Category: Points of Information

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

Interstellar object resembles asteroid

6:43 pm

Astronomers who have been observing the interstellar object that zipped past the Sun last month have concluded that it mostly resembles asteroids seen in our own solar system.

From its changing brightness, the team inferred that U1 is highly elongated with rough dimensions 30m x 30m x 180m. About twice the height of the Statue of Liberty, the 6:1 aspect ratio of U1 is “similar to the proportions of a fire extinguisher — although U1 is not as red as that,” says David Jewitt (UCLA), the first author of the study.

“With such an elongated shape, U1 probably needs a little cohesive strength to hold it together. But that’s not really unusual,” remarked study coauthor Jayadev Rajagopal (National Optical Astronomy Observatory). Commenting on its size, rotation, and color, Rajagopal mused that, “the most remarkable thing about U1 is that, except for its shape, how familiar and physically unremarkable it is.”

I wonder if they are still tracking it.

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India and China to reduce launch costs

9:31 am

Capitalism in space: In response to the announcement by Chinese officials that they aim to reduce their launch costs in order to attract more commercial business, Indian officials announced that they plan to do the same in order to compete.

Interestingly, the reduced price that China revealed, $5,000 per kilogram, remains about twice that of SpaceX’s estimate per kilogram price for a launch using a reused first stage.

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NASA completes first high altitude supersonic test of Mars 2020 rover parachute

9:26 am

NASA successfully completed its first high altitude supersonic test of the parachute that the Mars 2020 rover will use as part of its landing operation.

The rocket carried the payload as high as about 32 miles (51 kilometers). Forty-two seconds later, at an altitude of 26 miles (42 kilometers) and a velocity of 1.8 times the speed of sound, the test conditions were met and the Mars parachute successfully deployed. Thirty-five minutes after launch, ASPIRE splashed down in the Atlantic Ocean about 34 miles (54 kilometers) southeast of Wallops Island. “Everything went according to plan or better than planned,” said Clark. “We not only proved that we could get our payload to the correct altitude and velocity conditions to best mimic a parachute deployment in the Martian atmosphere, but as an added bonus, we got to see our parachute in action as well.”

The parachute tested during this first flight was almost an exact copy of the parachute used to land NASA’s Mars Science Laboratory successfully on the Red Planet in 2012. Future tests will evaluate the performance of a strengthened parachute that could also be used in future Mars missions. The Mars 2020 team will use data from these tests to finalize the design for its mission.

There is a nice video of this test flight at the link.

At first glance one wonders why they need to do these tests, since the parachute system is going to be almost identical to the one used by Curiosity in 2012, and that worked perfectly. However, they really aren’t testing the parachute but the system to fly and test future parachutes at the high altitudes that mimic Martian conditions. With this test technology working and available, it will make it possible to test all kinds of parachute designs for use on Mars, even Rogollo hang-glider chutes.

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Astronomers find habitable Earth-mass planet 11 light years away

9:15 am

Worlds without end: Astronomers have found an Earth-mass planet 11 light years away, orbiting a quiet red dwarf star in the habitable zone.

Unlike Proxima Centauri, which periodically has large flares which make its Earth-sized planet less hospitable to life, this red dwarf, Ross 128, is more stable.

Many red dwarf stars, including Proxima Centauri, are subject to flares that occasionally bathe their orbiting planets in deadly ultraviolet and X-ray radiation. However, it seems that Ross 128 is a much quieter star, and so its planets may be the closest known comfortable abode for possible life.

Although it is currently 11 light-years from Earth, Ross 128 is moving towards us and is expected to become our nearest stellar neighbour in just 79 000 years — a blink of the eye in cosmic terms. Ross 128 b will by then take the crown from Proxima b and become the closest exoplanet to Earth!

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China successfully launches two satellites

8:43 am

China’s Long March 4C rocket successfully placed two satellites in orbit today, a weather satellite and a commercial data relay satellite.

This was China’s 11th launch in 2017, well below the 20 they achieved in 2016, the drop caused by two launch failures earlier this year that resulted in an almost four month pause in launches.

