Year: 2019

Strange Martian gullies

3:06 pm

Gullies on Mars
Click for full image.

Cool image time! The image to the right, cropped and reduced to post here, was taken in 2010 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). Uncaptioned, the image page is simply entitled “Older Gullies and Channels in Slopes of Softened Large Crater.”

I stumbled upon it today while researching another image taken this year of the “valley networks” in the floor of that same crater. Those networks were intriguing, but the gullies on the right were much more fascinating, because they appear to be some form of erosion drainage coming down both sides of a high ridge near the northern rim of this large apparently unnamed crater in the southern cratered highlands of Mars, to the west of Hellas Basin.

On Earth my immediate explanation for this erosion would be a major monsoon-like storm, such as we get here in the southwest and call “gully-washers.” When a lot of water is quickly dumped onto a hill where there is not of vegetation to help bind the soil together, the water will quickly carve out gullies that looks almost exactly like these.

On Mars, who knows? It certainly wasn’t a monsoon thunderstorm that did this. And being in the Martian southern highlands it is unlikely it was from an ocean of any kind. Were there lakes here? Past research has found places where lakes might have existed on Mars, but these places are far north in the transitional zone into the northern lowlands.

Nor are these gullies the only interesting features in this one image.
» Read more

0 comments

Anarchists threaten to dox any new student for joining conservative groups at Texas university

9:24 am

They’re coming for you next: An anarchist organization with many ties within the University of Texas at Austin has now publicly threatened to reveal the personal contact information of any new student who dares join several different conservative organizations.

“Do you wanna be famous? If you join YCT or Turning Point USA, you just might be. Your name and more could end up on an article like one of these,” the tweet said, linking to previous doxxing posts of conservative students at the school. “So be sure to make smart choices at #UTOrientation.”

Last year the network released extensive personal information of pro-Brett Kavanaugh demonstrators at UT Austin, including their names, photos and contact information. It went so far as to post some of the phone numbers of the employers of students and encouraged its adherents to call them to get them fired.

Composed mostly of students at UT Austin, the group also actively encourages the harassment of conservative students, having praised the destruction of signs and tactics of physical intimidation during the pro-Kavanaugh demonstrations.

The article notes that though the university claims it is acting to punish such doxing behavior by its students, it does not appear that anything has really been done. This group did it last year, and seems unafraid to do it again now.

5 comments

Schedule for Dragon/Starliner manned flights revised

9:04 am

Capitalism in space: NASA has released a new updated planning schedule for the manned flights of both SpaceX’s Dragon and Boeing’s Starliner manned capsules.

Boeing’s first unmanned demo flight of Starliner is now set for September 17, 2019. This will be followed by SpaceX’s first manned Dragon flight, scheduled for November 15, 2019. Boeing will then follow with its first manned Starliner flight on November 30, 2019.

These are considered target dates. I have great doubts that the Starliner schedule will proceed as described, while SpaceX’s schedule is more likely.

The article also had this interesting tidbit about the upcoming launch schedule of Sierra Nevada’s unmanned reusable cargo ship Dream Chaser:

According to the document, the first flight of Dream Chaser will take place in a planned September 2021 timeframe and will see the vehicle remain berthed to the International Space Station for up to 75 days before returning to Earth to land on a runway for reuse.

There are clearly issues with all these commercial projects. For example, the GAO today released a new report citing the numerous delays in this commercial manned program and calling for NASA to come up with a more complete back-up plan.

Nonetheless, the 2020s have the potential to be the most exciting decade in space exploration since the 1960s. If all goes even close to these plans, the U.S. will have three operating manned spacecraft (Dragon, Starliner, Orion), two reusable cargo spacecraft (Dragon, Dream Chaser), one non-reusable (Cygnus), and a plethora of launch companies putting up payloads of all kinds, from planetary missions to basic commercial satellites numbering in the thousands.

Much could happen to prevent all this. Keep your fingers crossed that nothing will.

3 comments

Blue Origin completes first test of lunar lander engine

8:48 am

Capitalism in space: This week Jeff Bezos revealed that Blue Origin had successfully completed the first static test firing of its BE-7 rocket engine, intended for use in its Blue Moon lunar lander.

Company founder Jeff Bezos tweeted June 19 that the test of the BE-7 engine took place the previous day at NASA’s Marshall Space Flight Center. The 35-second test went as expected, he said. “Data looks great and hardware is in perfect condition,” he wrote in the post, which included a video of the test.

Bezos is clearly lobbying here for the contracts to build NASA’s first manned lunar lander should its Artemis program get funded.

Meanwhile, there is been no update on the status of his company’s BE-4 engine since April 2018. I wonder why..

0 comments

Battery screw-up delays Russian X-Ray telescope launch

8:39 am

The Russians this morning postponed today’s launch of the Spectr-RG X-Ray space telescope until July when it was discovered that one of the payload’s batteries had been drained prematurely.

