Link here. The article is mostly what I would call “in the weeds,” mostly of interest to engineering geeks. Nonetheless, the progress described suggests that they are working hard to meet Musk’s proposed schedule of first test flight by October, and even have a small chance of doing it.
The used “dumb” machine we
paid $285 for that actually
cleans our clothes.
The “smart” machine that we
paid $923 for and sold for $40.
Two years ago our old Kenmore Series 80 washing machine broke down. The repair guy said it would be so expensive to fix that he recommended it was time to buy something new.
So off we went to Sears, where we ended up buying one of today’s modern “smart” machines for a mere $923. As the LG website proudly exclaims,
A Smarter Way to Wash: 6Motion™ Technology uses up to 6 different wash motions to provide a smart cleaning experience that is gentle on clothes and maximizes washing performance.
The problem was the machine never got any of our clothes clean. It also refused to provide enough water. The way it worked was to sense the weight of the clothes you put inside, and determine the needed amount based on this. Routinely, it wasn’t enough, so Diane did web searches to discover numerous owners faking out the machine’s brains by pouring several buckets of water on top of the clothes before turning on the machine, making them weigh more.
The machine also did not have an agitator, the new in-thing among washing machine manufacturers two years ago, probably forced on them by new federal regulations. And though the tub itself did shake, it did it so gently that the clothes hardly moved.
There were also other issues with the machine’s smart technology that frustrated Diane. The machine was boss, and would not allow for any flexibility to its predetermined wash and rinse cycles, even when they made no sense.
Last week Diane had had enough. » Read more
This article provides a nice detailed Arab perspective on the upcoming September 25 launch of the United Arab Emirates’ (UAE) first manned mission, sending one of their jet fighter pilots on a Soyuz to ISS for about a week.
The article not only also reviews the entire history of past Arab astronaut missions in space, the first on an American shuttle in 1985 and the second on a Soyuz in 1987, it summarizes the present-day space-related efforts throughout the Arab world, not just in the UAE. Good information in advance of this week’s upcoming launch.
An evening pause: If only we could always communicate this easily with government officials.
Hat tip Phill Oltmann.
NASA has awarded a $13.7 million contract to Advanced Systems to build a cubesat to test placement and operation in the orbit the agency wishes to place its Lunar Gateway space station.
The Cislunar Autonomous Positioning System Technology Operations and Navigation Experiment (CAPSTONE) is expected to be the first spacecraft to operate in a near rectilinear halo orbit around the Moon. In this unique orbit, the CubeSat will rotate together with the Moon as it orbits Earth and will pass as close as 1,000 miles and as far as 43,500 miles from the lunar surface.
The pathfinder mission represents a rapid lunar flight demonstration and could launch as early as December 2020. CAPSTONE will demonstrate how to enter into and operate in this orbit as well as test a new navigation capability. This information will help reduce logistical uncertainty for Gateway, as NASA and international partners work to ensure astronauts have safe access to the Moon’s surface. It will also provide a platform for science and technology demonstrations.
While proving the capability of cubesats for these unmanned planetary probes is all to the good, I must once again point out that making this orbit a way station on the way to the Moon actually makes it more difficult to get there. More fuel and equipment is required to transfer to the Moon once you are in Gateway’s planned orbit.
Based on our past experience with NASA boondoggles like this, Gateway will therefore act as a drag on future American lunar exploration. While other nations (China, India) will be landing on the surface, we will repeatedly find that our surface missions are delayed because of the added complexity of going from Earth to Gateway and then to the surface.
Click for full image.
The Gemini Observatory on Mauna Kea has successfully taken the first high resolution image of comet C_2019 Q4, unofficially Comet Borisov (after its discoverer), the first interstellar comet ever discovered.
The image to right, cropped to post here, is that image. It clearly shows the growth of a coma and possible tail, indicating that as it is approaching the Sun it is releasing material from its surface.
Right now the comet is visually very close to the Sun, when looked at from the Earth, making observations difficult. As in the next few months it drops towards its closest approach of the Sun, and the Earth circles around in its own orbit, the viewing angle will improve.
The Lunar Reconnaissance Orbiter (LRO) science team plans to take high resolution images of the Vikram landing site when the orbiter flies over that site on September 17, thus allowing them to release before and after images.
Noah Petro, LRO’s project scientist at NASA’s Goddard Space Flight Center, said that the orbiter is due to fly over the Vikram landing site Tuesday, Sept. 17. “Per NASA policy, all LRO data are publicly available,” Petro wrote in an email. “NASA will share any before and after flyover imagery of the area around the targeted Chandrayaan 2 Vikram lander landing site to support analysis by the Indian Space Research Organization.”
Officials with India’s space agency ISRO have said they have photographed Vikram with their orbiter, Chandrayaan-2, but they have not released these images as yet. Their have also been reports from India stating that their images suggest the lander is still in one piece, but these reports are not confirmed.
