The Bee Gees – Jive Talkin’
An evening pause: Performed live 1975.
Hat tip Diane Zimmerman.
Author: Robert Zimmerman
New analysis: COVID-19 was already widespread before the lock downs
It was all so unnecessary: A new analysis by scientists suggests strongly that COVID-19 was already widespread within the U.S. population before the national emergency was declared on March 13th and the lock downs thus imposed.
Although the limitations of our analysis limit the precision of our results, we can nonetheless conclude that unobserved SARS-CoV-2 infections in the United States by 12 March could have easily numbered in the hundreds of thousands … and quite possibly in excess of 1 million. This result, considered together with extensive presymptomatic and asymptomatic transmission of SARS-CoV-2, suggests that the United States was well past the possibility of containment by 12 March.
Essentially, what their analysis found is that COVID-19 had already arrived in the U.S. when our politicians panicked and destroyed our economy and millions of lives. By the time the lock downs were imposed the disease was here, and spreading fast. The lock downs were pointless, the social distancing was pointless, the house arrests were pointless, and most especially, the requirement to wear masks was pointless.
Like all flu-like viruses, COVID-19 was going to get here regardless. The best we could do is focus on protecting the most vulnerable (the aged sick), and go on with life boldly. Most of our politicians did not do that, and so they not only had more deaths among the aged sick than was necessary, they ruined everyone else’s lives as well.
And maybe the worst consequence of the Wuhan panic is that we now live in a culture that lives in fear of the flu, a disease that is merely a short sickness from which almost everyone recovers. Such a culture can only die, because it won’t have the courage to take any risks at all.
Hubble photographs Comet NEOWISE
Click for full image.
Using the Hubble Space Telescope, astronomers have obtained close-up images of Comet NEOWISE after it had survived its closest approach to the Sun. The photo to the right, cropped and reduced to post here, is one of Hubble’s two images.
Comets often break apart due to thermal and gravitational stresses at such close encounters, but Hubble’s view suggests that NEOWISE’s solid nucleus stayed intact. This heart of the comet is too small to be seen directly by Hubble. The ball of ice may be no more than 4.8 kilometres across. But the Hubble image does captures a portion of the vast cloud of gas and dust enveloping the nucleus, which measures about 18 000 kilometres across in this image.
Hubble’s observation also resolves a pair of jets from the nucleus shooting out in opposite directions. They emerge from the comet’s core as cones of dust and gas, and then are curved into broader fan-like structures by the rotation of the nucleus. Jets are the result of ice sublimating beneath the surface with the resulting dust/gas being squeezed out at high velocity.
Below the fold is a six-second movie made of Hubble’s two images, showing how the jets changed over a three hour time period on August 8th.
» Read more
Mars: On the floor of Valles Marineris
Click for full image.
Cool image time! The image to the right, rotated and cropped to post here, was taken by the high resolution camera on Mars Reconnaissance Orbiter (MRO) on May 14, 2020, and shows a very strange bright outcrop on the floor of Valles Marineris, the largest canyon on both Mars and in the entire solar system.
MRO has photographed this spot a few times since 2007. The first image was posted with a detailed caption by Colin Dundas of the U.S. Geological Survey’s Astrogeology Science Center in Arizona, who described the feature like so:
Most of the material is light and shows many small scarps or benches. In places these appear to indicate boundaries between layers, but they are often discontinuous. The light material is buried by a thin mantle of dark material in places; the dark material is from other rock layers—possibly those above the outcrop—and has fallen or been blown over the light rock.
Near the top of the outcrop, there is a distinctive layer that appears as a dark band at low resolution. At the full resolution of HiRISE, this appears to be a layer breaking up into angular boulders, indicating different rock properties than the underlying light rock. There does appear to be some light material above this layer, suggesting that the process that deposited the light material continued for some time.
Dundas also added that the lighter material is theorized to have “formed by a variety of processes. Proposed deposition mechanisms for light-toned sediments on Mars include those from rivers or lakes, volcanic ash or wind-blown sand or dust.”
Since this lighter colored outcrop has remained as bright as it has now for more than six Martian years, I doubt it is brighter because of the surface deposit of ash, sand, or dust (though it might be made of these materials which have now become hardened). My guess is that the brightness is inherent to the outcrop. Moreover, note the plateau to the southwest. Its rim is cut sharply, suggesting erosion revealed this outcrop, and that the outcrop is made of more resistant material.
The overview map provides some context that also might help explain the geology at this location.
» Read more
Russia to continue bilateral space negotiations with U.S.
According to one Russian foreign policy official, the Putin government will continue bilateral space negotiations with United States in connection with both its Artemis Accords (designed to encourage private ownership in space) and the military doctrines in space recently set forth by the U.S. Space Force.
