Earth--Day and Night Regions

Earth--Day and Night Regions

Planetary Positions

Wednesday, February 1, 2012

The Mars Prize

From National Review Online:


The Mars Prize 
Newt Gingrich was right to propose it.
By Robert Zubrin
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Daybreak on Mars (NASA/JPL-Caltech)

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In August 1994, I was invited to have dinner with House Minority Whip Newt Gingrich. At that time, I was a senior engineer working for Martin Marietta Astronautics in Denver, where I had been responsible for inventing a new plan called “Mars Direct.” By radically simplifying the mission architecture and making bold use of Martian resources starting on the very first mission, this concept offered the potential to reduce the cost and schedule of a human Mars-exploration program. NASA analysis had confirmed these advantages, and word had leaked to Newsweek, which featured it as the cover story of its July 25, 1994, issue celebrating the 25th anniversary of the Apollo 11 moon landing. “A manned mission to Mars?” the editors asked. “The technology is already in place. And at $50 billion — one tenth of previous estimates — it’s a bargain.” Gingrich had read the article and wanted to know more.

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Thus it was that I found myself in a closed room in a Chinese restaurant a few blocks from the Capitol, providing a detailed briefing on Mars-mission design to the future Speaker of the House.
Gingrich listened to me closely and became enthusiastic about the possibilities. “I want to support this with legislation,” he said. “But I want to do it in a more free-enterprise kind of way than just gearing up the NASA budget to go to Mars.” I countered by saying that while Mars Direct might cost $30 to $50 billion if implemented by NASA, if done by a private outfit spending its own money, the out-of-pocket cost would probably be in the $5 billion range. Thus if a prize several times this amount were put on offer for the first crew to reach the Red Planet, it might be possible to ignite a privately backed space race. Newt liked the idea and assigned an aide to join me in developing the details. We did so. But a few weeks later, Newt took the House, and amidst the hectic revolution and competing priorities of the Contract with America, our draft bill never saw the light of day. Last week, however, in a speech at Kennedy Space Center, Newt finally put the idea squarely in the center of the political stage by calling for the establishment of a $10 billion prize for the first private organization to successfully land a crew on Mars and return it safely to Earth.
In the context of current realities, here is how the concept would work. Starting immediately, 10 percent of NASA’s budget would be put aside yearly to accumulate a prize fund. There would be at least two prizes: a $5 billion prize to develop and demonstrate a heavy-lift booster capable of lifting at least 100 tons to low Earth orbit, and a $10 billion prize for the first human mission to Mars. In addition, the winners of these prizes would be given contracts for the purchase by NASA of an additional five copies of their flight systems at a recurring cost of 20 percent of the respective prize per copy.
So to start with, NASA would save a good deal of money by having a heavy-lift booster developed for $5 billion, less than a third of the $18 billion it currently plans to spend over the next six years on its Space Launch System — which would deliver only 75 tons to orbit and which is unlikely to ever be completed in any case, as it is being developed in isolation from any payloads or missions that might use it. The nation would have heavy-lift capability — a matter of considerable military utility — and the competitor would be in the black, operating the single most important flight system needed to reach Mars. The team could then move forward to reach the Red Planet, recouping much more than its remaining development costs by raking in the $10 billion prize, after which it could expand its business base by selling to NASA repeat copies of its Mars-mission flight system, thereby allowing the agency to engage in a sustained and economical program of human exploration of the Red Planet. The total cost of the program, including both prizes and all the recurring missions, would be $30 billion. Spent over 20 years (ten until the first Mars mission, plus ten more years for the five follow-ons), this would amount to less than 10 percent of NASA’s budget.
This is a novel approach to human space exploration, which up till now has been entirely run by government. It has a number of remarkable advantages. In the first place, this approach renders cost overruns impossible. Not a penny will be spent unless the desired results are achieved, and not a penny more will be spent beyond the award sum agreed upon at the start. Success or failure with this approach depends solely upon the ingenuity of the American people and the workings of the free-enterprise system, not upon political wrangling. The tactic not only guarantees economical results, but it also promotes quick and smart results. When people have their own money at stake, it’s a lot easier to find and settle on practical, no-nonsense solutions to engineering problems than is ever the case in the complex and endless deliberations of a government bureaucracy.
There are other advantages to this approach as well. Economic growth would be spurred, prior to any government expenditure. Moreover, posting multibillion-dollar prizes for breakthrough accomplishments in space would call into being not only a private space race, but a new kind of aerospace industry, one based on minimum-cost production methods. The existing aerospace industry does not work that way. Rather, the major aerospace companies contract with the government to do a job on a “cost plus” basis, which means that whatever it costs them to do the job, they charge the government a certain percentage more, usually 8 to 12 percent. Therefore, the more it costs the major aerospace companies to do a job for the government, the more money they make. For this reason, their staffs are top-heavy with layer after layer of management bureaucrats, whose sole function is to add to company overhead. Of course, since the government needs proof that the expenses claimed by the aerospace companies are actually being incurred, vast numbers of accounting personnel are also employed, to keep track of how many labor hours are spent on each and every separate contract.


