Category: Behind The Black

A thick and syrupy flow on Mars

1:06 pm

A thick and syrupy flow on Mars
Click for full image.

Overview map

Cool image time! The photo above, rotated, cropped, and reduced to post here, was taken on March 5, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows what the scientists label as a “viscous flow feature,” which is another way of saying the flow was thick and syrupy.

Nor is such a flow unusual in this area of Mars. It is located in a region of chaos terrain dubbed Protonilus Mensae, which is also the central mensae region in the 2,000-mile-long strip in the northern mid-latitudes of Mars I label glacier country. The overview map above of Protonilus Mensae — covering about 500 miles in width — shows how common such flows are in this place. The black rectangles mark the locations of other cool images I have featured, as follows:

The red rectangle indicates the location of today’s cool image.

The glacial aspect of everything in this region is even more emphasized by the wider view provided by MRO’s context camera below.
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Pushback: Supreme Court rules in favor of HS football coach fired for praying

11:27 am

Joe Kennedy: An American once again free to pray
Joe Kennedy: An American once again free to pray,
when and where he wishes.

Bring a gun to a knife fight: In a 6-3 decision, the Supreme Court today ruled in favor of high school coach Joe Kennedy, who was fired by the Bremerton School District in Washington because he choose to kneel and pray quietly on the football field at the end of each game.

Joe Kennedy was a junior varsity head coach and varsity assistant coach with the Bremerton School District in Washington from 2008 to 2015. He began the practice of reciting a post-game prayer by himself, but eventually students started joining him. According to court documents, this evolved into motivational speeches that included religious themes. After an opposing coach brought it to the principal’s attention, the school district told Kennedy to stop. He did, temporarily, then notified the school that he would resume the practice.

The situation garnered media attention, and when Kennedy announced that he would go back to praying on the field, it raised security concerns. When he did pray after the game, a number of people stormed the field in support.

The school district then offered to let Kennedy pray in other locations before and after games, or for him to pray on the 50-yard line after everyone else had left the premises, but he refused, insisting that he would continue his regular practice. After continuing the prayers at two more games, the school district placed Kennedy on leave.

He eventually lost the job when the school district refused to renew his contract.

You can read the Supreme Court’s ruling here [pdf].

Initially Kennedy was holding locker room prayer sessions and postgame religious talks, actions by a public school teacher that are certainly inappropriate. However, when the district demanded these stop he did so.

Subsequently he began praying on the field, alone and silent, after games. This action did attract some students to join him, but since he did not require participation he was violating no one’s rights, nor was he acting as a government agent at that time.
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New research suggests flowing water existed intermittently on Mars from 2.5 to 3.6 billion years ago.

9:26 am

Based on a study of alluvial fans on Mars, river sediment thought to have been placed at the foot of mountains, scientists have concluded that liquid water could have been flowing from as 2.5 to 3.6 billion years ago.

“We’ve known for decades that Mars had rivers and lakes around 3.5 billion years ago, but in the past few years there has been a growing body of evidence that substantial amounts of liquid water continued to erode the Martian surface for hundreds of millions of years,” said Morgan, lead author on “The global distribution and morphologic characteristics of fan-shaped sedimentary landforms on Mars” that appears in Icarus. “Water-formed landforms, such as river deltas and alluvial fans, are the most unambiguous markers of past climate. So we conducted a global survey for these features and explored patterns in their distribution and morphologic properties.”

Morgan and co-authors including PSI Senior Scientist Alan Howard found that alluvial fans are found at lower elevations than the more ancient valley networks, suggesting that stable liquid water became restricted to lower, warmer regions as Mars cooled and dried.

…What is particularly interesting about the Martian fans is that many formed much later than the valley networks, which have long been considered the strongest evidence for surface water on early Mars. Valley networks largely date to around 3.6 billion years ago, but alluvial fans date to 2.5 to 3 billion years ago.

This research merely increases the fundamental geological mystery of Mars. While the surface evidence strongly tells us that liquid water once flowed on the surface, no climate model exists that satisfactorily makes that possible. The atmosphere appears to have always been too cold and thin for liquid water.

