Category: Points of Information

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

It appears the Progress freighter has successfully docked with ISS.

8:59 am

It appears the Progress freighter has successfully docked with ISS.

The story is not entirely clear on whether this was a successful hard dock, or only a soft dock. However, I’ve done a search on the web and it sounds like the docking was good. This story says the astronauts on ISS will conducting leak tests (a normal procedure) and then begin unloading, which suggests that all is well.

A hard docking is confirmed.

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Congress is considering exempting itself and its staffers from Obamacare.

11:13 am

Now Congress has found out what’s in it: Lawmakers are considering exempting themselves and their staffers from Obamacare.

If they think the law is too onerous for themselves, then maybe they might finally realize that it is too onerous for everyone, and repeal the damn thing. Unfortunately, such common sense is not likely to appear in Washington.

Update: The story above suggested the exemption was being pushed by both parties. This apparently is not entirely true. There does appear to be some common sense in Washington, at least among some on the Republican side, as indicated by Republican statements from both the House and Senate. As noted by Speaker John Boehner’s office,
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A new report from Russia suggests that the undeployed antenna on the Progess freighter will interfere with ISS’s docking port and prevent a docking.

8:44 am

A new report from Russia suggests that the undeployed antenna on the Progess freighter will interfere with ISS’s docking port and prevent a docking.

It appears that the antenna would allow a soft docking but prevent the hard docking necessary to allow for the opening of the hatch. Something similar to this had happened on the Russian Mir station in the 1987. Two astronauts did a space walk to clear the hatch of a piece of debris. Now the Russians are suggesting again that if a hard dock becomes impossible a spacewalk be performed to get the antenna out of the way.

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America the fallen: Twenty-four signs that our once proud cities are turning into poverty-stricken hellholes.

10:18 pm

The day of reckoning looms: America the fallen: Twenty-four signs that our once proud cities are turning into poverty-stricken hellholes.

It is important to note that every single one of the cities cited in this article has been under Democratic Party rule for decades. While the decline is not entirely their fault, their tax-and-spend policies combined with a passion for heavy regulation certainly share much of the blame.

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An antenna used to orient a Progress freighter during docking, launched today to ISS, has failed to deploy.

11:14 am

An antenna used to orient a Progress freighter during docking, launched today to ISS, has failed to deploy.

Though astronauts can manually dock the spacecraft, they still need proper radar data to gauge its location, spin, orientation, speed, and distance. If the remaining four antennas cannot provide all this information, it will be very dangerous to try a docking.

A problem like this has not happened on a Progress freighter in literally decades. When I consider the spate of other recent failures experienced by the Russian space industry, I can’t help wondering whether they have developed an overall quality control problem.

Update: Russian mission control said today that even if they cannot solve the deployment failure and get the antenna working it will not prevent a docking with ISS on Friday.

I tend to believe them. With four other antennas plus additional radar equipment on ISS it does seems reasonable that there is sufficient redundancy to allow the docking to proceed. Also, considering the Russians past problems with collisions on Mir, I would expect them to be very careful about proceeding if they had any doubts.

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In a web interview today, Richard Branson said that the first supersonic powered flight of SpaceShipTwo is now set for this coming Monday.

2:49 pm

The competition heats up: In a web interview today, Richard Branson said that the first supersonic powered flight of SpaceShipTwo is now set for this coming Monday.

We’re hoping to break the sound barrier. That’s planned Monday. It will be a historic day. This is going to be Virgin Galactic’s year. We’ll break the sound barrier Monday and from there, we build up through the rest of the year, finally going into space near the end of the year. I’ll be on the first official flight, which we look to have in the first quarter of next year. We’re doing a number of test flights into space first.

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Three years of Solar Dynamics Observatory images of the Sun — in three minutes.

2:17 pm

Three years of Solar Dynamics Observatory images of the Sun — in three minutes.

I’ve posted the video below the fold. It’s quite cool.

Note that these images cover the period when the Sun was ramping up to what was hoped to be a strong solar maximum, when SDO was being designed and built. And though the Sun does appear to be active in these images, it is actually far less active than it has been for solar maximums going back at least a century.

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“This nation of sheep is indeed begetting a government of wolves, and as a result we are all witnessing the death of liberty.”

9:15 am

“This nation of sheep is indeed begetting a government of wolves, and as a result we are all witnessing the death of liberty.”