The prize system would change all that, because the company’s profit would be the value of the prize, minus their costs, period. They would have no incentive to run costs up. Quite the contrary, they would have every reason to drive costs down. Furthermore, their actual base costs would be lower, since their accounting and documentation burden would be much less onerous. By creating new aerospace companies based on these principles, or forcing the existing ones to reform themselves, the Mars Prize would end up saving the government and the commercial-satellite industry billions of dollars, as they soon would be able to get all of their required space and launch-system hardware much cheaper.

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No doubt there would be many people who would be skeptical that a mannedMars mission could be flown for $5 billion — but that wouldn’t matter. If the Mars Prize bill were passed, the only thing that would matter was whether a few investors thought it could. Those interested in making the attempt wouldn’t need to convince a sustained majority in Congress that a humans-to-Mars program could be done cheaply; they would only have to convince a Paul Allen or an Elon Musk. The level of acceptable risk would also be much higher than is currently the case. Both of these are crucial: The private sector is often vastly more innovative than the government because a consensus is not necessary to start something new, and it is willing to dare the risks required.
But if nobody takes up the challenge, what then? In that case the whole exercise would have cost the taxpayers absolutely nothing.
Would offering the Mars Prize damage NASA? I don’t think so. Rather, it would result in an infusion of private capital into the best groups at the various NASA centers, as well as into both large and small aerospace companies and university and national-lab research groups, as the private consortia chasing the prize sought to subcontract expertise in particular areas of interest. This would have a very healthy influence on the technologists at NASA, as they would then be driven to develop systems that those seeking to fly a Mars mission actually want, instead of indulging themselves with research into technologies that are not relevant.
The American manned space program has not gone anywhere in nearly 40 years, and currently it intends to spend yet another decade mired in low Earth orbit, achieving nothing, at a cost to the taxpayer on the order of $100 billion. In contrast, for a small fraction of such a sum, the Mars Prize would unleash the courage and inventiveness of the American people, mobilize our technology, grow our economy, inspire our youth, and endow us with great new space capabilities, new knowledge, and a new world and a new frontier of unknown but vast potential. The American people want and deserve a space program truly worthy of a nation of pioneers. In setting forth the Mars Prize, Newt Gingrich has finally put one on offer.
— Dr. Robert Zubrin is president of Pioneer Astronautics and of the Mars Society. His book, The Case for Mars: The Plan to Settle the Red Planet and Why We Must, was recently updated and republished by The Free Press.

Wednesday, January 25, 2012

Flights rerouted as massive solar storm slams Earth

From Yahoo News:


Flights rerouted as massive solar storm slams Earth

Solar radiation from a massive sun storm -- the largest in nearly a decade -- collided with the Earth's atmosphere, prompting an airline to reroute flights and skywatchers to seek out spectacular light displays.
US carrier Delta Air Lines said it had adjusted flight routes for transpolar journeys between Asia and the United States to avoid problems caused by the radiation storm, a spokesman said.
NASA confirmed the coronal mass ejection (CME) began colliding with Earth's magnetic field around 10:00 AM (1500 GMT) Tuesday, adding that the storm was now being considered the largest since October 2003.
Radiation storms are not harmful to humans, on Earth at least, according to the US space agency. They can, however, affect satellite operations and short wave radio.
The storm's radiation, likely to continue bombarding Earth's atmosphere through Wednesday, and its possible disruption to satellite communications in the polar regions prompted the flight rerouting, airline officials said.
Atlanta-based Delta, the world's second largest airline, said "a handful" of routes had their journey adjusted "based on potential impact" of the solar storm on communications equipment, spokesman Anthony Black told AFP.
Routes from Hong Kong, Shanghai and Seoul took a more southerly route after the solar flare erupted on Sunday.
The airline said it would continue to monitor solar activity before return flights to their normal routes.
Due to the unusual intensity of the photons raining on Earth, the spectacular aurora borealis -- the stunning "Northern Lights" display -- which is often seen closer to the Arctic pole at this time of year, has been seen as far south as Scotland and northern England, and at lower latitudes in the United States.
The event started late Sunday with a moderate-sized solar flare that erupted right near the center of the Sun, said Doug Biesecker, a physicist with the National Oceanic and Atmospheric Administration Space Weather Prediction Center.
"The flare itself was nothing spectacular, but it sent off a very fast coronal mass ejection traveling four million miles per hour (6.4 million kilometers per hour)," he told AFP.
Space weather watchers said the best aurora sightings are normally around midnight local time.
Rob Stammes, who runs the Lofoten Polar Light Centre in Lofoten, Norway said the CME's arrival Tuesday had produced a surge in ground currents outside his laboratory.
"This could be a happy day for many aurora watchers," he told aurora tracker website spaceweather.com

Solar storm buffets Earth: How protected is the US power grid?

