Category: Points of Information

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

Despite the significant increase in the Arctic icecap’s size this winter, satellite data of the icecap’s actual volume and thickness suggest that the new ice was quite thin.

9:54 am

The uncertainty of science: Despite the significant increase in the size of the Arctic Ocean’s icecap this winter, satellite data of the icecap’s actual volume and thickness suggest that the new ice was quite thin.

Prof Andy Shepherd, from Leeds University, said: “Now that we have three years of data, we can see that some parts of the ice pack have thinned more rapidly than others. At the end of winter, the ice was thinner than usual. Although this summer’s extent will not get near its all-time satellite-era minimum set last year, the very thin winter floes going into the melt season could mean that the summer volume still gets very close to its record low,” he told BBC News.

It is not surprising that the ice was thin, considering that the icecap was recovering from a record low the year before. The scientific question, however, is whether the cap will thicken in the coming years or continue to thin out. That it has recovered somewhat in size might be a onetime jump as the decline continues, or it might be indicative of a new growing trend.

Leave a comment

SpaceX has again delayed the launch of its first Falcon 9 commercial launch.

9:41 am

SpaceX has again delayed the launch of its first Falcon 9 commercial launch.

This delay appears to be only one day, from Saturday to Sunday, September 15. The static fire test of the rocket on the launchpad appears set for today, and I suspect the one day delay was to give them more time to analyze the results of today’s test.

Also, this quote from the article shows the risks involved with this first launch of the upgraded Falcon 9:

The launch would be the first for the next-generation Falcon 9-R, designed not only to be more powerful but to have the potential for re-use — that would be the “R” in “9-R” (which Harris incidentally said is pronounced “niner” according to SpaceX CEO Elon Musk).

Space News’ Irene Klotz talked to Musk late last week and found some nervousness going into the launch. “We’re being, as usual, extremely paranoid about the launch and trying to do everything we possibly can to improve the probability of success, but this is a new version of Falcon 9,” Musk told her. [emphasis mine]

Leave a comment

The first commercial launch of SpaceX’s Falcon 9 has been pushed back to September 14.

9:48 am

The first commercial launch of SpaceX’s Falcon 9 has been pushed back to September 14.

I must apologize to my readers. I completely missed this news item last week. However, in my defense SpaceX has been unusually tight-lipped this time with information.

The launch itself also seems dependent on a hot fire engine test that SpaceX wishes to do first, which means that the September 14 date might still be pushed back again.

2 comments

The first and second launch of the Space Launch System are likely to be delayed due to budget issues.

7:56 am

The first and second launch of the Space Launch System are likely to be delayed due to budget issues.

“It’s very clear that we could have slips of a year or two,” said [deputy administrator Lori] Garver, referring to both the 2017 launch — which won’t have a crew — and the first planned flight of NASA astronauts aboard the SLS rocket in 2021.

Garver claims that it is insufficient funds for SLS that will cause the delays, despite getting $3 billion per year, or ten times the money the private commercial program is getting.

I’m on a hike today, but so any additional comments about this insanity will have to wait.

5 comments

The Russians are including a bathroom in their next generation manned vehicle, something they note Orion will not have.

2:47 pm

The competition heats up: The Russians are including a bathroom in their next generation manned vehicle, something they note Orion will not have.

A new Russian spaceship for trips to the moon or the International Space Station will have at least one crucial advantage over its American rival – a toilet, one of the craft’s developers said Friday. “I don’t think I need to elaborate on how a waste-collection system is much more comfortable than the diapers that astronauts aboard the [US spacecraft] Orion will have to use,” said Vladimir Pirozhkov of the Moscow Institute of Steel and Alloys, which is involved in the development of the Russian ship. “Besides, the Russian segment of the International Space Station [ISS] has a limited number of toilets, which means a spacecraft with an extra ‘space toilet’ will come in handy,” he added.

As much as I am skeptical of Orion and SLS, I am equally skeptical of the Russian claims of a next generation manned spacecraft. They have been unveiling these proposals now for more than a decade, with nothing ever getting built. With Orion we at least have an existing capsule, even if its bulkhead needed to fixed.

