November 2005

From SPACE.com — Private Sector, Low-Cost Lunar Plan Unveiled

A newly released study has focused on how best to return people to the Moon, reporting that future lunar missions can be done for under $10 billion – far less than a NASA price tag.

The multi-phased three-year study was done by a private space firm, SpaceDev of Poway, California, and concluded that safe, lower cost missions can be completed by the private sector using existing technology or innovative new technology expected to be available in time to support human exploration of the Moon in the near-future.

Artist rendition of the “rocket chair,” designed to lower people and equipment onto the lunar surface. credit: Spacedev

Fraction of time/cost

NASA has tallied its future lunar mission costs, projecting a figure of $104 billion over 13 years.

According to SpaceDev’s chief, Jim Benson, the private group has found that a more comprehensive series of missions could be completed in a fraction of the time and for one-tenth of the cost of the NASA estimate.

Each mission, as envisioned by SpaceDev, would position a habitat module in lunar orbit or on the moon’s surface. The habitat modules would remain in place after each mission and could be re-provisioned and re-used, thus building a complex of habitats at one or more lunar locations over time, according to a press statement on the study findings.

Benson also noted: “We are not surprised by the significant cost savings that our study concludes can be achieved without sacrificing safety and mission support.”

So – just what does NASA attribute the extra costs to?

In my job, making our products rad-hard is essential; use of TMR (triple-modular redundancy) and SECDED (single error correction/double error detection) are common practices in spacecraft systems design.

Perhaps science can develop a similar technology for the moonbat tinfoil-hat and koolaid crowd who are continuously bombarded by “radiation’ from the hard-left.

Excerpt from NASA – Computer Brains in Space:

When your computer behaves erratically, mauls your data, or just “crashes” completely, it can be frustrating. But for an astronaut trusting a computer to run navigation and life-support systems, computer glitches could be fatal.

Unfortunately, the radiation that pervades space can trigger such glitches. When high-speed particles, such as cosmic rays, collide with the microscopic circuitry of computer chips, they can cause chips to make errors. If those errors send the spacecraft flying off in the wrong direction or disrupt the life-support system, it could be bad news.

Right: The humans inside this spacecraft aren’t the only ones who need protection from space radiation; their computers do, too.

To ensure safety, most space missions use radiation hardened computer chips. “Rad-hard” chips are unlike ordinary chips in many ways. For example, they contain extra transistors that take more energy to switch on and off. Cosmic rays can’t trigger them so easily. Rad-hard chips continue to do accurate calculations when ordinary chips might “glitch.”