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NASA completes suborbital launch from commercial spaceport in Australia

8:59 am

Early this morning NASA successfully completed its first rocket launch from Australia since 1995, launching a suborbital payload from a new commercial spaceport on the northern coast of Australia.

The rocket is Nasa’s first of three to blast off from the newly constructed Arnhem Space Centre on the edge of the Northern Territory. Scientists hope it will help them study the impact of a star’s light on the habitability of nearby planets.

Onlookers who travelled to the remote site glimpsed the rocket for only about 10 seconds before it shot out of view.

After a short fifteen minute flight the sounding rocket and payload were recovered. The next suborbital launch is scheduled for July 4th.

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Iran claims it has completed a second suborbital test of new rocket

8:48 am

According to Iran’s state-run press, it yesterday successfully completed the second suborbital test of its new Zuljanah rocket.

The announcement said nothing about where or when the launch took place. According to this Iranian report, the rocket “has two solid propulsion phases and a single liquid propulsion phase.”

The rocket had completed a suborbital test in January 2021. In March 2022 satellite imagery suggested a second test had exploded on the launchpad sometime in late February.

Since the video of the launch provides no specific information about where or when, it is quite possible it is simply footage from the January 2021 launch. It will require orbital imagery to confirm this claim.

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German smallsat rocket startup signs orbital tug startup as launch customer

9:54 am

Capitalism in space: Isar, one of three German smallsat rocket companies hoping to launch their own rockets, has won a launch contract from D-Orbit, one of three companies building orbital space tugs designed to provide in-orbit transportation to cubesats.

Isar Aerospace announced today that it has entered into a firm launch services agreement with space infrastructure pioneer D-Orbit. The company’s launch vehicle Spectrum, which is developed for small and medium satellites and satellite constellations, will launch D-Orbit’s ION Satellite Carrier as a primary customer to a Sun-synchronous orbit from its launch site in Andøya, Norway with a launch term starting in 2023.

This is Isar’s third launch contract. The company has also raised almost $200 million in investment capital in the past year and a half.

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Cygnus freighter fires engine, adjusts ISS orbit for first time

9:47 am

For the first time the engines on a Cygnus capsule were used successfully yesterday to adjust the orbit of the International Space Station (ISS).

On Saturday, June 25, Northrop Grumman’s Cygnus completed its first limited reboost of the International Space Station. Cygnus’ gimbaled delta velocity engine was used to adjust the space station’s orbit through a reboost of the altitude of the space station. The maneuver lasted 5 minutes, 1 second and raised the station’s altitude 1/10 of a mile at apogee and 5/10 of a mile at perigee. This Cygnus mission is the first to feature this enhanced capability as a standard service for NASA, following a test of the maneuver which was performed in 2018 during Cygnus’s ninth resupply mission.

NASA’s goal is to have this capability without relying on Russia’s Progress capsules, which up until now have been used to adjust the station’s orbit. It appears from yesterday’s test this this goal has now been met.

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Blue Origin abandons plans to land New Glenn first stages on purchased cargo ship

9:31 am

Capitalism in space: This week it was revealed that Blue Origin has abandoned its plan to use a purchased and refurbished cargo ship as an ocean landing platform for the first stages of its New Glenn rocket.

The company had bought the ship in 2018, when it thought New Glenn would be flying by 2020, and planned to reconfigure it by covering it with a giant landing pad. It appears the company abandoned that plan because of cost. What it plans to do instead to provide New Glenn first stages a place to land remains unclear.

Some historical details that provide some context and might explain the change in plans. In 2016 Blue Origin was launching test flights of its New Shepard suborbital craft on almost a monthly basis. It appears to have an aggressive attitude towards development, with New Glenn aiming for a 2020 launch.

In 2017 Jeff Bezos hired Bob Smith to take over as Blue Origin’s CEO. At that point development slowed to a crawl. For the next four years New Shepard test flights dropped to about one per year. Also at that time development of the BE-4 rocket engine needed for both New Glenn and ULA’s Vulcan rocket also slowed to a crawl, apparently because the company’s management would not commit funds to buy extra engines for testing.

