“A Dragon by the tail.”
The berthing of the privately-built Dragon capsule with the International Space Station on May 25 requires a bit of perspective to make clear the importance of this achievement.
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Category: Essays And Commentaries
Long essays or op-ed length commentaries on the issues of the day or on topics of special interest.
Forecasting hurricanes
NOAA today announced its prediction for the upcoming Atlantic Ocean hurricane season, calling for between 9 and 15 tropical storms in 2012, with 4 to 8 becoming full blown hurricanes. The NOAA release can be seen here.
To me, the range of the prediction is so wide it really doesn’t mean anything. Moreover, I wonder about the reliability of these predictions.
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The conflict between exploration and history
The Google X Prize has agreed to recognize the guidelines created by NASA for protecting the historic first landing sites on the Moon.
In glancing at the guidelines, I found it fascinating that it only mentions the Soviet lunar rover sites as an aside, noting their value but stating that
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A rocket launch pushes Congress towards free enterprise
Several key elected officials who have generally been hostile to commercial space have commented positively to the successful launch of the Dragon capsule last night.
First, Senator Kay Bailey Hutchison (R-Texas) released this short statement:
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One step closer to a robust competitive space industry
Not surprisingly, last night’s successful launch of Falcon 9 has produced a large number of news articles. Rather than list them all, go to spacetoday.net for the links.
However, I think Clark Lindsey, in describing Elon Musk’s reaction to the successful launch, captured the most important aspect of last night’s success:
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Some thoughts on the scrub
Last night Falcon 9’s computers shut the launch down at T minus zero seconds after sensing a high chamber pressure in one first stage engine.
Two thoughts, one good, one not so good.
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Shut it down
Our government in action: An NIH nationwide study to track hundreds of thousands of children from birth to age 21 is wracked with budget and management problems.
All told, this study has already cost the taxpayers almost a billion dollars for the enrollment of only 4,000 children, not the 100,000 envisioned. That’s about $250,000 per child, an amount that seems incredibly high.
In addition to the above problems, it appears there are scientific ones as well:
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The McCarthyism of the left
A businessman who has been attacked by the Democrats and the Obama campaign simply because he has supported Mitt Romney has lost hundreds of customers.
Nor is this the first time the left has gone after private citizens who took political positions they didn’t like:
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The Sun fizzles in April
NOAA’s Space Weather Prediction Center today posted its monthly update of the ongoing sunspot cycle of the Sun. I have posted the new graph for April below the fold.
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Killing private space
The financial foolishness in Congress, by Republicans this time, continues. In making its budget recommendations for NASA, the report [pdf] of the House Appropriations Commerce, Justice, Science, and Related Agencies subcommittee also demands that NASA immediately choose one commercial company for its commercial space program. (Hat tip to Clark Lindsey for spotting this.)
The number of ways this action is counter-productive almost can’t be counted.
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More problems for Dark Matter
A new study by astronomers has found a vast structure of satellite galaxies and star clusters aligned perpendicular to the Milky Way and extending outward above and below the galaxy’s nucleus by as much as a million light years.
In their effort to understand exactly what surrounds our Galaxy, the scientists used a range of sources from twentieth century photographic plates to images from the robotic telescope of the Sloan Deep Sky Survey. Using all these data they assembled a picture that includes bright ‘classical’ satellite galaxies, more recently detected fainter satellites and the younger globular clusters.
“Once we had completed our analysis, a new picture of our cosmic neighbourhood emerged”, says Pawlowski. The astronomers found that all the different objects are distributed in a plane at right angles to the galactic disk. The newly-discovered structure is huge, extending from as close as 33,000 light years to as far away as one million light years from the centre of the Galaxy.
An animation illustrating this galactic distribution is posted below the fold. You can read the actual preprint paper here.
The problem with this polar alignment with the Milky Way’s core is that the theories for explaining the distribution of dark matter do not predict it.
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It’s not just a good idea, it’s the law!
Mexico has passed its own very strict climate change law.
The new law contains many sweeping provisions to mitigate climate change, including a mandate to reduce emissions of carbon dioxide by 30% below business-as-usual levels by 2020, and by 50% below 2000 levels by 2050. Furthermore, it stipulates that 35% of the country’s energy should come from renewable sources by 2024, and requires mandatory emissions reporting by the country’s largest polluters.
Some predictions:
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A new launch schedule for Cygnus
Orbital Sciences has released an updated launch schedule for its Antares rocket and Cygnus capsule.
- Third quarter 2012 – Antares First-Stage Static Fire Test at Wallops
- Third quarter 2012 – Antares Test Flight for COTS
- Fourth quarter 2012 – COTS Demonstration Mission to ISS*
- First quarter 2013 – CRS Mission #1 to ISS
The significance?
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Dark matter disappears
The uncertainty of science: A new study has found no evidence of dark matter within 13,000 light years of the Sun, something that had not been expected.
According to widely accepted theories, the solar neighborhood was expected to be filled with dark matter, a mysterious invisible substance that can only be detected indirectly by the gravitational force it exerts. But a new study by a team of astronomers in Chile has found that these theories just do not fit the observational facts. This may mean that attempts to directly detect dark matter particles on Earth are unlikely to be successful.