The official also made note of a Russian-Chinese agreement related to the use of space, which seems to counter what the Trump administration is pushing with the Artemis Accords. However, the fact that these bilateral agreements and negotiations now exist actually gets the U.S. what it wants, foreign treaties that set out goals and rules that bypass the restrictions of the Outer Space Treaty. Those restrictions make private ownership in space legally questionable. That Russia is willing to continue negotiations with the U.S. means that it might agree eventually to some framework that allows private property in space, in order to remain a partner in the Trump administrations Artemis lunar project.
Blue Origin-led partnership delivers lunar lander mockup to NASA
Capitalism in space: The Blue Origin-led partnership, which calls itself “the National Team,” has delivered to the Johnson Space Center a full scale mock-up of the manned lunar lander it is building for NASA.
The full-sized, but low-fidelity, mockup includes both the descent element, developed by Blue Origin, and ascent element, built by Lockheed Martin, and stands more than 12 meters high.
The companies developed the mockup to allow NASA astronauts and engineers to study the layout of the vehicle, including positioning of various components, and get feedback while the lander is still in an early stage of development.
While providing this mock-up to NASA for design review makes sense, I must say that I yawned when I saw the string of overly excited new reports about it from almost every mainstream news outlet. It appears that though Jeff Bezos and Blue Origin have become very skilled at delivering nothing but mock-ups and promises over the past few years, both have also become very skilled at getting the press pumped up with each new mock-up and promise.
More and more does Bezos and Blue Origin remind me of Richard Branson and Virgin Galactic, making promises and holding spectacular fake press events, but actually achieving little. I could be wrong, but I can’t get that similarity out of my head. Blue Origin was founded in 2000, before SpaceX, and after more than twenty years it has yet to fly anything commercially. Work on its New Shepard reusable suborbital rocket has apparently stalled, without ever flying humans. Its main rocket engine, the BE-4, is taking years to develop, with only test versions built, none flightworthy. And New Glenn, its orbital rocket, remains a fantasy.
I truly hope my cynicism here is unfounded. I want Blue Origin to succeed. I just wish they’d finally do something.
Chinese company successfully completes 300 meter hop of first stage
The new colonial movement: The Chinese pseudo-company Linkspace has successfully completed a 300 meter hop of the first stage of its new rocket.
Video of the hop can be seen here. The photo to the right is a screen capture from that video showing the rocket being transported to the launch site. Based on this image, the stage appears small, no more than twenty feet tall. I suspect this is only a prototype, comparable in many ways with SpaceX’s Grasshopper, which was a prototype to test vertical landing.
This success however lays the groundwork for building a full scale model.
I call Linkspace a “pseudo-company” in that it might have raised independent investment capital and appears to work as a private company, in China and with rockets there is no such thing. Everything this company does is closely supervised by the government. There is no independence here.
UK spaceport in north Scotland approved
Capitalism in space: A commercial spaceport in Sutherland, Scotland, has received full approval from the local planning commission.
With planning permission now secured, construction is on course to begin before the end of the year, and HIE is hopeful that the site could be operational and supporting its first launch as early as 2022.
Their prime customer, a UK company dubbed Orbex Space, had said two years ago it would do its first launch by 2021, so this announcement also reveals a year delay in that first launch.
Lockheed Martin, teamed with Rocket Lab, has also said it will launch from this site.
The Mash Report – Northerner terrifies Londoners by saying “Hello”
An evening pause: Nice comedy piece, based on far more truth than it could possibly imagine, performed as it were in I think 2017.
Hat tip Tom Biggar.
Tests this weekend to pinpoint slow leak on ISS
The astronauts this weekend will shut all the hatches between different modules on ISS so that ground controllers can try to pinpoint the location of a long term slow air leak.
This leak was first spotted in September 2019, when there were “indications of a slight increase above the standard air leak rate,” NASA said in the statement. “Because of routine station operations like spacewalks and spacecraft arrivals and departures, it took time to gather enough data to characterize those measurements. That rate has slightly increased, so the teams are working a plan to isolate, identify and potentially repair the source.”
While the leak rate is higher than usual, it is still within specifications for the station and poses no immediate danger to the crew, NASA officials emphasized. Astronauts also deal with leak simulations during training for their stays on the space station, which typically are about six months long.
The weekend test will allow them to identify where the leak is located. They will then be better able to find it, and mitigate it.
Dying Democratic Cities
Saks Fifth Avenue in 2020 NYC.
Want to move to one of America’s big urban cities? Ever imagine having a penthouse apartment close to or even in downtown so that you could walk to the theater? Well, the options are endless, and the cost is plummeting. It’s a buyer’s market! Just take a look:
- New York: When Half of NYC’s Tax Base Leaves and Never Comes Back
- Chicago: Threat Of More Looting Leads To Concerns Of Downtown Chicago Exodus
- Portland: Multiple Portland companies to move out because of riots
- Seattle: Seattle Defunded Police. Now Businesses Are Leaving, and Rioters Still Aim Explosives at Cops
- San Francisco: Mass exodus: Twice as many homes for sale compared to last year as people flee city
None of these trends are new. American cities have been generally suffering since the end of World War II, though for the past few decades they have seen a partial renewal that did not bring them back to the halcyon days of the past but at least made them look vibrant and alive.