At present the race for the most launches in 2017 stands as follows:

17 Russia
16 SpaceX
11 China
10 Arianespace (Europe)
7 ULA
5 Japan
4 India
3 Orbital ATK

Overall, the United States leads with 26 launches, its most since 2000.

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Zwicky Transient Facility sees first light

10:54 am

Astronomers announced today that the Zwicky Transient Facility at the Palomar Observatory in California has seen first light, and will begin full operations in 2018.

When fully operational in 2018, the ZTF will scan almost the entire northern sky every night. Based at the Palomar Observatory in southern California and operated by Caltech, the ZTF’s goal is to use these nightly images to identify “transient” objects that vary between observations — identifying events ranging from supernovae millions of light years away to near-Earth asteroids.
an image of stars and the night sky

In 2016, the UW Department of Astronomy formally joined the ZTF team and will help develop new methods to identify the most “interesting” of the millions of changes in the sky — including new objects — that the ZTF will detect each night and alert scientists. That way, these high-priority transient objects can be followed up in detail by larger telescopes, including the UW’s share of the Apache Point Observatory 3.5-meter telescope.

By producing new high resolution images of the entire northern sky every night, this telescope instrument is going to discover gobs of new transients, from supernovae to binaries to novae to things we haven’t even seen before.

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Japan to make second launch attempt of world’s smallest orbital rocket

9:44 am

JAXA, Japan’s space agency, has announced that it will make a second launch attempt in December of what would be the world’s smallest orbital rocket.

The rocket, measuring 10 meters long and 50 cm in diameter, will carry a “micro-mini” satellite weighing about 3 kg developed by the University of Tokyo to collect imagery of the Earth’s surface.

The launch scheduled for Dec. 25 will feature the fifth rocket in the SS-520 series. The Japan Aerospace Exploration Agency (JAXA) is hoping small rockets made with commercially available components at low cost will help fuel the growing global demand for micro-mini satellites. JAXA used components found in home electronics and smartphones for the rocket, which is about the size of a utility pole.

The previous launch failed when vibrations during liftoff caused a short-circuit that cut off communications, forcing them to terminate the flight.

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Billionaire Yuri Milner considering funding mission to Enceladus

9:21 pm

Capitalism in space: Billionaire Yuri Milner, who already funds several astronomy projects aimed at interstellar travel, is now considering funding a planetary probe to the Saturn moon Enceladus.

At the moment all he is doing is holding workshops with scientists and engineers to see if such a mission can be done for an amount he can afford. Considering that Elon Musk’s first concept to send a private probe to Mars, before SpaceX existed, was stopped because of high launch costs, thus becoming the inspiration for SpaceX itself in order to lower those costs, Milner’s private effort might actually be affordable now.

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Sacrificing Scientific Skepticism

10:59 am

Phil Berardelli, who periodically comments here and who is a veteran science journalist who worked for the journal Science for a number of years, has written a very cogent four part essay on the subject of climate change for the think tank Capital Research Center.

Berardelli very carefully outlines the uncertainties that dominate our knowledge of the Earth’s climate, while explaining clearly why consensus is never what good science relies upon. As he notes,

Science is not primarily about proof; science is about disproof. Nothing in science, absolutely nothing, should ever be taken at face value. This view isn’t new; it’s age old.

Read it all, especially if you are one of the people who reads my writing and questions my skepticism about much of what I see in the climate field, especially coming from NASA and NOAA. Berardelli illustrates how doubt and skepticism are the hallmarks of science, and should always be honored, not denigrated with slurs like “denier.”

Full disclosure: Phil Berardelli was also my editor when I did a weekly column for UPI called Space Watch for six months in 2005.

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Next Dragon launch for NASA may fly using reused first stage

9:19 am

Capitalism in space: NASA revealed today that it is close to approving the use of a Falcon 9 reused first stage for the next Dragon cargo mission to ISS.

During a press conference at NASA’s Wallops Flight Facility here Nov. 10 about the launch of a Cygnus cargo mission to the ISS, a NASA manager said the agency would likely approve the use of a reused booster on that mission, designated SpX-13, assuming it clears an upcoming review. “We’re in the final stages of doing all those assessments,” Dan Hartman, ISS deputy program manager, said. SpaceX first requested to use a previously-flown booster for a cargo mission about a year ago. “On the NASA side, we’ve had a lot of major reviews.”