[T]he Moskovsky Komsomolets tabloid reported from Baikonur that the problem had been discovered at least a day earlier, but the entire project team at the launch site was kept in the dark until the launch date, not to interfere with Vladimir Putin’s annual press-conference.

According to the paper, the battery was accidentally activated on the launch pad instead of the planned moment after the separation of the spacecraft from the Block DM-03 upper stage. The error was blamed on the erroneous wiring setup by RKK Energia specialists (Block DM-03 prime contractor) between the upper stage and the spacecraft, which caused a complete drainage of the battery designed to be re-charged from solar panels. After the return of the rocket to the vehicle assembly building, the battery would have to be re-charged and the power-supply system re-wired, Moskovsky Komsomolets said. [emphasis mine]

If this report is true, it appears that the Russian government has done nothing to fix the quality control programs in its aerospace industry, and in fact is helping to contribute to them by playing games with launch procedures for the sake of its own public relations.

5 comments

Hawaii fully okays construction of TMT, removes protest structures

11:14 pm

The Hawaiian state government today finally gave the go-ahead for the construction of the Thirty Meter Telescope (TMT), sending close to 100 police officers to the mountain to remove four structures built by protesters to block construction.

[Democratic government David] Ige said he believes the state now has sufficient legal basis for construction to go more smoothly than it did following the telescope’s 2014 groundbreaking. After significant protests in 2014 and 2015, the state Supreme Court ruled in 2015 that a 2011 permit from the state Board of Land and Natural Resources was invalid after finding the Land Board violated due process rights of project opponents by voting before the first contested case was held.

However, the Supreme Court approved an amended permit late last year, allowing the project to seek a notice to proceed. The conditions of the amended permit state that the TMT will be the last telescope to be built on Maunakea and that five other telescopes at the summit will be decommissioned and removed.

Despite Ige’s confidence in the process, opponents are preparing for further protests. Kanuha said he intends to “try and stop it the same way we did the first time.”

“This is about more than the mountain, this is about how we treat land and natural resources in Hawaii,” Kanuha said. “If we allow this to happen, we can kiss goodbye all we hold precious in Hawaii. It’s just a matter of time.”

Another protester, Lakea Trask, warned of an inevitable conflict. “The state is declaring war on Hawaiians,” said Trask, who was arrested and charged with trespassing during the 2015 protests. “The state is now using TMT to declare war, an all-out war on Hawaiians.”

First, this is the second time the state has approved this project, which followed the law both the first time and now. Second, the protests that stopped construction in 2014 and 2015 were not “significant” but were led by a very small number of people. Third, those same protesters, as quoted above, probably intend to repeat their actions once construction resumes this summer. If so, expect violence. These people know they will not be seriously punished for breaking the law, and will take advantage of this.

7 comments

Mueller probe of Manafort initiated based on fake information

3:52 pm

The probe by Robert Mueller that put former Trump campaign aide Paul Manafort in prison was initiated using evidence, called “the ledger,” that Mueller knew was unreliable and likely fake.

In search warrant affidavits, the FBI portrayed the ledger as one reason it resurrected a criminal case against Manafort that was dropped in 2014 and needed search warrants in 2017 for bank records to prove he worked for the Russian-backed Party of Regions in Ukraine.

There’s just one problem: The FBI’s public reliance on the ledger came months after the feds were warned repeatedly that the document couldn’t be trusted and likely was a fake, according to documents and more than a dozen interviews with knowledgeable sources.

To get around this fact, which was made very clear to Mueller and his investigators, they leaked the fake data to the press, and then used the press stories to justify the investigation.

Submitting knowingly false or suspect evidence — whether historical or to support probable cause — in a federal court proceeding violates FBI rules and can be a crime under certain circumstances. “To establish probable cause, the affiant must demonstrate a basis for knowledge and belief that the facts are true,” the FBI operating manual states.

But with Manafort, the FBI and Mueller’s office did not cite the actual ledger — which would require agents to discuss their assessment of the evidence — and instead cited media reports about it. The feds assisted on one of those stories as sources.

For example, agents mentioned the ledger in an affidavit supporting a July 2017 search warrant for Manafort’s house, citing it as one of the reasons the FBI resurrected the criminal case against Manafort.

This is beyond corrupt. I would say that it should be grounds for dismissal for the charges against Manafort, even if he admitted to guilt. At a minimum, Mueller and his cohorts should be facing jail time.

12 comments

Glaciers growing on Greenland

11:21 am

Greenland's growing Jakobshavn Glacier
Click for full image.

Despite what the fake mainstream media and leftist Democratic Party politicians insist on telling us daily, the Greenland icecap remains largely stable, and shows no sign of disappearing anytime in the near future.

