Category: Points of Information

Very brief descriptions, with appropriate links, of current or recent news items.

Solar sail conference

3:50 pm

Solar sail engineers from around the world gathered in Brooklyn last week for the Second International Symposium on Solar Sailing. Ben Diedrich, fellow caver, solar sail expert, and the man behind wiki.solarsails.info, gave two papers. He also emailed me to say that “Japan’s contingent gave several talks – many of which compared analysis of deployment, flight, or steering with actual flight data” of Ikaros. A review of the program [pdf] revealed some fascinating uses for solar sails. I like this paper title the best: “Deflecting Apophis with a flotilla of solar sails.” [ed. Apophis is an asteroid with the potential of hitting the Earth.]

Update: Japanese scientists have now announced that they have been able to adjust Ikaros’s attitude using sunlight.

Another update: Ben Diedrich emailed me the link to read the actual proceedings from the conference. See pg 103 to read the paper on using solar sails to deflect Apophis.

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Kepler finds more than 100 Earthlike planets

12:51 pm

In its first six weeks of observation, the Kepler mission apparently found almost 150 planets similar in size to the Earth. The results, learned by accident because a talk given by one of the co-investigators was posted on the web, have not yet been officially announced because the project scientists feel a need for additional time to confirm them. Many of these so-called planets might turn out to be false positives, so some caution is in order.

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ISS and Chinese satellite debris

1:34 pm

Russian mission control has indicated that the debris left over from destruction of a Chinese satellite in 2007 poses a “danger” to the International Space Station. Key quote from a Russian official:

“If the calculations show that the debris is approaching the station at an unacceptably close range, the six astronauts will receive the order to take shelter in the two Russian Soyuz spacecraft which are docked with the ISS.”

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Solar powered plane flies for two weeks

8:10 pm

Zephr, a British-built solar-powered unmanned plane was ordered to return to Earth after flying continuously for two weeks without refueling. Key quote:

Zephyr is set to be credited with a new world endurance record (336 hours, 24 minutes) for an unmanned, un-refuelled aircraft – provided a representative of the world air sports federation, who was present at Yuma, is satisfied its rules have been followed properly.

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Space war update

9:49 am

This Orlando Sentinel analysis of the various Congressional NASA budget proposals working their way through the House and Senate right now concludes, as I have been saying for months, that the future for NASA is not good. Key quote:

The plan orders NASA to build a heavy-lift rocket and capsule capable of reaching the International Space Station by 2016. But it budgets less money for the new spacecraft — about $11 billion during three years, with $3 billion next year — than what the troubled Constellation program would have received. That — plus the short deadline — has set off alarms.

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Swallowing a planet

9:39 am

A star with an appetite: Astronomers have used the Chandra X-Ray Observatory to take a closer look at an engimatic star in the constellation Pisces and found that the dust cloud that surrounds it as well as the unusual and enormous jets that shoot from it probably originated when the star evolved, expanded, and swallowed an orbiting companion, either a giant planet or companion star.

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Journolist scandal-Tucker Carlson editorial

9:38 pm

Tucker Carlson, the editor-in-chief of the Daily Caller, has written a lengthy essay on his organization’s series on the scandal surrounding the defunct liberbal Journolist listserv. Key quote:

We’re not contesting the right of anyone, journalist or not, to have political opinions. (I, for one, have made a pretty good living expressing mine.) What we object to is partisanship, which is by its nature dishonest, a species of intellectual corruption. Again and again, we discovered members of Journolist working to coordinate talking points on behalf of Democratic politicians, principally Barack Obama. That is not journalism, and those who engage in it are not journalists. They should stop pretending to be. The news organizations they work for should stop pretending, too.

Read it all.

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