From Yahoo News:


Solar storm buffets Earth: How protected is the US power grid?

Peak impact of the solar storm was expected Tuesday. Only a few of the strongest storms have a serious impact, but modern society is more dependent on power grids than ever.

Power-grid operators nationwide are on high alert Tuesday as gale-force geomagnetic winds from a solar storm sweep across the Earth – creating potentially dangerous electrical currents that, if severe enough, could damage the US power grid.
The impact of this solar geomagnetic storm – called a “coronal mass ejection” by scientists – is being measured by satellites orbiting the Earth. It is the strongest such storm to hit Earth since 2005.
Still, it was expected to be moderate in intensity, compared with more severe events in the past, with only mild impacts on the power grid, solar storm experts said. Peak impact was expected Tuesday between morning and late in the day, solar weather experts said.
After the flare showed up on satellite sensors Sunday, solar storm advisories were sent by the National Oceanic and Atmospheric Administration to the nation’s independent system operators that oversee regional grid reliability in the nation 10 big power markets.
Solar flares and Northern lights
Beyond problems with satellites and radio communications, power generators and transmission line operators were advised to put the portions of the grid they control in a more defensive, robust posture. The idea is to gird for the impact of billions of tons of charged solar particles striking the Earth's magnetic field at two million miles per hour.
“We do not expect an impact to the bulk power system, however utilities are monitoring their facilities, as usual, for any abnormal energy flows and are prepared to take all appropriate actions to maintain reliability of the bulk power system,” writes Kimberly Mielcarek, spokesman for the North American Electric Reliability Corporation (NERC) in an e-mail. “We’re conferring with NOAA counterparts as needed, and sharing information with the North American bulk power system reliability coordinators.”
Intense debate has swirled over the issue of solar geomagnetic storms – and what, if anything, to do about these infrequent events beyond reactive, defensive actions. Most such storms have little impact on the Earth. Only a handful have had any serious impact over the past century. Still, the US and other modern societies are more dependent on power grids than ever – and damage to the grid could be severe in some cases.
The power grid is 10 times larger than it was in 1921, when the last solar super storm hit, effectively making it a giant new antenna for geomagnetic current. A far stronger solar outburst could overload and wreck hundreds of critical high-voltage transformers nationwide, blacking out 130 million people for months and costing as much as $2 trillion, according to a 2010 Oak Ridge National Laboratorystudy.
In 1859, the strongest geomagnetic storm on record made telegraph systems worldwide go haywire. So much induced current surged through the lines that some telegraph offices caught fire and wires melted. Most recently, a far-weaker 1989 solar storm knocked out power to millions of people in Quebec for about nine hours. Farther south, a large transformer at the Salem Nuclear Power plant in New Jersey was wrecked by the same event.
Should big transformers that would be most affected have surge protectors put on them to prevent them from burning out during a severe storm? How much would that cost? Should the federal government mandate such preparations?
Congress has repeatedly held hearings on the issue. In the previous session of Congress the House of Representatives overwhelming approved legislation that would have mandated that power-grid operators take action. But the Senate did not take up the matter – and new legislation is still sitting, waiting for passage.
For its part, NERC issued a 2010 report warning that geomagnetic storms, along with cyberattack and electromagnetic pulse attack with a nuclear weapon – were three high-impact but low-probability threats worth guarding against. Last May, NERC issued an advisory to regional power system operators identifying an array of steps available to them when NOAA issues warnings of a geomagnetic storm.
Practical actions that can be taken, for instance, include purchasing power from generators closer to where the power is being consumed rather than buying blocks of power that have to be sent on transmission lines that span several states, a move that enhances the stability of the grid by helping maintain necessary voltages on the system.
But debate over just how much damage would occur from such as storm is almost as intense as the storm itself. While experts are reported to largely agree that such storms could knock out big sections of the grid, there is sharp disagreement over how much damage it would do and whether big transformers would burn out and cause longer-term, wide-scale damage to the US economy, US experts say.
“We want to make sure that we aren't rash in our judgments,” says John Kappenman, the solar storm expert who conducted the seminal Oak Ridge National Laboratory study that warned of a worst-case scenario that could put 130 million people out of power for months or longer and cost more than $1 trillion.
To prevent such an unlikely but costly event, blocking devices, the equivalent of surge protectors for those big but possibly vulnerable transformers, could be installed at a cost of around $1 billion nationwide – a small cost when spread across households – and could be a saving grace, Mr. Kappenman says.
“Ultimately we have to figure out the right thing that needs to be done,” he says. “We absolutely have to get this right, because we can't wait for a big storm to learn all the things we need to learn. It's too large a consequence for society.”
Solar flares and Northern lights