an opportunity that must not be missed.
Flightless prehistoric bird used its wing bones to clobber rivals
A flightless prehistoric bird, about the size of a chicken and found only in Jamaica, used the blunt and thick bones at the end of its wings as a weapon against its rivals.
A flightless prehistoric bird, about the size of a chicken and found only in Jamaica, used the blunt and thick bones at the end of its wings as a weapon against its rivals.
Viking Found Organics on Mars, Experiment Confirms
New research confirms that the Viking landers did find organics on Mars back in the 1970s. Listen also to the September 15, 2010 and September 23, 2010 radio interviews that John Batchelor and I did with Viking project scientist Gilbert Levin and Christopher McKay of the Ames Research Center on this very subject.
New research confirms that the Viking landers did find organics on Mars back in the 1970s. Listen also to the September 15, 2010 and September 23, 2010 radio interviews that John Batchelor and I did with Viking project scientist Gilbert Levin and Christopher McKay of the Ames Research Center on this very subject.
Ten year old Canadian girl youngest person to discover a supernova
Start ’em young! A ten year old Canadian girl has become the youngest person to discover a supernova.
Start ’em young! A ten year old Canadian girl has become the youngest person to discover a supernova.
Why Most Published Research Findings are False
Why most published research findings are false. And written by a published but skeptical climate scientist. Key quote:
In global warming research, there is a popular misconception that oil industry-funded climate research actually exists, and has skewed the science. I can’t think of a single scientific study that has been funded by an oil or coal company.
But what DOES exist is a large organization that has a virtual monopoly on global warming research in the U.S., and that has a vested interest in [anthropogenic global warming] theory being true: the U.S. Government. The idea that government-funded climate research is unbiased is laughable. The push for ever increasing levels of government regulation and legislation, the desire of government managers to grow their programs, the dependence of congressional funding of a problem on the existence of a “problem” to begin with, and the U.N.’s desire to find reasons to move toward global governance, all lead to inherent bias in climate research.
Why most published research findings are false. And written by a published but skeptical climate scientist. Key quote:
In global warming research, there is a popular misconception that oil industry-funded climate research actually exists, and has skewed the science. I can’t think of a single scientific study that has been funded by an oil or coal company.
But what DOES exist is a large organization that has a virtual monopoly on global warming research in the U.S., and that has a vested interest in [anthropogenic global warming] theory being true: the U.S. Government. The idea that government-funded climate research is unbiased is laughable. The push for ever increasing levels of government regulation and legislation, the desire of government managers to grow their programs, the dependence of congressional funding of a problem on the existence of a “problem” to begin with, and the U.N.’s desire to find reasons to move toward global governance, all lead to inherent bias in climate research.
Dead fish cover 20-miles of Arkansas River
One hundred thousand dead fish cover 20-miles of the Arkansas River in Arkansas and no one knows why.
One hundred thousand dead fish cover 20-miles of the Arkansas River in Arkansas and no one knows why.
Can We Find Trees on Other Planets?
Can we find trees on other planets?
Can we find trees on other planets?
The 97% “Consensus” is only 75 Self-Selected Climatologists
The 97% “Consensus” is only 75 Self-Selected Climatologists. Key quote:
Close examination of the source of the claimed 97% consensus reveals that it comes from a non-peer reviewed article describing an online poll in which a total of only 79 climate scientists chose to participate. Of the 79 self-selected climate scientists, 75 agreed with the notion of AGW [anthropogenic global warming]. Thus, we find climate scientists once again using dubious statistical techniques to deceive the public that there is a 97% scientific consensus on man-made global warming; fortunately they clearly aren’t buying it.
The 97% “Consensus” is only 75 Self-Selected Climatologists. Key quote:
Close examination of the source of the claimed 97% consensus reveals that it comes from a non-peer reviewed article describing an online poll in which a total of only 79 climate scientists chose to participate. Of the 79 self-selected climate scientists, 75 agreed with the notion of AGW [anthropogenic global warming]. Thus, we find climate scientists once again using dubious statistical techniques to deceive the public that there is a 97% scientific consensus on man-made global warming; fortunately they clearly aren’t buying it.
This winter is the Stalingrad in the ‘Climate War’
This winter is the Stalingrad in the ‘Climate War’.
This winter is the Stalingrad in the ‘Climate War’.
Heading towards a Maunder Minimum
Though I have been saying that the Sun’s lack of sunspots the last two years suggests the possibility of that we might be facing an extended period without solar activity, I am not a solar scientist. Today, in a paper published today on the Los Alamos astro-ph website, a solar scientist says just that. Key quote:
One method that has yielded predictions consistently in the right range during the past few solar cycles is that of K. Schatten et al., whose approach is mainly based on the polar field precursor. The incipient cycle 24 [on-going right now] will probably mark the end of the Modern Maximum, with the Sun switching to a state of less strong activity.
Though I have been saying that the Sun’s lack of sunspots the last two years suggests the possibility of that we might be facing an extended period without solar activity, I am not a solar scientist. Today, in a paper published today on the Los Alamos astro-ph website, a solar scientist says just that. Key quote:
One method that has yielded predictions consistently in the right range during the past few solar cycles is that of K. Schatten et al., whose approach is mainly based on the polar field precursor. The incipient cycle 24 [on-going right now] will probably mark the end of the Modern Maximum, with the Sun switching to a state of less strong activity.
Brazil joins the European Southern Observatory
Brazil has become the first non-European partner in the European Southern Observatory.
Brazil has become the first non-European partner in the European Southern Observatory.
The Sun is no longer blank
After six blank days, the Sun is once again showing spots. As I have mentioned several times in 2010, this might be the last time the Sun is blank for years to come as it ramps up to solar maximum. However, don’t bet on it, as the Sun’s activity has been way below all predictions. The upcoming solar maximum might very well be the first in centuries with blank days interspersed throughout.
After six blank days, the Sun is once again showing spots. As I have mentioned several times in 2010, this might be the last time the Sun is blank for years to come as it ramps up to solar maximum. However, don’t bet on it, as the Sun’s activity has been way below all predictions. The upcoming solar maximum might very well be the first in centuries with blank days interspersed throughout.