These findings will be as controversial as the now abandoned faster-than-light neutrino results last fall. Here, however, the new data is likely going to be more robust, which will cause the entire astrophysical community some real conniptions.
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Senate panel proposes major NASA/NOAA budget changes
A Senate panel today proposed shifting the responsibility for building weather satellites from NOAA to NASA.
It is very unclear from this article why the Senate panel proposed this shift. They claim it will save money but I don’t see how.
What I can guess is that there is probably a turf war going on in Congress over this money. For example, shifting these weather satellites to NASA almost certainly means that the Goddard Space Flight Center in Maryland will get more money, which is almost certainly why Senator Barbara Mikulski (D-Maryland) is for it.
One thought however: NASA generally focuses on individual missions, not long term operational stuff like weather. I suspect it probably is not a good idea to give this work to NASA.
The same article above also outlined the panel’s proposals for other areas of NASA’s budget. To me, the key issue is the budget for commercial space. The White House requested $830 million. The Senate panel has instead proposed $525 million.
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Coming and going
There are really only two important stories today concerning space exploration. The story that is getting the most coverage is the big news that the space shuttle Discovery is making its last flight, flying over Washington, DC, as it is delivered to the Smithsonian for permanent display.
- CBS: Space shuttle Discovery viewing guide: Final flight Tuesday over DC.
- WTOP: Space shuttle Discovery salutes nation’s capital.
- Washington Times: Space shuttle Discovery ready for final flyover.
- Associated Press: Space shuttle Discovery ready for voyage to museum.
- Space.com: Space shuttle Discovery to take last-ever flight today.
- Discovery News: Shuttle Discovery begins new life as museum piece.
Of these stories, only Irene Klotz of Discovery News seems to really get it. This is not an event to celebrate or get excited about. It is the end of an American achievement, brought to a close probably three to five years prematurely so that the United States now cannot even send its own astronauts to its own space station.
The other news, actually far more important, has gotten far less coverage, and includes three different stories all really about the same thing.
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An up and down Sun, for real this time
Though I am a bit late in covering this story (due to moving, unpacking, Passover, and an unexpected visit to the dentist), NOAA’s Space Weather Prediction Center on April 9 released its monthly update of the ongoing sunspot cycle of the Sun. The most recent graph is below the fold.
In order to understand the context of this new graph, however, it is necessary to make a correction and clarification.
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The ring and planets of Formalhaut
New observations from the new ground-based submillimeter ALMA telescope in Chile have given astronomers a clearer picture of the ring/disk of debris orbiting the nearby star Formalhaut. Moreover, the data suggests that two planets that are shepherding that ring are smaller than previously thought, no larger than a few times the size of the Earth.
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Passover
For the next two days posting will be light. I am in Chicago visiting family for Passover, the annual Jewish holiday celebrating the release of the Jews from slavery in Egypt. During the Seder meal, Jews read the Haggadah, which retells the story of the Jewish slavery in Egypt and their escape, with the idea of reminding each person what is like to be a slave, and then to be free. As it says in the Haggadah,
In every generation each individual is bound to regard himself as if he had gone personally forth from Egypt.
Tonight, this is what Jews do. It would be nice if all people reflected on this and did the same.
The actual cost to launch
In writing this short post on the efforts of Lockheed Martin and Orbital Sciences to launch rockets for the small satellite market, Clark Lindsey made this comment:
It costs around $50 million to launch a Orbital Sciences Minotaur 4, which can put 1,730 kg into LEO while the Lockheed’s Athena 2 will cost around $65 million to put 1,712 kg into LEO. SpaceX currently posts charges $54M – $59.5M for launching to LEO 10,450 kg (equatorial) and 8,560 kg (polar). If SpaceX is able to sustain these prices in routine operation, it will obviously result in some disturbance to the launch industry.
Let’s deconstruct these numbers again, this time listing them by the cost per kilogram:
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Blowing in the wind
Want to see where the wind is blowing? Check out this website, which shows an animated map of the wind patterns blowing across the continental United States, continually updated.
A strange lunar crater
Lunar Reconnaissance Orbiter recently celebrated its 1000th day of imaging in orbit around the Moon, snapping images and cataloging the Moon’s geology.
Only a week before the science team posted a spectacular oblique view of Ryder Crater. The image is visible below the fold, along with a close-up of the crater’s strange hump-backed boulder-strewn floor.
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Pick a destination already!
A report issued today illustrates once again to me that those running our space program in both Congress and the Obama administration have a profound lack of common sense or basic intelligence:
The NASA Advisory Council (NAC) – a body that provides the NASA Administrator with counsel and advice on programs and issues of importance to the Agency – has insisted a human exploration plan, or at least a destination, should be selected as soon as possible.
This request specifically applies to the Space Launch System (SLS), the heavy-lift rocket mandated by Congress that will use the Orion capsule. SLS is also the same rocket system that is costing the taxpayers $3 billion per year, and is expected to cost between $18 to $60 billion total by the time it flies its first operational mission in about nine years. The advisory council also noted that
While the vehicle hardware development is now moving forward at full speed, specific destinations – or a roadmap – is still lacking from NASA’s exploration plan.
