Category: Points of Information

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

NASA halting work on its J-2X rocket engine

6:30 pm

Par for the course: NASA, having successfully completed a 500 second test of the J-2X rocket engine, has halted all further development work on that engine.

The NASA program to build the heavy-lift rocket is expected to get $1.2 billion per year, and yet it doesn’t have enough money to develop both its first and second stages simultaneously? Kind of proves my point that NASA’s fixed labor costs, imposed on it by Congress, makes it impossible for the agency to ever build anything at a competitive price.

The result: every project dies stillborn.

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Toxic Russian Mars probe aims for Earth

5:50 pm

It now looks like the stranded and toxic Russian Mars probe, Phobos-Grunt, is likely aimed at Earth.

We are looking at an uncontrolled toxic reentry scenario. Phobos-Grunt . . . is fully-laden with unsymmetrical dimethylhydrazine and nitrogen tetroxide; that’s ten tons of fuel and oxidizer. The probe itself weighs-in at only three tons. . . . Phobos-Grunt’s batteries are draining and its orbit is degrading. It looks as if the probe will reenter later this month/early December. NORAD is putting a Nov. 26 reentry date on Phobos-Grunt.

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Supercommittee to the rescue

12:08 pm

The Supercommittee to the rescue!

They’re the new superhero group of Superfriends from the Supercongress who are going to save America from plummeting over the cliff and into the multitrillion-dollar abyss. There’s Spender Woman (Patty Murray), Incumbent Boy (Max Baucus), Kept Man (John Kerry) and many other warriors for truth, justice and the American way of debt. The Supercommittee is supposed to report back by the day before Thanksgiving on how to carve out $1.2 trillion dollars of deficit reduction and thereby save the republic.

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It looks bad for Phobos-Grunt

8:57 am

It looks bad for Phobos-Grunt.

“Overnight, several attempts were made to obtain telemetric information from the probe. They all ended with zero result,” Interfax quoted a source in the Russian space sector as saying. “The probability of saving the probe is very, very small,” added the source, who was not identified.

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Man shot and killed “near” Occupy Oakland camp

8:28 pm

Peace and love: A man was shot and killed at the Occupy Oakland camp today. Plus, an immediate effort by the protesters to squelch the press:

Reporter Aimee Allison of the Chronicle says she was attacked when she tried to take a cell phone photo. And she wasn’t the only one: “A few feet away a TV cameraman was shooting footage and a crowd of twenty or so men attacked and punched him, forcing him over the railing of the 14th Street BART Station.” Which means, even in the best-case scenario, there was an unconnected murder right next to the camp and a mob of protesters decided to do “damage control” by beating the hell out of journalists who were trying to report on it. That’s where we’re at here.

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NASA picks the Delta 4 Heavy to launch Orion into orbit on its first test flight

8:03 pm

NASA has chosen the Delta 4 Heavy rocket to launch the Orion capsule into orbit for its first test flight in 2014.

So, tell me again why NASA needs to spend $18 to $62 billion for a new rocket, when it already can hire Lockheed Martin to do the same thing? Though the Delta 4 Heavy can only get about 28 tons into low Earth orbit, and only about 10 tons into geosynchronous orbit — far less than the planned heavy-lift Space Launch System rocket — Boeing Lockheed has a variety of proposed upgrades to Delta 4 Heavy that could bring these numbers way up. Building these upgrades would surely be far cheaper than starting from scratch to build SLS.

Corrected above as per comments below.

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Scientists are considering breaking free from the solar year in how they synchronous their atomic clocks

12:27 pm

To leap or not to leap: Scientists are considering abandoning the solar year as their method for synchronizing their atomic clocks.

At issue is whether to abolish the ‘leap second’ — the extra second added every year or so to keep [Coordinated Universal Time] (UTC) in step with Earth’s slightly unpredictable orbit. UTC — the reference against which international time zones are set — is calculated by averaging signals from around 400 atomic clocks, with leap seconds added to stop UTC drifting away from solar time at a rate of about one minute every 90 years.

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Mars Express takes a close look at the Mars volcano Tharsis Tholus

12:20 pm

Mars Express takes a close look at one of Mars’ giant volcanoes, Tharsis Tholus.

At least two large sections have collapsed around its eastern and western flanks during its four-billion-year history and these catastrophes are now visible as scarps up to several kilometers high. The main feature of Tharsis Tholus is, however, the caldera in its center. It has an almost circular outline, about 32 x 34 km, and is ringed by faults that have allowed the caldera floor to subside by as much as 2.7 km.

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