Category: Points of Information

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

Texas and Alabama fight over space pork

10:20 am

Turf war: Several powerful Texas lawmakers announced yesterday their opposition to NASA’s decision to give the lead management for the next lunar lander to the Marshall Space Flight Center in Alabama.

The question is which Center will manage development of the landers, a plum assignment. NASA plans to procure them through public-private partnerships rather than traditional contracts. The actual design will be determined by whatever companies win the contracts, but NASA’s concept is for a trilogy of vehicles: a transfer vehicle to take the crew from the Gateway to a lower lunar orbit, then a descent vehicle to take them to the surface and an ascent vehicle to return them to Gateway.

…According to Ars Technica, … NASA is assigning overall responsibility for the lunar lander program to Marshall, which will also oversee acquisition of the transfer and descent vehicles. JSC will oversee the ascent vehicle.

In a letter to Bridenstine today, Senators Ted Cruz and John Cornyn and Rep. Brian Babin, all Republicans, expressed surprise and asked Bridenstine to reconsider. They argue that JSC should be in charge of the entire program, not just one of the three vehicles. Marshall’s expertise is in rocketry while JSC is “ground zero for human space exploration.”

They also disagree with splitting the work between two Centers, “an unnecessary and counterproductive departure from the unquestionable success” of the lander for the Apollo program.

This fight is not over who will actually build anything, but how to distribute the pork. In truth, the NASA agency that does this “management” does almost nothing. It is the contractor that builds the spacecraft. You could condense the management into a team of less two dozen (and that’s probably high). Instead, NASA and these politicians use the contractors to justify the existence of whole departments and hundreds of employees and large facilities, all of which are mostly irrelevant, especially if the Trump administration is serious about letting private industry do the job.

Worse, this fight — and NASA’s need to make these politicians happy — is forcing the agency to turn the work once again into a Frankenstein monster, distributing responsibility in absurd ways. I guarantee that in the end the management will not all go to Texas, meaning that the management of the different contractors will be split to different agencies, making for a very inefficient and badly managed program.

The result is going to be, as always, delays, cost overruns, bad designs, a lot of wasted money, and little accomplished.

I want to make special note of Senator Ted Cruz (R-Texas) in this affair. He ran for president as a new conservative, out to drain the swamp of Washington. Now, as senator, he is increasingly becoming captured by that swamp, participating in all the same corruption he railed against during his presidential run.

If he was really serious about draining the swamp, he would be pushing to trim NASA’s management, both in Alabama and in Texas. Instead he is fighting to build it up.

6 comments

Israel to block entry to Muslim anti-Israeli Congresswomen

9:17 am

The Netanyahu Israeli government today announced that it will not allow Muslim congresswomen Ilhan Omar (D-Minnesota) and Rashida Tlaib (D-Michigan) to enter their country because of their anti-Israeli boycott stances.

“As a vibrant and free democracy, Israel is open to any critic and criticism, with one exception,” Netanyahu said. “Israel’s law prohibits the entry of people who call and operate to boycott Israel, as is the case with other democracies that prevent the entry of people whose perception harms the country. “The same is true of the US towards an Israeli Knesset and other public figures in the world.”Congressmen Talib and Omar are leading activists in promoting boycott legislation against Israel in the US Congress. Only a few days ago, we received their visitation plan, and it became clear that they were planning a campaign whose sole purpose was to strengthen the boycott and negate Israel’s legitimacy.”

That both congresswomen are anti-Semites might also have been a factor in this decision.

Recognize this: Democrat politicians can spout ugly lies as much as they want (“All Trump voters are white supremacists!”), they can act to silence all opposition, they can even threaten the lives of anyone who disagrees with them, but should even one conservative dare, dare, to fight back it is considered behavior worse than Hitler.

Bah. I say good for Netanyahu and the Israelis. Tell these bigots to go jump in a lake. Let them scream and yell and throw tantrums. It will only better reveal how hateful these congresswomen really are.

10 comments

French solar road a total failure

3:34 pm

The first French attempt to build a road that had solar panels embedded in it to produce power has turned out to be a total failure, after only two years.

Despite the hype surrounding solar roads, two years after this one was introduced as a trial, the project has turned out to be a colossal failure — it’s neither efficient nor profitable, according to a report by Le Monde.

The unfortunate truth is that this road is in such a poor state, it isn’t even worth repairing. Last May, a 100-meter stretch had deteriorated to such a state that it had to be demolished. According to Le Monde’s report, various components of the road don’t fit properly — panels have come loose and some of the solar panels have broken into fragments.