In 2018 Blue Origin signed a deal with the Air Force, thus delaying New Glenn’s first launch by a year. The deal appeared to stem from a desire of Blue Origin management to get government contracts and money first rather than committing any company money to development, the approach used by older big space companies for decades. While it reduces risk, this approach also makes the government a partner in development, which has historically slowed all development while significantly raising costs.

That same year it bought this ship as the rocket’s landing pad, though relatively little work is done on it for years.

In 2021 Jeff Bezos stepped down as Amazon CEO to focus more time on Blue Origin. Suddenly, New Shepard ups its launch rate, and finally starts flying passengers. At the same time, the testing of the BE-4 engine appears to accelerate.

Now Blue Origin is abandoning this ship that was purchased after Bob Smith took over.

Does one get the feeling that Bezos might have finally realized that the management under Smith was not very effective? Smith is still Blue Origin’s CEO, but one wonders how long this will last.

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Psyche will not launch as scheduled

9:06 am

NASA officials yesterday confirmed that because of software issues its asteroid mission Psyche will not launch as scheduled this year.

Due to the late delivery of the spacecraft’s flight software and testing equipment, NASA does not have sufficient time to complete the testing needed ahead of its remaining launch period this year, which ends on Oct. 11. The mission team needs more time to ensure that the software will function properly in flight.

…As the mission team at NASA’s Jet Propulsion Laboratory in Southern California began testing the system, a compatibility issue was discovered with the software’s testbed simulators. In May, NASA shifted the mission’s targeted launch date from Aug. 1 to no earlier than Sept. 20 to accommodate the work needed. The issue with the testbeds has been identified and corrected; however, there is not enough time to complete a full checkout of the software for a launch this year.

NASA management will conduct a review to understand what caused the problem.

As for when Psyche can next launch and reach the asteroid Psyche, the next launch windows in ’23 and ’24 will not arrive at the asteroid until ’29 or ’30 respectively, a flight time that is about two years longer than what the ’22 launch would have been.

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Today’s blacklisted Americans: Lawyers who won NY gun rights case in Supreme Court blackballed by their law firm

1:06 pm

A witch hunt against conservative lawyers
The witch hunt against conservative lawyers accelerates.

Blacklists are back and the Democrats have got ’em: The two lawyers who recently won a major gun rights victory in the Supreme Court this week, invalidating the “may-issue” gun control laws in leftist states that prevented anyone from obtaining a gun license, have been blackballed by their law firm, Kirkland & Ellis, and forced to resign.

Former Solicitor General Paul Clement and Erin Murphy, a regular Supreme Court litigator, resigned from Kirkland & Ellis and announced they were opening their own shop in Washington, D.C. Clement has been a high-profile litigator of conservative causes since he left the administration of President George W. Bush. In 2011, he argued the Defense of Marriage Act on behalf of Republican lawmakers before the Supreme Court.

That case also caused Clement to resign from the firm King & Spalding following pressure from clients to drop the gay marriage case.

As reported at Politico:
» Read more

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Perseverance’s first climb

12:03 pm

Perseverance's first climb
Click for full image.

Cool image time! The photo to the right, rotated, cropped, and reduced to post here, was taken by the high resolution camera on the Mars rover Perseverance on June 16, 2022, shortly after it began its first climb up from the generally flat floor of Jezero crater and onto the delta that once in the far past flowed through a gap into that crater.

I have rotated the image about 8.5 degrees to make horizontal the crater floor and the distant rim of the crater (barely visible through the atmosphere’s thick winter dust). This shows that the rover was then climbing what appears to be a relative low angle grade, hardly as challenging as the serious grades that Curiosity has been dealing with now for the past two years in the foothills of Mount Sharp. Nonetheless, Perseverance has begun climbing.

To see where the rover is see the overview map from the start of this week. Unfortunately, I have been unable to determine the direction of this photo. It could be looking west, south, or east, based on features inside Jezero Crater. I therefore cannot tell you the distance to the rim, which depending on the direction, could be from five to twenty-five miles away.

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NASA now targeting late August launch of SLS

11:35 am

NASA officials today confirmed that they are satisfied with the results from this week’s incomplete dress rehearsal countdown of the SLS rocket, and are targeting a late August launch of SLS.