It took nine different committees plus a central committee formed from the original nine committees to come to this Earth-shattering conclusion.
To put it in plain English, Congress and the Obama administration have committed billions of taxpayer dollars to the construction of a rocket and manned capsule without ever putting much thought into the specific mission they want to send that rocket and capsule on.
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Stupidity on display
In hearings Wednesday, several members of Congress suggested that NASA force the new competing commercial space companies to combine their efforts in order to save money.
Rep. Frank Wolf (R-Va.) asked NASA Administrator Charles Bolden during a March 21 hearing on the agency’s 2013 budget the same question he asked of the White House’s chief science adviser last month: would NASA’s partnership with commercial companies to develop astronaut transports be cheaper if the companies competing for NASA funds combined their efforts into a single “all for one and one for all” project?
Similarly, Senator Kay Bailey Hutchison (R-Texas) made the same stupid argument in her continuing effort to keep the funding of the Space Launch System, the rocket-formerly-called-Constellation, as high as possible, at the cost of cutting everything else in NASA if necessary.
If you needed any evidence that members of Congress are ignorant idiots, you only need read the comments of these elected officials at these hearings to get your proof. Wolf or Hutchison as well as several others from both parties very clearly haven’t the slightest idea what these various space companies are building. Nor do they have the faintest notion of the difficulties entailed in building these manned space vessels.
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An up and down Sun
Late last week NOAA’s Space Weather Prediction Center released its monthly update of the ongoing solar cycle sunspot activity, covering February 2012. Though I am slightly late in posting it, as I do every month, you can now see the full graph below the fold. I have also created a close-up of the graph’s relevant area, shown on the left, because it is hard to decipher what is happening on the full graph.
Since the Sun began it ramp up to solar maximum back in 2009, the pattern has been consistent, two steps forward, one step back. First there are several months in a row in which the number of sunspots show a steep rise, followed immediately by several months in which the sunspot numbers decline just as steeply, though by not as much. All told, since 2009 we have seen this pattern repeat four times.
February’s numbers have continued that pattern.
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Playing hardball
The director of Russia’s manned program told the press today that the Russians do not have that a signed contract with NASA to fly astronauts to ISS after 2015, despite NASA’s announcement that such an agreement exists.
If true, NASA’s management has committed a very serious error which will cost the U.S. a great deal of money in the coming years, especially if there are significant delays in getting the new commercial companies online to provide the U.S. an American capability for ferrying humans to orbit.
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A Thank You From Japan
One year ago today Japan was hit with one of the most powerful earthquakes in recorded history, followed almost immediately by one of the most powerful tsunamis in recorded history. Since then, that nation and its people have done an incredible job recovering from that disaster, proving once again that there really is no limit to what humans can do.
The video below is their thank you to the rest of the world for the help and support brought to Japan by people everywhere. As they say, “Arigato.”
I say, bless you all for never giving up.
Another thousand exoplanets from Kepler
Kepler today released an updated catalog of candidate exoplanets observed during the space telescope’s first sixteen months of observations. In this release, they list more than a thousand new exoplanet candidates, almost two hundred of which are Earth-sized. Among the new exoplanet candidates, twenty-five are in the habitable zone!
Now for some details.
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“Science in the service of politics.”
Climate scientist Richard Lindzen of MIT spoke before a public meeting of the House of Commons in Great Britain yesterday. You can read his entire speech here [pdf]. Please do. He know his stuff. More important, he begins his presentation by immediately accepting these points:
- Carbon dioxide is increasing in the atmosphere.
- There is a greenhouse effect.
- There has been a doubling of CO2 in the past 150 years.
- There has probably been a warming of about 0.8 degrees Celsius in the past 150 years.
- Increasing CO2 alone should cause some warming.
He then notes that while none of these points are controversial among serious climate scientists, none of these facts are a cause for alarm.
The evidence is that the increase in CO2 will lead to very little warming, and that the connection of this minimal warming (or even significant warming) to the purported catastrophes is also minimal. The arguments on which the catastrophic claims are made are extremely weak – and commonly acknowledged as such. They are sometimes overtly dishonest. [emphasis mine]
Why things break in space
Updated and bumped: I will be discussing this story on the the John Batchelor Show tonight, February 17, Friday, 12:50 am (Eastern), and then re-aired on Sunday, February 19, 12:50 am (Eastern).
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Someday, humans will be traveling far from Earth in large interplanetary spaceships not very different than the International Space Station (ISS). Isolated and dependent on these ships for survival, these travelers will have no choice but to know how to maintain and repair their vessels whenever something on them should break.
And things will break. Entropy rules, and with time all things deteriorate and fail.
Each failure, however, is also a precious opportunity to learn something about the environment of space. Why did an item break? What caused it to fail? Can we do something to prevent the failure in the future? Finding answers to these questions will make it possible to build better and more reliable interplanetary spaceships.
ISS is presently our only testbed for studying these kinds of engineering questions. And in 2007, a spectacular failure, combined with an epic spacewalk, gave engineers at the Johnson Space Center a marvelous opportunity to study these very issues.
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