On top of the damage and poor wear of the road, the Normandy solar track also failed to fulfill its energy-production goals. The original aim was to produce 790 kWh each day, a quantity that could illuminate a population of between 3,000 and 5,000 inhabitants. But the rate produced stands at only about 50% of the original predicted estimates.

The article notes that a 230-foot-long Dutch solar bicycle path has been more successful, meeting its energy goals. It also has not deteriorated. I suspect that both results are because it is being used by bicycles and pedestrians, not cars.

What always bothers me about these projects is not their sincere good intentions, but the unwillingness of their promoters to honestly assess the final results, good or bad. They laud the project’s good intentions as if that is all that matters, and rip into anyone who questions the practicality of the project. When the project fails these same promoters, usually politicians, disappear into the darkness, ignoring the bad result as they promote some new pie-in-the-sky proposal.

In this context I am especially reminded of Democratic politicians who loved Venezuela’s socialist experiment, until it went bankrupt as every socialist experiment always does.

2 comments

Juno finds Jupiter’s core more extended and less dense than predicted

11:58 am

My headline above focuses on the real story here, that Juno has found that Jupiter’s solid core is more fuzzy and extended.

Unfortunately, the press release instead focuses on one theory, based on computer models, that might explain this discovery.

The research team ran thousands of computer simulations and found that a fast-growing Jupiter can have perturbed the orbits of nearby “planetary embryos,” protoplanets that were in the early stages of planet formation.

Liu said the calculations included estimates of the probability of collisions under different scenarios and distribution of impact angles. In all cases, Liu and colleagues found there was at least a 40% chance that Jupiter would swallow a planetary embryo within its first few million years. In addition, Jupiter mass-produced “strong gravitational focusing” that made head-on collisions more common than grazing ones.

Isella said the collision scenario became even more compelling after Liu ran 3D computer models that showed how a collision would affect Jupiter’s core. “Because it’s dense, and it comes in with a lot of energy, the impactor would be like a bullet that goes through the atmosphere and hits the core head-on,” Isella said. “Before impact, you have a very dense core, surrounded by atmosphere. The head-on impact spreads things out, diluting the core.”

This theory is all well and good, but we mustn’t take it too seriously. It relies entirely on computer models, and carries with it enormous assumptions about the early solar system that are as yet unproven.

That Jupiter’s core however is fuzzy and extended however is quite fascinating, highlighting once again how little we know about the universe.

0 comments

Hong Kong airport reopens as protesters retreat

10:18 am

It appears the actions by Chinese riot police yesterday has caused the airport protesters in Hong Kong to back off and allow the airport to reopen.

Most of the protesters left the airport Tuesday after riot police tried to enter the terminal, fighting with demonstrators who barricaded entrances with luggage carts. The brief clash led to several injuries.

The violence included protesters beating up at least two men they suspected of being undercover Chinese agents. Airport security appeared unable to control the crowd, and paramedics later took both men away. Police have acknowledged using “decoy” officers, and some protesters over the weekend were seen being arrested by men dressed like demonstrators — in black and wearing face masks.

Hu Xijin, editor-in-chief of the Global Times, identified one of the men as a journalist at the nationalistic Chinese tabloid. “Fu Guohao, reporter of GT website is being seized by demonstrators at HK airport,” Hu wrote on his Twitter account. “I affirm this man being tied in this video is the reporter himself. He has no other task except for reporting.”

The protesters apologized that some of them had become “easily agitated and overreacted.” On posters, the demonstrators said they have been “riddled with paranoia and rage” after discovering undercover police officers in their ranks.

Meanwhile the article describes other clashes elsewhere in Hong Kong. The conflict in Hong Kong does not appear to be over, by any means.

3 comments

Whistleblower of Google anti-right bias goes public after being threatened by Google

10:06 am

Reason #3,427,934 for not using Google: The whistleblower who has given more than 900 Google documents to both Project Veritas and the Justice Department demonstrating the tech giant’s anti-right bias and its attempt to influence future elections has gone public after being threatened by Google.

Project Veritas has released hundreds of internal Google documents leaked by Vorhies. Among those documents is a file called “news black list site for google now.” The document, according to Vorhies, is a “black list,” which restricts certain websites from appearing on news feeds for an Android Google product. The list includes conservative and progressive websites, such as newsbusters.org and mediamatters.org. The document says that some sites are listed with or because of a “high user block rate.”