NASA officials have reviewed the data collected during the test run and decided that a leaky hydrogen valve was not significant enough to force a delay in the launch of Artemis I, an uncrewed mission planning to orbit the moon and return to Earth. It’s the first step toward putting humans back on the moon for the first time since Apollo 17 in 1972.

“The team is now ready to take the next step and prepare for launch,” said NASA’s deputy associate administrator Tom Whitmeyer.

NASA officials said they will roll the massive Space Launch System rocket back to the Vehicle Assembly Building, where the valve’s faulty seal will be replaced. Rollback is slated for Friday July 1, though weather concerns could push that back.

SLS won the five-plus year race with the Webb telescope on which would have the most delays and launch last. Now the race will be between SLS and SpaceX’s Starship/Superheavy. Which will launch first this summer? In a rational world, SLS should win hands down. It has been in development since 2004, while Starship only began design work in 2017.

This is not a rational world, however, and SLS’s long gestation had little to do with designing a rocket and everything to do with politics and a corrupt Congress and an incompetent NASA. The rocket that has come out of this is thus difficult to operate and incredibly cumbersome. Its components have also not been tested thoroughly.

SpaceX meanwhile has been designing and building its heavy-lift rocket with only one goal: the rocket must be efficient to operate.

I predict Starship will reach orbit first, though if it doesn’t it most likely will be because SpaceX finds it needs to do more ground tests and revisions, not because SLS has surged ahead. And regardless, Starship will likely fly many times in the next three years, while SLS will only get off the ground once.

More important, the chances of SLS and Orion working perfectly throughout that that lunar orbit mission seem almost impossible, based on track record during the past eighteen years of both programs. Expect some issues to crop up, first during the launch countdown, forcing several scrubs, and then during the mission itself. None might be mortal, but all will raise questions whether it would be wise to put humans on this rocket and capsule on its next flight, and attempt to take them to the Moon.

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NASA halts sale of Apollo 11 Moon dust, claiming ownership

10:37 am

We’re here to help you: The auction of a tiny amount of Moon dust brought back by Apollo 11 and used in a post-flight experiment using German cockroaches has been canceled because NASA claimed ownership of that dust and demanded its return.

“NASA asserts legal ownership of the materials consisting of the Apollo 11 lunar dust experiment … based upon the information and documentation provided in the description of the lot and evidence regarding NASA’s contemporaneous contracting practices,” an attorney in NASA’s Office of the General Counsel wrote RR Auction in a letter on Wednesday, a week after first reaching out to the firm. “It is clear and undeniable that the materials consisting of the experiment are owned by NASA.”

The lot under contention comprises what remains from the late Marion Brooks’ research into the physiological effects of lunar material on Blattellas germanica, or German cockroaches. The insects had been fed moon dust by NASA scientists in the immediate aftermath of the 1969 Apollo 11 lunar landing mission. After no ill-effects were seen while astronauts Neil Armstrong, Buzz Aldrin and Michael Collins were held in quarantine, the (now dead) cockroaches were handed off to Brooks, an entomologist from the University of St. Paul, for more thorough study.

Included in the auction was a small vial of moon dust that Brooks’ had carefully extracted from the cockroaches’ corpses, as well as three of the remaining (dead) cockroaches and two boxes of tissue slides for microscopic study.

It appears the dust had been in the Brooks family possession for more than forty years, then sold by them at auction in 2010 for $10,000. Under standard adverse possession law, you lose ownership if you don’t claim that right after twenty years. It would thus seem that NASA’s claim is bogus.

But then, NASA as a government agency doesn’t believe the standard laws apply to it. It continues to demand that all Apollo lunar material belongs to it and be returned, no matter what the circumstances it was originally handed out by the agency and no matter how long ago.

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LRO scientists locate impact on Moon from rocket stage believed to be Chinese

10:26 am

Impact, before and after

The science team for Lunar Reconnaissance Orbiter (LRO) today released images identifying the location on the Moon where a mystery rocket stage crashed in March 2022.

The image to the right shows the before and after LRO images, with the impact at the center of the second photo, showing as two superimposed craters. Since the sunlight in the second image come from the opposition direction as the first, the shadows in all previously existing craters are reversed.

