Year: 2018

TESS releases its first batch of exoplanet candidates

9:59 am

The science team for the U.S.’s exoplanet space telescope TESS this week released its first batch of exoplanet candidates.

TESS scientists released the list so that other astronomers could make an initial determination as to whether these candidates are planets. There are 73 objects in this first batch, including some planets previously known from ground-based searches, says George Ricker, the mission’s principal investigator at the Massachusetts Institute of Technology in Cambridge. Perhaps 5 to 20% of the objects on the list will turn out to be false alarms, he says. Others, if confirmed, will join the ranks of newly discovered exoplanets.

Researchers expect TESS to find as many as 10,000 large planets. But its main goal is to discover and measure the masses of at least 50 small worlds no more than four times the size of Earth.

Meanwhile, Kepler has resumed operations despite being almost out of fuel. The science team there is attempting to squeeze every last ounce of data it can before the spacecraft’s fuel runs out.

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Russia begins construction of Angara launchpad at Vostochny

9:52 am

Russia has begun the construction of the first Angara launchpad at their new Vostochny spaceport.

According to earlier reports, the Angara launch pad is to be completed by December 31, 2022. Construction costs are estimated at nearly 39 billion rubles ($565 million).

Somehow it seems to me that this construction is too expensive and is taking too long. A launchpad is essentially a specialized building on the surface. I don’t see why it should be so difficult or expensive to do.

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China launches ocean survey satellite

9:42 am

Locations of two of China's launchsites

China today launched the third satellite in a constellation of ocean-observing satellites, using its Long March 2C rocket.

Though this is the same rocket that dropped its upper stage near a Chinese town in June, the launch came from the Taiyuan launch site, not the Xichang launchsite used in June, so it is unclear if the upper stages fell near populated areas. I would expect so, however, since Taiyuan is located in the middle of China even closer to populated areas than Xichang, as shown on the map to the right.

If the launch went north from Taiyuan, then those upper stages probably landed in Mongolia. I wonder if China has worked out an agreement with that country about dropping toxic first stages onto its territory.

Regardless, in the 2018 launch standings, China now leads the U.S. 24-22. The leaders in the race, with the leading U.S. companies broken out, are as follows:

24 China
15 SpaceX
8 Russia
6 ULA
5 Europe

As mentioned previously, with every launch for the rest of the year China will set a new annual record for itself.

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Update on the Parker Solar Probe

8:49 am

Link here. The press release notes that the spacecraft’s instruments are one by one being made operational without problem and that it has also successfully completed a second course adjustment.

The release also provided a link to a page which will shows the probe’s present location. This is useful, as it also shows the probe’s position in relation to the Sun, Venus, and the Earth.

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Curiosity to drill twice more on Vera Rubin Ridge

3:45 pm

Before they will resume the journey up Mount Sharp the Curiosity science team now plans two more drilling attempts on Vera Rubin Ridge.

The rover has never encountered a place with so much variation in color and texture, according to Ashwin Vasavada, Curiosity’s project scientist at NASA’s Jet Propulsion Laboratory in Pasadena, California. JPL leads the Mars Science Laboratory mission that Curiosity is a part of.

“The ridge isn’t this monolithic thing — it has two distinct sections, each of which has a variety of colors,” Vasavada said. “Some are visible to the eye and even more show up when we look in near-infrared, just beyond what our eyes can see. Some seem related to how hard the rocks are.”

Part of this drilling campaign will also include gaining a better understanding better their improvised drilling technique.

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More details about Chinese suborbital launch earlier this week

9:56 am

Link here. The article really only provides one new detail about the flight itself, that the rocket used solid rocket motors. This fact, plus the overall secrecy, suggest to me that the company, iSpace, is doing its work for the Chinese military.

The article at the link also provides a good overview of the entire Chinese “private” smallsat rocket industry.

China is still run from the top, so any “private” rocket company must have the approval and support of the government. What makes China different from Russia, also ruled from the top, is the Chinese government’s willingness to encourage competitive independent operations, something the Russians has not done. The result is that China’s rocket industry is not stagnating, but growing.

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“Unsteady hand” drilled hole in Soyuz

9:34 am

According to reports in Russia today, Roscosmos head Dmitri Rogozin suggested earlier this week that an “unsteady hand” had made several attempts to drill a hole in the Soyuz capsule.

“There is another version that we are not ruling out; that this was done deliberately in space,” Russian news agency RIA Novosti quoted Rogozin saying.

He indicated there were “several attempts to use a drill” by an “unsteady hand,” scraping the metal areas surrounding the hole, according to RIA Novosti. “We can cut short the idea that this was a technological mistake made by some specialist or other,” he added.

The vision that immediately came to my mind was that of a drunk technician, unhappy about pay, bad living conditions, and corruption, stumbling into the capsule, drilling the hole. Later, after he sobered up he realized the disaster he had created for himself and tried to fix it secretly.

Then again, it is dangerous to take seriously anything Dmitri Rogozin says. He could be trying to spin the situation to his advantage.

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September 4, 2018 Zimmerman/Batchelor podcast

9:59 pm

Embedded below the fold, in two parts. The first segment covers two subjects in depth: First, the airleak on the Soyuz capsule on ISS and the consequences for Russia, and second, the controversy over the decision by the filmmakers of the movie First Man to leave out the scene where the astronauts planted the American flag on the Moon. With the second topic I outline my present thoughts about this in detail, something I think my readers might find edifying.
» Read more

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University censors student handing out “Jesus loves you” valentines

9:29 pm

Fascist academia: Northeast Wisconsin Technical College has blocked a student from handing out “Jesus loves you” valentines, calling her actions “disruptive.”

A Wisconsin student sued her school on Tuesday after the administration labeled her a “disruptive student” for handing out Valentine’s Day cards reading “Jesus loves you.” Northeast Wisconsin Technical College (NWTC) student Polly Olsen sued her school for what she termed an “unconstitutional” Public Assembly Policy, according to a lawsuit obtained by Campus Reform. “Ms. Olsen was not selling the Valentines, soliciting donations, or asking the recipients for anything. Everyone was free to decline them.”

NWTC restricts what it deems as “disruptive” free expression and free speech, as protected by the First Amendment, to a tiny box on campus that makes up less than one percent of the campus. Olsen described the school’s “free speech zone” as “about the size of two buses next to each other,” highlighting the fact that no one “congregates there, they just walk through,” something she suggested prohibited her from having meaningful conversations with others.

The school’s restrictive speech policy appears blatantly unconstitutional. At the minimum it is oppressive and unreasonable, preventing individuals from exercising their first amendment rights. I hope she wins, costing the school both money and reputation. It is not a place I’d send my kids.

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New study: Forest cover has blossomed since 1980s

4:43 pm

The uncertainty of science: According to new research the world’s tree canopy has grown by almost a million square miles since 1982.

While the area of bare ground and short vegetation is diminishing, forest area is growing. As Ronald Bailey notes in Reason, “Forests in montane regions are expanding as climate warming enables trees to grow higher up on mountains.”

The greatest increase in tree canopy occurred in Europe, including European Russia, where it exploded by 35%. A close second was found in China, where tree canopy gained 34%. In the U.S., tree canopy increased by 15%.

This study confirms numerous other forest and agricultural research that has shown that increased carbon dioxide in the atmosphere encourages plant growth. Numerous other studies have also found that the Earth has been greening in the past century.

My review of the scientific literature on this subject also matches this finding, having found that if global warming is happening, research looking at what has actually happened generally show that increased CO2 and warming have tended to have beneficial effects, despite the endless doomsday predictions by global warming scientists of what might happen.

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