Space Flight is the New Nuclear Weapon August 21, 2008
Posted by Brian Pfeifer in Future Development, India, Iran, JAXA, News and politics, Russia, South Korea.add a comment
How can you possibly compare human space flight to nuclear bombs and missiles? The link is not to be found among technologies, but rather in the quest for national prestige.
During the cold war many nations aggressively pursued nuclear development programs. Although they were always clothed in the rhetoric of national defense, nuclear weapons have never been employed for this purpose. You could argue that the US and Russia needed to counter each other’s arsenals, but millions of bullets have been fired, though not one nuclear weapon has been fired in anger since WWII. Additionally, smaller nation had no similar justification.
Iran, North Korea, South Africa, Egypt, India, and Pakistan all created nuclear programs. Were they really needed for national defense? South Africa has gone so far as dismantling their arsenal. That’s a clear sign that it wasn’t required to keep thee nation safe from outside threats. These programs were more about national prestige than about defense.
Even among the superpowers, nuclear weapons development was one way for the two nations to demonstrate their technical superiority. Because the big boys had nukes, any nation that wanted to be viewed as serious contender for regional leadership, they needed nukes too. Iran and Pakistan are both potential leaders for the Islamic world, and hence they needed to demonstrate their capabilities by developing nuclear weapons.
Today, those nukes are becoming less important. There are hints of a new space race. This time any powerful nation can participate. Even private companies can participate. Of course The US and Russia have spaceflight programs, but that’s not new. What is new is the number of other nations announcing a commitment to space flight. In recent years China leaped to the stage with two manned flights. This is a direct challenge to Japan’s quieter program launching astronauts on other nation’s vehicles and contributing serious hardware to the ISS. These two nations also happen to be the biggest powerhouses in Asia, and are flexing their space muscles for their neighbor’s benefit.
South Korea’s Yi So Yeon, who visited the ISS this year is another good example. Although she conducted experiments on orbit, the Korean scientific community was angered by the decision to spend $30 million on her flight. Their complaint is that more money was spent on this one flight than on all other government sponsored scientific projects combined. This is a clear indication that the flight was politically motivated to demonstrate that South Korea is a world player.
Now Iran has announced plans for a manned space program. The national benefits of such a program are murky at best for a nation like Iran. It’s just one more move in the game of international politics and regional control. In the next few months we can expect to hear Pakistan either make a similar announcement, or they will attempt to dismiss Iran’s claims as impossible. As I said before, space flight is the new nuclear program.
The Curse of the Solar Sail August 7, 2008
Posted by Brian Pfeifer in JAXA, NASA, Planetary Society, Russia, Space Startups, SpaceX.add a comment
As you know SpaceX’s recent Falcon1 launch failed to reach orbit. They tracked down the technical cause to extra thrust produced by their new Merlin 1C engine. After engine cutoff, there’s still some fuel remaining in the regenerative cooling channels. When that seeped into the combustion chamber and mixed with residual oxygen, it pushed the first stage into the separated second stage.
There is of course a more sinister cause behind this mishap…The Curse of the Solar Sail.
Some of you may be familiar with the “Mars Gremlin.” Only about 50% of all spacecraft destined for the red planet are successful. We are getting better at dropping landers and rovers on the planet, but it’s still extremely difficult and risky. You may not be aware of it, but there is a similar curse afflicting attempts to put a solar sail into orbit. And yes, The Falcon 1 was carrying NanoSail-D, a solar sail technology demonstrator from NASA.
In 2005, the Planetary Society attempted to launch Cosmos1, another solar sail demonstrator. Unfortunately, the launcher was a bargain basement, submarine launched Volna rocket. The Russian operators hoped to demonstrate that the Volna was ready to launch commercial payloads. Although the booster reached orbital altitude, the payload failed to separate, the spacecraft was lost.
In 2006, JAXA launched a solar sail vehicle piggybacked to ASTRO-F’s M-V booster. While it successfully reached orbit, it failed to deploy its solar sails.
This makes NanoSail-D our third attempt, and our third failure of a solar sail spacecraft. So from where I’m sitting, the only mistake SpaceX made was agreeing to launch a solar sail. Solar sails have great potential to support long duration robotic missions, but before that happens, we’ll have to defeat the Curse of the Solar Sail.