Surprisingly the crater is actually two craters, an eastern crater [59 feet diameter] superimposed on a western crater [52 feet diameter]. The double crater was unexpected and may indicate that the rocket body had large masses at each end. Typically a spent rocket has mass concentrated at the motor end; the rest of the rocket stage mainly consists of an empty fuel tank. Since the origin of the rocket body remains uncertain, the double nature of the crater may help to indicate its identity.

No other rocket body impacts on the Moon created double craters. The four Apollo SIV-B craters were somewhat irregular in outline (Apollos 13, 14, 15, 17) and were substantially larger [>115 feet in diameter] than each of the double craters. The maximum width [95 feet] of the double crater of the mystery rocket body was near that of the S-IVBs.

Though the evidence strongly points to this stage being from China, that fact is not certain, and China denies that conclusion.

Regardless, the unexpected double nature of the impact only increases the mystery, as it suggests that rocket stage had a mass distribution different than past stages.

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NASA blocks Starship/Superheavy launches at SpaceX’s new Florida launchpad

9:37 am

Capitalism in space: NASA officials revealed yesterday that it will not allow any Starship/Superheavy launches at SpaceX’s new Florida launchpad, at least for the moment, because of the threat a launchpad failure might have on the launchpad SpaceX uses to launch manned Falcon 9 missions to ISS.

The NASA statement said the agency “is responsible for ensuring SpaceX remains compliant with the requirements of the property agreement for the use of Launch Complex 39A.”

“These requirements include those related to construction, safety and environmental conditions,” the statement said. “At this time, NASA has only provided approval to build. Additional review for hazards, operational impacts and supportability will be required prior to a launch.”

The new Starship launchpad is 1,000 feet away from pad 39A, which is SpaceX’s manned Dragon launchpad. NASA management thinks this is too close. However, the managers have also not ruled out future launches, only that they wish to do a thorough review of the issue with SpaceX.

Because NASA and the federal government is also relying on Starship to land its astronauts on the Moon, it can’t block Starship flights outright. It could be however that this issue might shift Starship operations back to Boca Chica, after federal government opposition there forced SpaceX to shift more operations to Florida.

In other words, the government wants its cake and eat it to. Some factions within the Biden administration and the Washington bureaucracy want to block Starship, others want it to fly. The result is a tug-of war, with SpaceX in the middle.

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OneWeb to resume satellite launches this year, complete constellation by mid-2023

9:24 am

Capitalism in space: According to one OneWeb official at a conference yesterday, the company now expects to resume launching its satellites on SpaceX and Indian rockets by the fourth quarter of this year and will complete its constellation by the second quarter of next year.

Launches were suspended when Russia refused to do a launch — and confiscated the 36 satellites — after Europe imposed sanctions in response to the Russian invasion of the Ukraine.

Speaking at the Fourth Summit for Space Sustainability by the Secure World Foundation and the U.K. Space Agency, Maurizio Vanotti, vice president of space infrastructure development and partnerships at OneWeb, said new launch agreements with SpaceX and NewSpace India Ltd. (NSIL) would allow the company to launch the remaining satellites of its first-generation system by the second quarter of 2023.

“Our plan is to be back on the launch pad in quarter four, after the summer, and to complete deployment of the constellation by quarter two next year,” he said. It will take several months after that final launch for the satellites to move to their operational orbits, he added. “We’re going to be in service with global coverage, 24/7, by the end of next year,” he said.

At present OneWeb has not revealed the breakdown of launches from the two companies.

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Blue Origin’s BE-4 engine set for “commissioning” tests

1:29 pm

Capitalism in space: According to a tweet from Blue Origin on June 21, 2022, engineers have finally installed a flight-worthy engine on the test stand in Huntsville for static fire “commissioning” tests.

This is an engine that was supposed to be delivered to ULA for its new Vulcan rocket more than two years ago. With final engine tests only beginning now, it likely means the engine will not be delivered for at least several more months.

ULA will then have to install it in the rocket, and do its own fueling and static fire tests. All this suggests that a Vulcan launch before the end of this year is almost impossible.

