Lifeboat Foundation: Safeguarding Humanity
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Category: space – Page 1062

The New Scientist discusses a recent study that advocates using of an ion beam generator on the moon to allow the use of far smaller rockets to move from the moon to other locations in space. The ion beam generator would need several hundred megawatts of electrical power from either a large solar cell array or nuclear power.

I have discussed the need on my website to make gigawatts of power on the moon and in orbit in order to begin serious development and colonization efforts.

An alternative to ion beams would be magbeam, a plasma based approach for accelerating spaceships

The Lifeboat Foundation supports space habitats and Asteroid shields

The beam approaches all require large power sources. The fastest way to achieve this would be to build a lightweight nuclear power source on the earth and launch it into a high orbit (a lagrange point) or the moon.

The power could also be used to power mining and industrial machinery on the moon which has uranium and thorium and the raw materials to make more nuclear reactors. Containment and waste issues on the moon would be less of an issue until colonization happened in a big way. The colonization is better place in rotating structures in orbit, so the moon could be a power and material source for primarily orbital colonization.

Large scale structures for solar power and for space stations could be made with mostly existing or near term technology using magnetically inflated cables Using superconducting wire a lightweight structure could be launched that would unpack from an existing rocket and then expand to be 1 kilometers in diameter or more.

The main points are large scale space architecture is possible in the near term. Large power sources are needed and can be built. We can create viable space habitats with large viable populations properly engineering the technology that we have now. This would be superior to the lunar program that NASA has proposed which lacks the scale necessary to establish viable Lifeboat colonies.

On CNN:

WASHINGTON (CNN) — China last week successfully used a missile to destroy an orbiting satellite, U.S. government officials told CNN on Thursday, in a test that could undermine relations with the West and pose a threat to satellites important to the U.S. military.

According to a spokesman for the National Security Council, the ground-based, medium-range ballistic missile knocked an old Chinese weather satellite from its orbit about 537 miles above Earth. The missile carried a “kill vehicle” and destroyed the satellite by ramming it.

The test took place on January 11. (Watch why the U.S. has protested the missile strike Video)

Aviation Week and Space Technology first reported the test: “Details emerging from space sources indicate that the Chinese Feng Yun 1C (FY-1C) polar orbit weather satellite launched in 1999 was attacked by an asat (anti-satellite) system launched from or near the Xichang Space Center.”

A U.S. official, who would not agree to be identified, said the event was the first successful test of the missile after three failures.

The official said that U.S. “space tracking sensors” confirmed that the satellite is no longer in orbit and that the collision produced “hundreds of pieces of debris,” that also are being tracked.

The United States logged a formal diplomatic protest.

“We are aware of it and we are concerned, and we made it known,” said White House spokesman Tony Snow.

Several U.S. allies, including Canada and Australia, have also registered protests, and the Japanese government said it was worrisome.

China’s leaders are merely acting in the country’s best interests. In any major conflict, the ability to knock satellites out of the sky could be invaluable. That is why the US is making such a fuss about this. The leaders of China are only human — and humans have the tendency to engage in arms races. What can be done to prevent the militarization of space? If you have ideas, give them in the comments.

Update: here’s another article from the BBC.

From Yahoo News:

Astrophysicist Stephen Hawking says he wants to undertake a zero-gravity flight aboard an aircraft this year as a precursor to a journey into space.

“This year I’m planning a zero-gravity flight and to go into space in 2009,” he was quoted as saying in The Daily Telegraph newspaper.

Hawking, 65, has said he hopes to travel on British businessman Richard Branson’s Virgin Galactic service, which is scheduled to launch in 2009. The service will charge space tourists about $US200,000 ($A257,000) for a two-hour suborbital trip 140 km above the Earth.

Branson was keen to help the scientist realise his dream of space flight, Virgin Galactic spokesman Stephen Attenborough said.

“Richard is very determined that if we can possibly make this happen, then it should,” Attenborough said.

He said the company had not discussed the issue of payment with Hawking.

One of the best-known theoretical physicists of his generation, Hawking gained fame with the best-selling book A Brief History of Time.

The scientist, who uses a wheelchair and communicates with the help of a computer because he suffers from a neurological disorder called amyotrophic lateral sclerosis, has done groundbreaking research on black holes and the origins of the universe, proposing that space and time have no beginning and no end.

Hawking has warned that the survival of the human race depends on its ability to find new homes elsewhere in the universe because there’s an increasing risk that a disaster will destroy Earth.

See you in orbit, Dr. Hawking!