One document shows how Google is ranking various established news sites, routinely favoring left-leaning news sites — including the Russian government’s RT news site — over more conservative media.

Meanwhile, once Google found out what the whistleblower was doing it called the police on him, claiming he was “unwell.”

After having been identified by an anonymous account (which Vorhies believes belongs to a Google employee,) on social media as a “leaker,” Vorhies was approached by law enforcement at his residence in California. According to Vorhies, San Francisco police received a call from Google which prompted a “wellness check.”

Vorhies described the incident to Project Veritas: “They got inside the gate, the police, and they started banging on my door… And so the police decided that they were going to call in additional forces. They called in the FBI, they called in the SWAT team. And they called in a bomb squad. … T]his is a large way in which [Google tries to] intimidate their employees that go rogue on the company…”

There are other search engines, such as DuckDuckGo and Yippy. Use them. There are other email services. Get off of gmail. The more the market supports Google competitors the more likely the company will reform its ways. At a minimum its power will be reduced.

6 comments

Goddard engineers complete third robotic refueling test on ISS

9:40 am

Goddard engineers have successfully completed their third robotic refueling test on ISS, using the Canadian dual robot arm Dextre.

The operation were controlled from Goddard, using a variety of robots to view, inspect, and complete the operations remotely. The goal is to demonstrate robotic engineering that can later be used to repair and service a variety of already orbiting satellites.

One detailed mentioned at the very end of the article I thought very significant and did not involve robotic refueling: It appears this project also

…successfully stored liquid methane for four months with zero boil off, demonstrating a system which will dramatically lower fluid loss and eliminate the need for oversized tanks and extra propellant.

0 comments

Jupiter’s changing Great Red Spot, as seen by Juno

9:28 am

Montage of Jupiter's Great Red Spot since 2017
Click for full image.

Citizen scientist Björn Jónsson has compiled the montage to the right, reduced to post here, of the five times Jupiter’s Great Red Spot (GRS) was imaged by Juno during its repeated orbital fly-bys.

The mosaics show how the GRS and nearby areas have changed over the course of the Juno mission. The mosaics cover planetographic latitudes 4.7 to 38 degrees south.

The resolution of the source data is highly variable and this can be seen in some of the mosaics. The viewing geometry also varies a lot. Some of the images were obtained almost directly above the GRS (in particular some of the perijove 7 images) whereas other images were obtained at an oblique viewing angle (in particular the perijove 17 images).

These are approximately true color/contrast mosaics but there may be some inaccuracies in areas where the original images were obtained at a highly oblique angle. The contrast is also lower in these areas.

Some of the changes are remarkable, considering the short time involved. For example, note the appearance of the large white storm below the Spot in the third image, taken in December 2018. It wasn’t there in April 2018, and was gone by Feburary 2019. This doesn’t mean it had dissipated. Instead, the storm is in a different band which moves at a different speed than the band that the Spot is in. It has thus simply moved away.

This movement is even more remarkable when we remember that the Great Red Spot is about the width of the Earth.

0 comments

SpaceX gets 2nd boat to catch rocket fairings

9:12 am

Capitalism in space: It appears, from a Elon Musk tweet, that SpaceX has obtained a second boat to catch its rocket fairings for reuse.

Based on previous comments by Musk, the company is now on the verge of recovering and reusing about 70% of its Falcon 9 rockets during each launch. I’d say that’s pretty good, especially considering industry rocket experts have been saying for half a century that none of this was even possible or practical.

1 comment

Chandrayaan-2 successfully puts itself in route to the Moon

8:46 am

Chandrayaan-2 today successfully completed its last Earth perigee burn, raising its orbital apogee so that it will enter the Moon’s gravitational sphere of influence on August 20th.

Chandrayaan-2 will approach Moon on August 20, 2019 and the spacecraft’s liquid engine will be fired again to insert the spacecraft into a lunar orbit. Following this, there will be further four orbit maneuvers to make the spacecraft enter into its final orbit passing over the lunar poles at a distance of about 100 km from the Moon’s surface.

…Subsequently, Vikram lander will separate from the orbiter on September 02, 2019. Two orbit maneuvers will be performed on the lander before the initiation of powered descent to make a soft landing on the lunar surface on September 07, 2019.

Vikram will be doing the hardest part, the landing.

0 comments
1 … 1,000 1,001 1,002 1,003 1,004 … 2,414