Year: 2011

A new study has been released detailing the vision problems experienced by astronauts on space flights longer than six months

3:28 pm

A new study has been released detailing the vision problems experienced by astronauts on space flights longer than six months. Hat tip to Clark Lindsey.

The visual system changes discovered by the researchers may represent a set of adaptations to microgravity. The degree and type of response appear to vary among astronauts. Researchers hope to discover whether some astronauts are less affected by microgravity and therefore better-suited for extended space flight, such as a three-year round trip to Mars.

In their report, Drs. Mader and Lee also noted a recent NASA survey of 300 astronauts that found that correctible problems with both near and distance vision were reported by about 23 percent of astronauts on brief missions and by 48 percent of those on extended missions. The survey confirmed that for some astronauts, these vision changes continue for months or years after return to Earth.

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Sailing to Mars

9:15 am

With the end of the Mar500 simulated mission this coming Friday, the Russians are now proposing an eighteen month simulated Mars mission on board the International Space Station.

The Russians have been pushing to do this on ISS for years. Unfortunately, NASA has always resisted.

Yet, as I wrote in Leaving Earth, we will never be able to send humans to any other planets until we have flown at least one simulated mission, in zero gravity in Earth orbit, beforehand. Wernher von Braun pointed out this reality out back in the 1950s, and that reality has not changed in the ensuing half century. Not only will such a mission tell us a great deal about the medical issues of living in weightlessness for years at a time — issues that are far from trivial — it will give us the opportunity to find out the engineering problems of building a vessel capable of keeping humans alive during interplanetary flight, far from Earth.
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White House officials held talks with China over technology, despite a law banning such talks

8:39 am

The law is such an inconvenient thing: White House officials held technology talks with China, despite a law banning such talks.

In [a General Accountability Office (GAO)] letter, Gibson said OSTP officials violated U.S. law by participating in May in bilateral discussions with Chinese officials in spite of a language included in a 2011 spending bill enacted in April that specifically prohibited such talks. GAO concluded that OSTP officials violated the Anti-Deficiency Act, which prohibits U.S. government employees from spending money that Congress has not appropriated. “If Congress specifically prohibits a particular use of appropriated funds, any obligation for that purpose is in excess of the amount available,” Gibson wrote in the Oct. 11 letter. In May, OSTP officials spent approximately $3,500 to participate in discussions and a dinner with Chinese government officials, according to the GAO letter.

[Congressman Frank] Wolf (R-Virginia), a vocal critic of China’s human rights policies who also testified at the hearing, inserted the language in the 2011 spending bill barring OSTP and NASA from participating in any bilateral activities with China. “Following the law is not voluntary for administration officials,” Wolf said. [emphasis mine]

Sadly, it appears that this administration does not agree with Wolf, and instead considers the law to be nothing more than vague advice they can ignore at will.

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A National Research Council panel today proposed creating a massive data network using the private health records of patients.

2:57 pm

What could possibly go wrong? A National Research Council panel today proposed creating a massive data research network using the private health records of patients.

As a pilot project, the report recommends sequencing the whole genomes of 1 million Americans and combining the data with medical histories to look for genetic links to disease. That may sound expensive—even if sequencing costs drop to $1000 per genome, it would cost $1 billion—but $1000 is in the range of what a routine MRI scan costs, Desmond-Hellmann pointed out. Another pilot project would use metabolomic profiles of patients’ blood to help predict which patients with insulin resistance will go on to develop type II diabetes.

Creating the network over the next decade or two shouldn’t require new funding, the report says. “This is not the Human Genome Project,” said Sawyers. “It’s taking advantage of things happening anyway and bringing them together and doing it at the point of care.” NIH needs to redirect resources and push for more long-term studies that combine research with health care, the report says. Building the network might also require a revision of patient privacy rules and an “evolution” in the public’s attitudes about allowing researchers to use their medical data. [emphasis mine]

The last sentence, highlighted by me, was also the last sentence in the article, added almost as a minor aside. Yet, it is probably the most important aspect of this story, since the right of each of us to control our personal health records is directly threatened by this proposal.

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The offices of French satirical weekly Charlie Hebdo have been destroyed by a petrol bomb, a day after it named the Prophet Mohammed as its “editor-in-chief” for this week’s issue.

11:19 am

The tolerance of Islam: One day after a French satirical weekly published an issue poking fun of Islam and naming Mohammed its “editor-in-chief”, its offices were firebombed and its website hacked with these words:

You keep abusing Islam’s almighty Prophet with disgusting and disgraceful cartoons using excuses of freedom of speech. Be God’s curse upon you!

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Astronomers prepare for an asteroid fly-by on November 8, using the Earth as the spacecraft

9:37 am

Astronomers prepare for an asteroid fly-by on November 8, using the Earth as the spacecraft.

Large enough to cause regional devastation if it were to hit the Earth, 2005 YU55 is the closest pass by an asteroid this big since 1976, and there won’t be another until 2028. The near miss provides an unparallelled opportunity for radar, optical and infrared observations of a mysterious charcoal-black world similar to the type of asteroid that astronauts may one day set foot on.
Radar bonanza “It’s a bit like a spacecraft fly-by with the Earth being the spacecraft,” says astronomer Don Yeomans at NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, California. “It’s going to be an extraordinary target for radar.”

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