Though I will agree with them on one point: Putting a toilet on a vehicle intended to go beyond Earth orbit, which Orion is supposed to be designed to do, makes common sense. That NASA didn’t include this essential item in Orion reveals to us the unseriousness of the spacecraft.

12 comments

While the launch industry eagerly awaits SpaceX’s first commercial Falcon 9 launch on September 10, Arianespace has been signing up customers.

10:16 am

The competition heats up: While the launch industry eagerly awaits SpaceX’s first commercial Falcon 9 launch on September 10, Arianespace has been signing up customers.

Arianespace Chief Executive Stephane Israel said Aug. 29 after the last Ariane 5 launch that the company has booked around 300 million euros ($400 million) in new orders in recent weeks, bringing this year’s total contract volume to 1 billion euros. Industry officials said the contracts are for government missions in Brazil and Japan, and commercial operators in Brazil, the United States, Mexico and Spain.

The Ariane 5 is incredibly reliable, having successfully completed more than fifty launches in a row. It is also much more expensive that Falcon 9, which is expected to cost a customer about half as much to get a payload into orbit.

Until SpaceX proves Falcon 9, Arianespace will be in a strong position to get customers. Once Falcon 9 starts flying regularly however, Arianespace will begin to lose business to this cheaper alternative. Thus, the new contracts will help tide the company over while they scramble to figure out how to reduce costs in order to compete.

In related news, SpaceX readies the new upgraded Falcon 9 for launch.

One comment

A engineering problem during construction of one of the shuttle-derived solid rocket boosters for SLS is causing delays.

10:06 am

A engineering problem during construction of one of the shuttle-derived solid rocket boosters for SLS is causing delays.

[The] original test target of mid-2013 slipped when an issue with the aft segment [of the booster] was found. Inspection of the segment showed it was contained an area where propellant had debonded from the inside of the segment wall. Following analysis – which notably found no voids in the propellant itself – NASA decided to ask ATK to scrap the segment and cast a replacement.

Preparations … continued, with the shipping and integration of forward and center segments at the test site, while ATK went to work to replace the aft segment, following approval – post investigation – from NASA’s Marshall Space Flight Center. After ATK successfully cast the replacement segment in July, technicians carried out routine ultrasound and x-ray tests. Unfortunately, the tests showed this segment had also had similar voids. [emphasis mine.]

The Space Launch System (SLS), was mandated by Congress to use as much shuttle-derived components as possible in order to supposedly save money as well as employ as many of the companies that built those components as possible. In reality, however, every one of those components has required significant redesign to make them work in SLS. In the case of the solid rocket boosters, the four segment shuttle boosters were not powerful enough. They had to be expanded to five segments.

Moreover, it appears from this article it was other technically unnecessary changes to the boosters that are now causing this problem.
» Read more

3 comments

Obamacare is forcing a number of artist organizations to cancel health insurance for its members.

11:29 pm

Finding out what’s in it: Obamacare is forcing a number of artist organizations to cancel health insurance for their members.

The College Art Association website posted a notice this month: “The New York Life Insurance Company recently informed CAA that it will no longer offer catastrophic healthcare coverage previously available to CAA members.” Why? Because it “is no longer an option” for “associations whose members reside in different states” to provide such coverage. These members will have to seek help from their home states’ newly formed Obamacare exchanges. Plans offered to Modern Language Association (MLA) members will suffer a similar fate.

Other insurance providers are reporting cancellations. The Entertainment Industry Group Insurance Trust (TEIGIT) website posts the following notice: “All individual and/or Sole Proprietor Health Insurance will terminate January 1, 2014. This includes plans acquired as Members of our Affiliated Associations & their groups.” Those affiliated associations include the American Federation of Television and Radio Artists, the Dramatists Guild, the Graphic Arts Guild, NY Women in Film and Television, and many others.

From my experience in the movie industry it is almost certain that the vast majority of these artists, writers, musicians, and actors are Democrats who blindly supported Obama and Obamacare. I am also certain that, even after this disaster, they will still blindly support the Democratic Party.

4 comments

NASA has put Orbital Sciences on notice that, assuming its demo cargo mission to ISS in two weeks is a success, the company might have to do it again as soon as December.