He said SpaceX itself had one more readiness review for the booster they’re planning to refly before deciding if they can use it for the SpX-13 mission, scheduled for launch Dec. 4. “If that comes back positive,” he said, “I’d say the chances are that we’ll be flying a reuse on SpX-13.”

It appears that about a year from now the use of reused boosters will have become completely normalized, with no one thinking anything unusual about their use. This, after almost a half century of old-school engineers and managers repeatedly saying such a thing made no sense and was impossible in terms of engineering and economics.

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Dream Chaser test vehicle flies again!

9:12 am

Capitalism in space: Sierra Nevada’s Dream Chaser test vehicle today completed its second glide test, the first since 2013, successfully gliding to a perfect landing after being dropped from a helicopter at an altitude of 10,000 feet.

Unlike the 2013 glide test, the landing gear worked perfectly. With two such tests under their belt, the company I think has demonstrated that the spacecraft will be able to execute a landing. Next comes the building and test flight of the actual spacecraft.

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Saudi Arabia has launched a military strike against Yemen

3:28 pm

Saudi Arabia has launched a military strike against Yemen’s defense ministry.

It wasn’t immediately clear if the attacks were air or missile strikes, but they came following reports that Iran had manufactured the ballistic missile fired by Yemen’s Shiite rebels toward the Saudi capital a week ago.

Remnants of the missile bore “Iranian markings,” the top US Air Force official in the Mideast said Friday, backing the kingdom’s earlier allegations.

This isn’t that much of a surprise, considering the recent purge in Saudi Arabia as well as the recent reports of both Saudi Arabia and Kuwait warning their citizens to leave Lebanon. The military strike today in Yemen appears to therefore merely be a precursor of a more significant escalation.

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A storm on Jupiter

10:09 am

A storm of Jupiter

Cool image time! The image above, reduced in resolution to post here, was taken during Juno’s ninth close fly-by of Jupiter in late October, and shows one particular storm swirl in the gas giant’s southern hemisphere.

The Juno team today highlighted an image taken during this fly-by of Jupiter’s entire southern hemisphere, but I find this close-up more interesting. Be sure to check out the full resolution version. It appears to me that the white swirls have risen up above the gold and blue regions, casting shadows down upon them.

Unfortunately, I cannot tell you the scale of this storm, as the release does not give any details, including where in the full hemisphere image it is located. I suspect, however, that it is large enough to likely cover the Earth.

Both the full hemisphere image and the image above were processed by citizen scientists Gerald Eichstädt and Seán Doran.

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Physicists shrink their next big accelerator

9:52 am

Because of high costs and a refocus in research goals, physicists have reduced the size of their proposed next big particle accelerator, which they hope will be built in Japan.

On 7 November, the International Committee for Future Accelerators (ICFA), which oversees work on the ILC, endorsed halving the machine’s planned energy from 500 to 250 gigaelectronvolts (GeV), and shortening its proposed 33.5-kilometre-long tunnel by as much as 13 kilometres. The scaled-down version would have to forego some of its planned research such as studies of the ‘top’ flavour of quark, which is produced only at higher energies.

Instead, the collider would focus on studying the particle that endows all others with mass — the Higgs boson, which was detected in 2012 by the Large Hadron Collider (LHC) at CERN, Europe’s particle-physics lab near Geneva, Switzerland.

Part of the reason for these changes is that the Large Hadron Collider has not discovered any new particles, other than the Higgs Boson. The cost to discover any remaining theorized particles was judged as simply too high. Better to focus on studying the Higgs Boson itself.

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United Arab Emirates signs space agreement with Germany

9:43 am

The new colonial movement: The United Arab Emirates (UAE) has signed a memorandum of understanding with the German Aerospace Center.