When Blue Origin’s own New Glenn rocket will fly using the BE-4 is utterly unknown. ULA at least has built a full-scale test version of Vulcan and done launch countdown rehearsals in order to iron out issues with its launchpad and ground systems. Blue Origin has done none of this.

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Pushback: University of Houston forced to allow free speech to settle lawsuit by conservatives

12:12 pm

University of Houston: reluctantly forced to recognize the First Amendment

Bring a gun to a knife fight: When in December 2021, the University of Houston changed its anti-discrimination policy, broadening the definition so widely that almost anything anyone said could be defined as harassment, three conservative students obtained the help of the first amendment organization Speech First and sued. From their lawsuit [pdf]:

The Policy’s “[e]xamples of harassment” make clear that the Policy covers protected speech. Examples of harassment “include but are not limited to: epithets or slurs, negative stereotyping, threatening, intimidating, or hostile acts, denigrating jokes and display or circulation (including through email or virtual platforms) of written or graphic material in the learning, living, or working environment.”

Under the Policy, even “[m]inor verbal and nonverbal slights, snubs, annoyances, insults, or isolated incidents including, but not limited to microaggressions,” can constitute harassment if “such incidents keep happening over time and are targeting a Protected Class.” The Policy warns that “academic freedom and freedom of expression will not excuse behavior that constitutes a violation of the law or this Policy.” [emphasis mine]

In other words, according to the highlighted quote, the university’s anti-discrimination policy attempted to overide the First Amendment to the Constitution.
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A major update from Curiosity’s science team

10:13 am

Panorama of Mars
Click for full image.

layered flaky rocks
Click for full image.

In a press release today, the Curiosity science team provided a major update on the rover’s recent travels in the mountain foothills of Gale Crater.

First and foremost was the new information about the rover’s wheels, which was buried near the bottom of the release:

The rover’s aluminum wheels are … showing signs of wear. On June 4, the engineering team commanded Curiosity to take new pictures of its wheels – something it had been doing every 3,281 feet (1,000 meters) to check their overall health. The team discovered that the left middle wheel had damaged one of its grousers, the zig-zagging treads along Curiosity’s wheels. This particular wheel already had four broken grousers, so now five of its 19 grousers are broken.

The previously damaged grousers attracted attention online recently because some of the metal “skin” between them appears to have fallen out of the wheel in the past few months, leaving a gap.

The team has decided to increase its wheel imaging to every 1,640 feet (500 meters) – a return to the original cadence. A traction control algorithm had slowed wheel wear enough to justify increasing the distance between imaging.

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Blue Origin determines New Shepard ticket prices by who you are and what you can pay

9:08 am

From the first commercial launch of Blue Origin’s suborbital New Shepard spacecraft in 2021, the company has refused to reveal what its standard price is for a ticket.

Now, after five flights and fourteen passengers, one journalist has determined that the company does not appear to have a standard price, but instead determines its prices depending on who you are and what you can pay.

Blue Origin doesn’t advertise price information on its flight reservation page. Passengers say they have paid from zero to nearly $30 million. Industry insiders say Blue Origin’s ticket price is tailored to individual passengers based on a variety of factors.

“It’s not about money; it’s about who you are, your social capital, whether you align with their launch purposes. It’s kind of a package deal,” said Roman Chiporukha, cofounder of SpaceVIP, a platform that helps the wealthy book space trips, including Blue Origin’s. Blue Origin declined to discuss its pricing strategy. [emphasis mine]

How very socialist of Blue Origin, to treat people differently depending on such factors. Under this policy, people have paid from zero to $28 million per ticket.

The ticket policy itself is not illegal — as long as the price differences are not related to race, ethnicity, sex, or religion. It is just unseemly to consider a person’s wealth and status in determining a price.

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China and Europe complete launches

8:47 am

In the past 24 hours both Europe and China successfully completed launches.

First Arianespace’s Ariane-5 rocket yesterday launched two commercial communications satellites, for Malaysia and India. With this flight the Ariane-5 rocket has only four flights to go before it is retired and replaced with ArianeGroup’s not-yet flown Ariane-6 rocket.

Then, China today used its Long March 2D rocket to launch three remote-sensing satellites.

