Tag: science

New NASA Data Blow Gaping Hole In Global Warming Alarmism

1:25 pm

The headline says it all: New NASA data blow gaping hole in global warming alarmism.

Scientists on all sides of the global warming debate are in general agreement about how much heat is being directly trapped by human emissions of carbon dioxide (the answer is “not much”). However, the single most important issue in the global warming debate is whether carbon dioxide emissions will indirectly trap far more heat by causing large increases in atmospheric humidity and cirrus clouds. Alarmist computer models assume human carbon dioxide emissions indirectly cause substantial increases in atmospheric humidity and cirrus clouds (each of which are very effective at trapping heat), but real-world data have long shown that carbon dioxide emissions are not causing as much atmospheric humidity and cirrus clouds as the alarmist computer models have predicted.

The new NASA Terra satellite data are consistent with long-term NOAA and NASA data indicating atmospheric humidity and cirrus clouds are not increasing in the manner predicted by alarmist computer models. The Terra satellite data also support data collected by NASA’s ERBS satellite showing far more longwave radiation (and thus, heat) escaped into space between 1985 and 1999 than alarmist computer models had predicted. Together, the NASA ERBS and Terra satellite data show that for 25 years and counting, carbon dioxide emissions have directly and indirectly trapped far less heat than alarmist computer models have predicted. [emphasis mine]

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Astronomers identify Earth’s first Trojan asteroid

9:53 pm

Astronomers have spotted the first Trojan asteroid to the Earth.

The asteroid is roughly 1,000 feet (300 meters) in diameter. It has an unusual orbit that traces a complex motion near a stable point in the plane of Earth’s orbit, although the asteroid also moves above and below the plane. The object is about 50 million miles (80 million kilometers) from Earth. The asteroid’s orbit is well-defined and for at least the next 100 years, it will not come closer to Earth than 15 million miles (24 million kilometers).

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ISS to be deorbited in 2020

7:47 am

The head of the Russian space agency said today that ISS will be deorbited in 2020, as agreed to by the governments running it.

Wanna bet? They are only now starting to do the research the station is best designed for, and learning how to live in space for years is going to take years. Come 2020, that work will hardly be done. Moreover, the impossibility of replacing ISS without a shuttle to haul up large modules and trusses will make very appealing the idea of keeping the present station in operation.

Then again, everything I just wrote is simple common sense, and who ever expected common sense from these governments?

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ISS partners discuss how to use the space station as a test bed for missions beyond low Earth orbit.

8:43 pm

Now why didn’t they think of this before? The ISS partners met today to discuss how to use the space station as a test bed for missions beyond low Earth orbit.

As I wrote in Leaving Earth, a space station is nothing more than a prototype interplanetary spaceship. This kind of research is really its main purpose, and I am glad that the governments running ISS are finally beginning to recognize it, even though their engineers have known it for decades. Note too that the press release above also gives a nice overview of some of the ongoing research on ISS that is directly related to learning how to survive in space for long periods.

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Better constants in science

1:22 pm

More precise constants in science.

The numbers include reduced uncertainties for several key constants, which physicists say is encouraging because these will allow for better tests of theory. The more precise figures will also aid plans to redefine familiar units of measure­ment, such as the kelvin and the kilogram, in terms of unchanging fundamental constants rather than relying on a material object that might not be stable (as for the kilogram standard).

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Thank the Gods for Climategate

1:03 pm

Thank the gods for climategate.

We are certainly in a far different world vis-a-vis global warming than 21 months ago. The [global warming] climatologists are, to a very large extent, being ignored. Yes, there is an IPCC coming up, and perhaps we should wait until that is over. But I will predict that no matter what hoohah comes out of it, it will not have 50% of the energy of the previous IPCCs, because governments just aren’t listening with baited breath anymore. If there is any place where the mojo counted, it was with governments. But it ain’t there any more.

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Junk journalism

12:50 pm

In a piece today at the Huffington Post, science journalist Seth Borenstein declares the wonders of NASA’s next mission: to send astronauts to an asteroid by 2025, as declared by President Obama.

If you believe this is going to happen, then I have a bridge I want to sell you. To do it we need a spaceship in which people can live for at least a year, and a rocket to get that ship into orbit. Not only do we not yet know how to build such a spaceship, we no longer have the capability of putting it into orbit. In case you’re unaware (Borenstein acts like he is), the space shuttle no longer exists. And under this administration and Congress, any replacement we get isn’t going to be able to launch such an interplanetary spaceship anywhere in the near future, especially faced as we are with the present federal debt.

The disgraceful thing about this article, however, is the lack of skepticism shown by Borenstein.
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In color from Mercury

2:30 pm

The Messenger spacecraft has now been in orbit around Mercury since the end of March, almost four months. During that time the probe has sent back many fascinating images, showcasing a hot, alien planet whose surface was formed by impacts, volcanic activity, and some processes that no one as yet understands.

Most of the released images, however, have been in black and white, which at first glance makes one think that Mercury is not unlike the Moon. This week the Messenger team released a color image, demonstrated clearly how false this assumption is. The image below shows two very different craters, a dark-haloed crater named Basho at the bottom left of the image, and a very bright crater, Kalidasa crater, near the top left. On the right of the image is a dark haloed Tolstoj basin. For an uncropped full resolution version go here.

color image from Mercury
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The next Mars rover will land at Gale Crater

11:46 am

The next Mars rover will land at Gale Crater.