The press release doesn’t say much, other than the agreement will facilitate the exchange of information. Since the UAE can contribute little here but money, and none appears to be offered, I am curious as to exactly what is involved. It could be that Germany is looking at this as a form of inexpensive foreign aid, providing help to the UAE’s nascent space effort in order to establish good will and good relations.

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Update on the development of Blue Origin’s orbital rocket New Glenn

9:36 am

Link here. The article provides a lot of interesting details about Blue Origin’s plans and status, including this tidbit about the New Glenn assembly facility, now expected to be finished by February 2018 at the latest:

The facility will largely be used to build the second and third stages for New Glenn, with Blue Origin actually planning to construct very few first stage boosters.

With each first stage booster planned to be reused up to 100 times, the factory will mainly concentrate on – and for large periods of time is only planned to – produce 2nd and 3rd stages. Mr. Henderson noted that once the first stage boosters are retrieved after flight, their storage will be managed across the refurbishment facility at LC-36 (capable of holding three or four boosters), the integration facility at LC-36 (also capable of holding “at least” three or four boosters), and the Merritt Island production facility (which can hold four boosters).

This would seemingly reveal that Blue Origin plans to rely on roughly only 12 first stage boosters at a time (once New Glenn is fully operational and recovery is “routine”), relying almost exclusively on booster recovery and refurbishment to maintain its first stage boosters manifest.

The article also notes the Blue Origin intends to always land its stages on a barge, and is about to finalize the purchase of that barge.

What I am puzzled about is the almost complete disappearance from the news of the company’s suborbital project, New Shepard. The last news story I’ve seen, from mid-September, said they hoped to resume test flights before the end of the year, with manned flights in 2018. Since then, however, there has been no updates, which makes me wonder if Blue Origin has decided to put that suborbital tourism project aside.

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Crowdfunding campaign to honor only cat to fly in space

9:27 am

A crowdfunding campaign has been started to build a 5-foot-tall bronze statue in honor of Félicette, the only cat to fly in space.

While the first dog in space, Laika, has a statue, and the first chimp, Ham, has a memorial, Félicette has close to nothing. There are some commemorative stamps honoring a mythical space cat “Felix.” But Felix’s portrait doesn’t look like Félicette and it has a male name, so this is not enough for Guy. If anything, he says, the stamps simply help erase the existence of female astronauts.

The French space program gathered 14 cats, implanted electrodes into their brains, and put them through training similar to the way that they train human astronauts. They ultimately chose Félicette to make the trip, either because of her docile personality, or because she had not put on too much weight, according to differing accounts.

She was launched into space from Algeria [in 1963], and made it nearly 100 miles above Earth. For five minutes, she was weightless. Félicette came back to Earth unharmed, parachuting down and being retrieved only 13 minutes after having left her home planet. She stayed at the program’s lab for two to three months, according to Guy, but scientists later killed her to study the effects of space travel on her body.

Seems to me to be the right thing to do.

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Washington swamp creature hints that SLS could be in trouble

5:04 pm

Congressman Lamar Smith (R-Texas) today expressed strong disappointment with the repeated delays in the the launch of SLS and Orion, noting that the problems could lead to Congress considering “other options.”

“After all these years, after billions of dollars spent, we are facing more delays and cost overruns,” Smith said. While he noted that some delays were caused by factors out of NASA’s control, like a tornado that damaged the Michoud Assembly Facility in New Orleans in February, “many of the problems are self-inflicted.”

“It is very disappointing to hear about delays caused by poor execution, when the U.S. taxpayer has invested so much in these programs,” he added.

Smith, who announced Nov. 2 he would not run for reelection next year after more than three decades in the House, including serving as chairman of the science committee since 2013, warned about eroding support for the programs should there be additional delays. “NASA and the contractors should not assume future delays and cost overruns will have no consequences,” he said. “If delays continue, if costs rise, and if foreseeable technical challenges arise, no one should assume the U.S. taxpayers or their representatives will tolerate this forever.”

“The more setbacks SLS and Orion face, the more support builds for other options,” he said, not elaborating on what those options would be.

Smith is part of the establishment in Congress that has been supporting SLS and Orion blindly for years. Unfortunately, he is retiring this year, and the other members of his committee did not seem as bothered by SLS’s endless delays.