11:06 pm

The competition heats up: NASA has put Orbital Sciences on notice that, assuming its demo cargo mission to ISS in two weeks is a success, the company might have to do it again as soon as December.

SpaceX is supposed to fly its next cargo mission first, but NASA thinks that flight will be delayed because of development issues with the upgraded Falcon 9 rocket.

2 comments

A Russian astronaut, scheduled to fly to ISS in 2015, has unexpectedly resigned.

11:02 pm

An experienced Russian astronaut, scheduled to fly to ISS in 2015, has unexpectedly resigned.

No explanation other than that he found “a more interesting job” was given for his resignation, but this paragraph might give us a hint:

The Gagarin Cosmonaut Training Center has been rocked by reorganization problems since 2009, when it was transferred from the Defense Ministry to the civilian Federal Space Agency. An unnamed Russian cosmonaut told the Moskovsky Komsomolets newspaper last year that the prolonged reorganization had affected cosmonauts’ income and career prospects, breeding discontent in the ranks.

Leave a comment

Orbital Sciences prepares its Cygnus capsule for its first flight to ISS, set for launch on September 17.

8:59 am

The competition heats up: Orbital Sciences prepares its Cygnus capsule for its first flight to ISS, set for launch on September 17.

Orbital officials said the Cygnus spacecraft was scheduled to be attached to the upper stage of the Antares launcher Wednesday. Final cargo loading into the Cygnus spacecraft’s pressurized module is set for Saturday, followed by its enclosure inside the rocket’s 12.8-foot-diameter payload fairing.

Rollout of the Antares rocket from its horizontal integration facility to the launch pad one mile away is expected Sept. 13.

September will be a busy and important month for private space. We also will have SpaceX’s first commercial launch with its Falcon 9 rocket. If both are successful, the trend away from a big government space programs shall accelerate.

Leave a comment

Despite the astronauts’ success on ISS in recreating the spacesuit water leak, NASA engineers still do not know its cause.

3:54 pm

Despite the astronauts’ success on ISS in recreating the spacesuit water leak, NASA engineers still do not know its cause.

What is unstated about this problem is that, because we used to have a big space shuttle with lots of cargo capacity, the American spacesuit was designed to be maintained and repaired on the ground. In the past the next space shuttle flight would have brought a new spacesuit to the station while taking this defective suit back to Earth for analysis and repair. Now that we don’t have a big space shuttle, our complex spacesuits are far more difficult to troubleshoot.

The solution? First, keep it simple. The Russians, limited by the capacity of their Progress and Soyuz capsules, made their Orlan spacesuit very simple and easy to use.

Second, get as many redundant replacements of the shuttle operating as soon as possible.

3 comments

Astronomers submit a slew of proposals for using the partly crippled Kepler space telescope.

3:32 pm

Astronomers submit a slew of proposals for using the partly crippled Kepler space telescope.

Ideas range from a survey of potentially hazardous near-Earth objects to a study of Jupiter-sized exoplanets in large orbits. Kepler scientists will sort through the proposals and decide by 1 November which ones, if any, to recommend to NASA headquarters for further review.

Sadly, none of these ideas excites me very much. The tragedy here is that we have this really good optical telescope above the atmosphere, and we can’t point it accurately enough to use it.

2 comments

“The [US Justice Department] just stuffed a rag in Barrett Brown’s mouth, as well as his lawyers.”

3:15 pm

“The [US Justice Department] just stuffed a rag in Barrett Brown’s mouth, as well as his lawyers.”

The case might be complicated, and Brown might have even broken a reasonable privacy law, justifying his imprisonment. Nonetheless, it disturbs me greatly that the government’s response is to silence the man. Something about this stinks.

Leave a comment

A college professor threatened a student during in a rant in which he insulted Republicans and even Mitt Romney’s wife.

1:15 pm

Leftwing civility: A college professor threatened a student during in a rant in which he insulted Republicans and even Mitt Romney’s wife.

Video at the link. The threat is veiled but it there nonetheless. The whole rant itself is quite disgusting, especially for a teacher to do it in class, when he has a captive audience.

Leave a comment
1 … 727 728 729 730 731 … 965