LRO’s images should clarify the situation. The images should also help tell us what exactly happened after Indian engineers lost contact with Vikram shortly before landing.
Chinese officials have now admitted that the next launch of China’s biggest but troubled rocket, the Long March 5, will not occur until December 2019 at the earliest.
Moreover, the first launch of Long March 5B, the new version of the rocket developed following the Long March 5 failure on its second launch in 2017, won’t happen until 2020. This is the version they plan to use to launch their space station modules, and these delays probably thus delay start of the in-orbit assembly of their space station by two years, to 2022.
These rocket delays also threaten the launch of China’s Chang’e-5 lunar sample return mission and their first Mars orbiting mission, which has a firm summer 2020 launch window which if missed will delay the mission’s launch for two years.
These reports also for the first time officially explain the engine trouble that caused the Long March failure on its second launch in July 2017.
Addressing the causes of the failure has required a lengthy process of redesign and testing of the YF-77 liquid hydrogen-liquid oxygen propellant engines. Two YF-77 engines power the rocket’s first stage, with an oxidizer turbopump isolated as the fault behind the 2017 launch failure.
The Space News article very strangely headlines the completion of the core module for China’s space station, when the real story here is the continuing delays in getting Long March 5 off the ground. Without that rocket none of China’s big space plans can proceed. Yet the article buries this scoop many paragraphs down. I wonder why.
China yesterday used its Long March 4B rocket to launch three satellites into orbit.
This was the first Long March 4 launch since May, when the third stage of a Long March 4C rocket failed. The main payload was a remote sensing satellite with both civilian and military applications. The second satellite was to provide ocean data and weather, with the third a cubesat testing new space communications and the use of a drag sail for de-orbiting.
The leaders in the 2019 launch race:
15 China
14 Russia
10 SpaceX
6 Europe (Arianespace)
The U.S. continues to lead China 19 to 15 in the national rankings.
An evening pause: Sadly, I think this short film captures well the cold inhumanity of the coming future, even if it also shows us a technological society capable of routine tourist travel to the stars.
Hat tip Cotour.
Click for full resolution image.
As the Martian spring started to unfold in April 2019, the focus of many Martian planetary scientists immediately shifted to the northern polar icecap, where they fully expected, based on previous experience, some spectacular events to occur.
I have already reported on this year’s initial observations of the sublimation of the carbon dioxide frost layer. That frost layer, generally less than six feet thick, falls as dry ice snow with the coming of winter, then sublimates away each spring. Since the arrival of Mars Reconnaissance Orbiter (MRO) in 2006 and its discovery of this process by its high resolution camera, these scientists have been monitoring the disappearance of that frost layer from Martian year to Martian year.
That sublimation process also brings with it other spectacular changes, including the coming of frequent avalanches along the high cliff scarps, ranging in heights from 1,500 to 3,000 feet, that comprise the edge of that north pole icecap. The image above, reduced to post here, shows one of the many avalanches found this spring and photographed as they were actually happening. It looks down at the cliff that runs from the left to the lower right of the image, with its top being the flat plateau in the lower left. From the caption, written by Dr. Candice Hansen of the Planetary Science Institute in Tucson, Arizona,
Every spring the sun shines on the side of the stack of layers at the North Pole of Mars known as the north polar layered deposits. The warmth destabilizes the ice and blocks break loose.
When they reach the bottom of the more than 500 meter tall cliff face [about 1,600 feet], the blocks kick up a cloud of dust. (In the cutout, the top layer of the north polar cap is to the lower left.) The layers beneath are different colors and textures depending on the amount of dust mixed with ice.
The linear many-layered look of that cliff face is due to the many layers believed to exist within the permanent water icecap of Mars. To give some perspective, this cliff is several hundred feet taller than the World Trade Center after completion. Those falling blocks are dropping farther than the bodies that horribly fell from the Trade Center the day it was hit by airplanes flown by Islamic terrorists on September 11, 2001.
The map below shows most of the eastern half of that icecap, with the white boxes showing the various places MRO has spotted such avalanches.
» Read more
Click for full resolution image.
With Mars moving out from behind the Sun yesterday, the Curiosity science team has successfully reestablished communications with the rover.
The focus of Curiosity’s activities since returning to operations after conjunction, now that Mars has safely moved out from behind the sun, is to finish up the analyses associated with the drilling campaign at “Glen Etive 1.”
The image to the right, cropped and reduced to post here, was among the first images downloaded from the rover once communications were reestablished. It was taken by a camera at the end of the robot arm that the scientists had positioned above the hole in order to get a close-up.
Before continuing up the mountain they now plan a second drill hole close-by, to better constrain the data at this location obtained from this first hole.