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This week in fascist academia

3:24 pm

This week’s collection of stories illustrating the fascist culture that permeates today’s academic community actually includes some good news. (My last fascist academia post can be seen here.)

First the bad:

The first story illustrates that this intolerance is not limited to the left. In this case a conservative university kicked out a speaker with more moderate views.

Nonetheless, the majority of these attacks on freedom of speech continue to come from the left or from left-leaning organizations. The last story indicates the trends, which include a significant shift towards violence and a disrespect for property rights.

Now for the good news.

In the first story we see a rare example of someone experiencing bad consequences for their bad fascist behavior. If only this would happen more often. In the second story the theatrical community, including the normally very leftwing partisan Dramatists Guild of America (!), has actually come out against censorship, even if that censorship involves opinions that attack modern liberal sacred cows, such as the racist Black Lives Matter movement. This action is so out of the norm that I am somewhat speechless.

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Tuesday’s election results

10:47 am

The election results from Tuesday, where Democrats won most of the significant races, has produced a lot of commentary, from both conservatives and liberals, about its significance.

To me, however, these results merely confirmed the increasingly regional nature of today’s partisan politics. This story, about a victory by a Democrat state senator candidate that puts the Democrats in complete control of Washington’s legislature, illustrates this best.

Dhingra’s victory in Washington state over Republican Jinyoung Englund means the West Coast is now the solid center of the resistance, with Democrats controlling legislatures and governorships from Seattle down to San Diego.

The Democratic victories on Tuesday all took place in areas where they strongly dominate (the coasts and urban centers), thus merely solidifying their control over those localized regions. I expect that future elections will show Republicans solidifying their control over their own regions (which is the rest of the country). In other words, people are beginning to choose sides, and we are heading to a regional and political divide that can only be solved in one of two ways: The U.S. splits, or a civil war (in the literal sense) breaks out.

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A simple and inexpensive skin cancer detector wins award

10:10 am

A simple and inexpensive skin cancer detector has won the $40,000 2017 James Dyson award.

Designed by a team from McMaster University in Canada, the sKan can make more accurate diagnoses quickly and reasonably cheaply. It’s based around the fact that cancer cells have a faster metabolic rate than healthy cells, meaning they release more heat. To check if a patch of skin has the beginnings of a melanoma, the suspected area is first cooled with an ice pack before the sKan device is placed against the skin.

Using an array of temperature sensors called thermistors, the sKan will then monitor the area as the skin warms back up. If there’s a melanoma present, it will warm up faster than the surrounding skin, revealing itself on a heat map and temperature difference time plot created through a connected computer program.

Once this device is in the hands of dermatologists, they will be able to very quickly diagnose whether a skin mole or freckle is dangerous or not.

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India’s space agency ISRO hopes to double launch rate

10:02 am

Capitalism in space: ISRO officials said yesterday that the agency plans to double its launch rate next year, while also shifting as much of its space manufacturing effort to the private sector.

Currently, the space agency launches 9 to 10 spacecraft built by it every year. Dr K Sivan, director of Thiruvananthapuram-based Vikram Sarabhai Space Centre, said, “Isro is targeting to double the number of launches from 9-10 to 18-19 launches per year.”

On outsourcing of jobs to the private industry, Isro chairman A S Kiran Kumar said the space agency does as much activity as possible with the industry. “Wherever it’s possible to get things done through the industry, we are doing and it will only increase in the coming days because we need to do more frequent activities,” he told a news agency. [emphasis mine]

The highlighted language is patently false. India has never launched 9 spacecraft in a year. Last year it set a record with 7 launches. This false overstatement casts some doubt to me of the sincerity of the second claim, that the agency wishes to shift as much responsibility to the private sector as possible. Government agencies rarely give up power. In the U.S. the decision by NASA to shift from NASA-built rockets to commercially-built rockets took decades (occurring reluctantly in 2008 after years of lobbying), and even a decade after that decision the transition is hardly guaranteed.

Nonetheless, that ISRO officials are setting a goal of 18-19 launches a year indicates that they truly do want to compete with the big launch players.

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