The image on the right, reduced to post here, is a series of images produced by radar instruments flown by a NASA airplane over Jakobshavn Glacier during the past three years and released this week by its project scientists. As noted in the release,

These images show the mass Greenland’s Jakobshavn Glacier has gained from 2016-17, 2017-18 and 2018-19. Areas with the most growth are shown in dark blue. Red areas represent thinning. The images were produced using GLISTIN-A radar data as part of NASA’s Ocean’s Melting Greenland (OMG) mission.

While this research is absolutely worthwhile, the mission has clearly been shaped by the global warming activism in NASA and the climate science community. Thus, the scientists for this mission are forced to say this on their website:

Humans are changing the climate by burning fossil fuels for energy. These add greenhouse gases to the atmosphere, which trap extra heat from the sun and warm the air and oceans.

I would bet however that the scientists for this project remain very skeptical about this NASA political statement. That they highlighted here a glacier that is growing, in contradiction to the routine media and activist claims that Greenland’s ice sheet is disappearing, indicates this.

Tony Heller at his climate blog today posted a very good summary of the very stable state of Greenland’s icecap, while also pointing out the dishonest and incompetent reporting about it from mainstream media sources like the Washington Post and Fox News. Check it out. As he concludes:

There has been no trend Arctic sea ice since the start of MASIE records thirteen years ago.

Greenland glaciers are growing. The last two years had near record surface mass gain. The current journalistic standard of cherry picking a day here and there, and then misrepresenting the meaning of it, is journalism at its worst.

The data shows a decline in that icecap in the early part of this century, followed by a significant recovery in the past three years. As he says, there has been no trend.

Be aware of this when ignorant politicians like Congresswoman Alexandria Ocasio-Cortez (D-New York) try to tell you we are all going to die of global warming in mere years. These fear-mongers know nothing, and should be laughed from the stage.

5 comments

Planning Hayabusa-2’s next sample grab on Ryugu

10:47 am

Target and man-made crater on Ryugu
Click for full image.

The Hayabusa-2 science team today released a mosaic image created using the images taken during the four close approaches to the site of the man made crater put there by a projectile fired from the spacecraft. The image on the right, reduced and cropped to post here, shows this area, with the white spot being the target they dropped onto the site during the most recent close approach. As they note in their release:

In order to collect this material, we need a second touchdown for which the project has been steadily preparing. At this point, it has not yet been decided whether or not to go ahead with a second touchdown, but here we will introduce our preparations in the “Approach to the second touchdown”.

After the operation to form the artificial crater, the spacecraft descended a total of four times above or near the crater site. These descent operations allowed us to obtain detailed data of the region near the artificial crater. In addition, we succeeded in dropping a target marker in the area close to the artificial crater on May 30. Combined, these operations mean that the situation around the artificial crater is now well understood.

Figure 1 [the image to the right] shows an image taken during the low altitude descent observation operation (PPTD-TM1B) conducted from June 11 – 13. The target marker was captured in the image and you can get a handle on the state of the surface. [emphasis mine]

Unfortunately they do not show us exactly where the man made crater is located in this mosaic. Nor was I able to locate it by comparing today’s image to a previous image that did indicate the location.

The only place that seems acceptable for their touch-and-go sample grab seems to be just above or to the left of the target. Whether this will get them any interior material thrown up during the impact however is unclear.

0 comments

The make-up and temperature of Uranus’s rings

10:34 am

The rings of Uranus

New radio images taken by the ground-based telescopes by the ALMA and VLT telescopes in Chile have allowed scientists to better determine the make-up and temperature of the rings of Uranus.

The image above is from their paper. From the caption:

Images of the Uranian ring system at 3.1 mm (ALMA Band 3; 97.5 GHz), 2.1 mm (ALMA Band 4; 144 GHz), 1.3 mm (ALMA Band 6; 233 GHz), and 18.7 μm (VLT VISIR; 100 THz)…The planet itself is masked since it is very bright compared to the rings.

From the article above:

The new images taken by the Atacama Large Millimeter/submillimeter Array (ALMA) and the Very Large Telescope (VLT) allowed the team for the first time to measure the temperature of the rings: a cool 77 Kelvin, or 77 degrees above absolute zero — the boiling temperature of liquid nitrogen and equivalent to 320 degrees below zero Fahrenheit.

The observations also confirm that Uranus’s brightest and densest ring, called the epsilon ring, differs from the other known ring systems within our solar system, in particular the spectacularly beautiful rings of Saturn.

“Saturn’s mainly icy rings are broad, bright and have a range of particle sizes, from micron-sized dust in the innermost D ring, to tens of meters in size in the main rings,” said Imke de Pater, a UC Berkeley professor of astronomy. “The small end is missing in the main rings of Uranus; the brightest ring, epsilon, is composed of golf ball-sized and larger rocks.” [emphasis mine]

The mystery is why this ring has no dust, something not seen with any other ring system in the solar system, including the inner rings of Uranus itself..

0 comments
1 … 80 81 82 83 84 … 156