The leaders in the 2022 launch race:

26 SpaceX
20 China
8 Russia
3 Rocket Lab
3 ULA
2 Europe (Arianespace)

The U.S. still leads China 35 to 20 in the national rankings, and the entire world combined 35 to 33.

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A snakelike Martian ridge

1:21 pm

A snakelike Martian ridge
Click for full image.

Cool image time! The photo to the right, rotated, cropped, and reduced to post here, was taken on November 22, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows what the science team labeled a sinuous ridge. Make sure you also look at the full image. The ridge goes on to the south, but then fades way as an almost perfect ramp, only to have another even more wiggly but thinner north-south ridge begin only a few feet to the west.

Sinuous ridges like this are found in many places on Mars. Almost always their origin is thought the result of a former river channel that became a ridge when the surrounding softer material eroded away.

That explanation however does not seem to work for this ridge. It has too many other inexplicable features. For example, note how the peak of the ridge smoothly transitions from sharp to flat-topped. It has a soft appearance that is strengthened by the gap near the top.

It is almost as if this ridge is a kind of elongated sand dune! And guess what: The overview map below gives that explanation some believability.
» Read more

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Today’s blacklisted American: School board threatens parent with lawsuit if she doesn’t shut up

12:16 pm

Alexandra Schweitzer: a true momma grizzly
Alexandra Schweitzer: a true momma grizzly

When parent Alexandra Schweitzer began challenging publicly the use of inappropriate sexual materials in the elementary schools in Oconomowoc Area School District (OASD) in Wisconsin, the school board made what appeared to be some minor superficial changes in its policy without really addressing her concerns.

Above all, school district officials would not confirm unequivocally that these materials — many of which advocated the queer agenda on gender — had been removed. Unsatisfied with this response, Schweitzer expanded her campaign.

After enrolling her children elsewhere, Alexandra continued to be an advocate and resource for local parents regarding their concerns. As President of No Left Turn in Education [NLTE]– Wisconsin, Schweitzer voiced her concerns, and those of district parents, in public forums and in testimony before the Wisconsin legislature.

Apparently, the school district did not like what she said in those public forums or in that testimony. It proceeded to hire an outside lawyer — using school funds — to send Schweitzer a cease-and-desist letter [pdf], threatening further legal action against her if she did not retract her statements and then shut up.
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A telescope using a liquid mirror about to become operational

10:02 am

Link here. The telescope, located in the Himalayas, is “an international collaboration between institutions in India, Belgium, Poland, Uzbekistan and Canada.”

The mirror works by rotating it so that its thin layer of liquid mercury forms a parabola.

The tradeoff is that the [telescope]is fixed in a single position, so it only observes one strip of the night sky as the Earth rotates below it. But since the telescope will be hyper-focused on just one area, it’s well-suited for spotting transient objects like supernovas and asteroids.

It appears the scientists will use it to study this same strip of sky over five years, hoping to detect changes in that time period.

This telescope is more a technology test than an actual observatory. Eventually the best place to put such a telescope — and much larger — will be on the Moon, and to do that requires some construction and testing beforehand.

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InSight team decides to shorten lander’s life to operate seismometer longer

9:49 am

The InSight science team has decided to continue to operate the lander’s seismometer through August rather than turning it off at the end of June, even though that longer use will drain InSight’s batteries sooner and kill the lander shortly thereafter.

The previous plan would have allowed the lander to survive through the end of the year, but would have meant no earthquake data would have been gathered after June.

To enable the seismometer to continue to run for as long as possible, the mission team is turning off InSight’s fault protection system. While this will enable the instrument to operate longer, it leaves the lander unprotected from sudden, unexpected events that ground controllers wouldn’t have time to respond to.

“The goal is to get scientific data all the way to the point where InSight can’t operate at all, rather than conserve energy and operate the lander with no science benefit,” said Chuck Scott, InSight’s project manager at NASA’s Jet Propulsion Laboratory in Southern California.

Apparently they have realized that it is now very unlikely that a dust devil will come by and clear the dust from InSight’s solar panels, so keeping the spacecraft alive longer — but getting no data — does not make sense.

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