The car-sized Mars Science Laboratory, or Curiosity, is scheduled to launch late this year and land in August 2012. The target crater spans 96 miles (154 kilometers) in diameter and holds a mountain rising higher from the crater floor than Mount Rainier rises above Seattle. Gale is about the combined area of Connecticut and Rhode Island. Layering in the mound suggests it is the surviving remnant of an extensive sequence of deposits. The crater is named for Australian astronomer Walter F. Gale. . . . The portion of the crater where Curiosity will land has an alluvial fan likely formed by water-carried sediments. The layers at the base of the mountain contain clays and sulfates, both known to form in water.

More here, including images of landing site.

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The journal Science finally admits things have not gotten warmer in the past decade

8:52 pm

The journal Science finally admits things have not gotten warmer in the past decade.

The explanation provided, that recent volcanic eruptions cooled a warming earth, might be true, though the conclusions are based not so much on data but on climate computer models, a fact that leaves me somewhat skeptical. Nonetheless, what is significant to me about this article is that Science — which has been decidedly in the global warming political camp for years and has frequently lambasted scientists who suggested the climate’s warming has slowed or even stopped in the past decade — has now been forced to admit that the warming has stopped. That they feel compelled to push the global warming threat in the same sentence only reveals their continuing scientific bias.

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The sun, climate change, and censorship

10:14 pm

The chief of CERN has prohibited its scientists from drawing any conclusions from a major experiment that appears to prove that solar activity and the resulting ebb and flow of cosmic rays has a direct effect on the climate.

Two points:

First, the results described provide strong evidence that the sun is a much more important component in climate change than any climate model has previously predicted. These results could help explain the Little Ice Age, which took place around 1700 at exactly the same time the sun became very quiet and stopped producing sunspots for decades. They could explain the Medieval Warm Period around 1000 AD, when cosmic ray activity declined (which also suggests the sun become more active) and the earth apparently warmed. And they might very well even explain the recent cooling during the past decade, which also took place during a period of solar inactivity and a comparable increase in cosmic ray activity.
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A new study finds that just looking at the American flag makes one more prone to support the Republican Party

8:26 pm

A new study finds that just looking at the American flag makes one more prone to support the Republican party.

I have doubts about these results. Nonetheless, the research does sort of confirm the earlier study from Harvard that suggested that patriotism and celebrating the Fourth of July tended to make people favor the Republican party over the Democratic party. In both cases, these results really tell us a great deal about the perception people have of both parties. It is not hard for people to imagine modern Democrats as almost being hostile to America and its founding principles.

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A flag in the dust

11:28 am

Bumped: I posted this essay last July 20th on the anniversary of the Apollo 11 landing on the moon. I think it is worth rereading again, even as the shuttle is about to return to Earth for the last time.

Today, July 20th, is the anniversary of the Apollo 11 landing on the Moon, the first time ever that a human being arrived on another planet. Americans love to celebrate this event, as it symbolizes one of the finest moments in our history, when we set out to achieve something truly great and noble and succeeded far better than we could have imagined. Not only did we get to the Moon as promised, over the next three and a half years we sent another five missions, each with increasingly sophisticated equipment, each sent to explore some increasingly alien terrain. Forty-plus years later, no one has come close to matching this achievement, a fact that emphasizes how difficult it was for the United States to accomplish it.

There is one small but very important detail about the Apollo 11 mission, however, that most Americans are unaware of. In mounting the American flag, the astronauts found the lunar surface much harder than expected. They had a great deal of trouble getting the flagpole into the ground. As Andrew Chaikin wrote in his book, A Man on the Moon, “For a moment it seemed the flag would fall over in front of a worldwide audience, but at last the men managed to steady it.” Then Armstrong took what has become one of the world’s iconic images, that of Buzz Aldrin standing on the lunar surface saluting the flag of the United States of America.

Aldrin saluting the flag

What people don’t know, however, is that when Armstrong and Aldrin blasted off from the lunar surface, the blast wave from the Lunar Module’s rocket knocked the flag over. As Chaikin also wrote, “Outside, a spray of gold foil and debris from the descent stage flew away in all directions. The flag toppled to the dust.”

Thus, for the last four decades this American flag, shown so proudly unfurled on the surface of the Moon, has actually been lying unceremoniously on the ground, in the lunar dust.

It might actually be possible to see this, though the photos at this time remain unclear and quite blurry.
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Opportunity’s journey on Mars tops 20 miles

7:50 pm

On July 17 the Mars rover Opportunity passed the twenty mile mark on its now seven year journey on Mars. The image below was taken on that day. In the distance, now only about 4,000 feet away, can be seen the rim of Endeavour Crater, fourteen miles wide. Opportunity has been traveling toward that crater now since 2008.

With the rover able to travel about 300 to 500 feet each sol, it should be reaching the crater’s rim sometime in the next few weeks.

Opportunity looks at Endeavour Crater from .8 miles away

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The dying NASA astrophysics program

11:25 am

The dying NASA astrophysics program.

With support from President Barack Obama, the agency’s Earth science budget is at an all-time high. Over the next four months, the planetary science division is due to launch three major missions: to the Moon, to Mars and to Jupiter. And the heliophysics division plans to send a probe plunging into the blistering atmosphere of the Sun, closer than ever before. But because the overall NASA science budget is relatively flat, something had to give. Since 2008, astrophysics funding has plunged relative to other NASA science and relative to physics and astronomy funding at other agencies.

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