And then there’s this: “Why does evil make liberals stupid?” Key quote:

This piece in The Atlantic is a good exemplar of the mushy liberal commentary that has proliferated in recent days. Authored by one Megan Garber, it is titled: “The Boston Bombers Were Muslim: So?” Before taking a close look at Ms. Garber’s article, let’s advise The Atlantic not to put away that headline. It could come in handy so often. “The Cole Bombers Were Muslim: So?” “The Embassy Bombers Were Muslim: So?” “The First World Trade Center Bombers Were Muslim: So?” “The September 11 Bombers Were Muslim: So?” “The Madrid Bombers Were Muslim: So?” “The London Bombers Were Muslim: So?” “The Shoebomber Was Muslim: So?” The Underwear Bomber Was Muslim: So?” “The Fort Hood Shooter Was Muslim: So?” “The Beslan Child-Murderers Were Muslim: So?” “The Times Square Bomber Was Muslim: So?”

We could keep this up for a very long time, but let’s move on to Ms. Garber’s soulful meanderings.

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All systems are now go for the first launch of Antares at 5 pm (Eastern).

1:43 pm

All systems are now go for the first launch of Antares at 5 pm (Eastern).

We have liftoff. All is nominal. The first stage has shut down and separated after operating perfectly. The fairings protecting the dummy payload have separated perfectly, which for Orbital is a big deal, as they have had problems with fairing shrouds on previous launches with other rockets.

The second stage engine has ignited, as planned. All is nominal, as the launch director keeps saying.

The second stage engine has shut down, as planned. Antares is in orbit. After a 90 second pause the dummy payload has separated, as planned.

A perfect launch. The United States now has two companies capable of putting cargo and payloads into orbit at reasonable prices. The competition continues to heat up.

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An detailed analysis of the tumbling of the asteroid Apophis, detected by radar observations in January, suggests it will be easier to predict the asteroid’s orbit in the future.

10:15 am

The sky isn’t falling: A detailed analysis of the tumbling of the asteroid Apophis, detected by radar observations in January, suggests it will be easier to predict the asteroid’s orbit in the future.

The gentle but persistent nudging [of the Yarkovsky effect] arises when sunlight is absorbed by a rotating object and then reradiated as heat in some other direction. In particular, if Apophis were spinning retrograde (opposite the way Earth does), then over time its orbit would change in a way that increases the chance of impact in 2036. But now we can rest easy, because Apophis appears to be tumbling as it orbits the Sun. That’s the conclusion reached by a team of telescopic observers who monitored the asteroid’s light curve as it passed near Earth in January. Apophis is spinning around two axes at the same time, implying that any Sun-warmed surfaces are radiating heat in all directions, not just one in particular.

It is very difficult to measure the Yarkovsky effect, thus making it very difficult to precisely calculate the orbits of many near Earth asteroids. In the case of Apophis, however, it appears the astronomers have gotten a good handle on the problem.

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A Russian spacewalk on ISS today.

10:06 am

A Russian spacewalk on ISS today.

What is especially interesting about this spacewalk is its participants, Pavel Vinogradov and Roman Romanenko. Vinogradov at 59 years old is the oldest person to do a spacewalk. It is his seventh EVA. Roman Romanenko meanwhile is following in the footsteps of his father, Yuri Romanenko, who spent three months in space in the late 1970s on Salyut 6 followed by a ten month mission on Mir in 1987. As far as I can remember, this makes Romanenko the first second-generation astronaut in history.

Update: a reader has noted that Richard Garriott was the first second generation astronaut, beating Romanenko by one year. See the comments.

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Hubble has taken a spectacular close-up image of the Horsehead Nebula.

9:46 am

A horsehead of another color: Hubble has taken a spectacular close-up image of the Horsehead Nebula.

Also, if you want to find out exactly how powerful Hubble is in comparison with both ground-based and other space telescopes, check out the video provided by this press release for the new images by the Herschel Space Telescope of the Horsehead Nebula that were also released today. Herschel, which works in the far-infrared, produces good data and information that Hubble cannot, but its imagery cannot compare.

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Using Kepler astronomers have found a solar system with five terrestrial-type planets, with two in the habitable zone.

11:23 am

Eden? Using Kepler astronomers have found a solar system with five terrestrial-type planets, with two in the habitable zone.

Using observations gathered by NASA’s Kepler Mission, the team, led by William Borucki of the NASA Ames Research Center, found five planets orbiting a Sun-like star called Kepler-62. Four of these planets are so-called super-Earths, larger than our own planet, but smaller than even the smallest ice giant planet in our Solar System. These new super-Earths have radii of 1.3, 1.4, 1.6, and 1.9 times that of Earth. In addition, one of the five was a roughly Mars-sized planet, half the size of Earth. …

The two super-Earths with radii of 1.4 and 1.6 Earth radii orbit their star at distances where they receive about 41% and 120%, respectively, of the warmth from their star that the Earth receives from the Sun. The planets are thus in the star’s habitable zone; they have the right temperatures to maintain liquid water on their surfaces and are theoretically hospitable to life.

Theoretical modeling of the super-Earth planets, Kepler-62e and Kepler-62f, suggests that both could be solid, either rocky–or rocky with frozen water.

This is big news. Additional info can be found here and here.

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