The last few months however have seen a perfect storm of circumstances that have led to a major crash, destroying all the gains made in the recent past.
» Read more
Musk: 100+ reuses of Falcon 9 1st stages possible
Capitalism in space: According to Elon Musk:, based on what SpaceX has learned so far in reusing the 1st stages of its Falcon 9 rocket, it is entirely possible that the present design could result a hundred or more reuses.
Now, with all that experience in hand and a Falcon 9 Block 5 booster already 60% of the way to the ten-flight reuse milestone, Musk says that “100+ flights are possible” and that “there isn’t an obvious limit.” While “some parts will need to be replaced or upgraded” to achieve dozens or hundreds of booster reuses, Musk says that SpaceX “almost never need[s] to replace a whole [Merlin 1D] engine.
Given that a Falcon 9 booster’s nine M1D engines are likely the most difficult part of each rocket to quickly and safely reuse, it’s extremely easy to believe that individual boosters can launch dozens – if not hundreds – of times with just a small amount of regular maintenance and repairs. In that sense, SpaceX has effectively achieved Musk’s long-lived dream of building a rocket that is (more or less, at least) approaching the reusability of aircraft.
The next step in this effort will be to shorten the turnaround times. At the moment the best time between any booster’s reflight has been just under two months. SpaceX has said they want to be able to refly boosters in just days.
August 18, 2020 Zimmerman/Batchelor podcast
Embedded below the fold in two parts.
» Read more
The Association – Cherish
An evening pause: Performed live 1979.
Hat tip Diane Zimmerman.
Movie of OSIRIS-REx’s last rehearsal before sample grab
Click image for full movie.
The OSIRIS-REx science team has released a movie made by the spacecraft’s navigation camera during its August 11th final rehearsal prior to the planned sample grab-and-go now set for October.
The image to the right is a capture of one image when the spacecraft was closest to the asteroid, about 131 feet above the surface. The target landing site, dubbed Nightingale, is the somewhat smooth area near the top half of the frame.
These images were captured over a three-hour period – the imaging sequence begins approximately one hour after the orbit departure maneuver and ends approximately two minutes after the back-away burn. In the middle of the sequence, the spacecraft slews, or rotates, so that NavCam 2 looks away from Bennu, toward space. Shortly after, it performs a final slew to point the camera (and the sampling arm) toward the surface again. Near the end of the sequence, site Nightingale comes into view at the top of the frame. The large, tall boulder situated on the crater’s rim (upper left) is 43 feet (13 meters) on its longest axis. The sequence was created using nearly 300 images taken by the spacecraft’s NavCam 2 camera.
Nightingale might be their best choice, but it remains about half the size they had originally wanted for their grab-and-go site, with far too many objects larger than planned. They designed the grab-and-go equipment to catch objects smaller than 0.8 inches. Little at this location, or on the entire surface of Bennu, is that small. The asteroid is truly a pile of gravel, with no dust.
Nauka finally arrives at launch site, thirteen years late
Russia’s Nauka module for ISS has finally arrived at its launch site at Baikonur, Kazakhstan, to be prepared for its launch, now scheduled for April 2021.
After its arrival and fitting-out, Nauka will become the primary laboratory module on the Russian segment. Currently, Russia has two small laboratory modules – Rassvet and Poisk – both of which will be dwarfed by Nauka. Additionally, Nauka will take the title of the heaviest Russian module on the Station, at 24.2 tons. Zvezda currently holds this honor, at 20.3 tons.
The module is thirteen years later than first planned and has been under construction for more than a quarter century.
Hope completes first course correction on trip to Mars
The new colonial movement: The United Arab Emirates’ (UAE) Mars Hope orbiter has successfully completed its first course correction on its journey to Mars.
The success of this maneuver is a big deal, as it appears it was controlled from the UAE’s control center by its engineers. Up to now this project has mostly been a joint U.S/UAE project, launched by Japan, with U.S. universities doing the heavy lifting while training UAE personnel. Now the UAE engineers are in charge, and so they have to get it right.
They have another half dozen course corrections scheduled before arrival in February 2021, when the spacecraft will have its big maneuver, entering Martian orbit.
Another SLS screw-up related to Europa Clipper
Despite being required for years by a legal congressional mandate to use SLS to launch Europa Clipper to the moon of Jupiter, NASA engineers have suddenly discovered unspecified “compatibility issues” that might make use of the rocket problematic.
At an Aug. 17 meeting of NASA’s Planetary Science Advisory Committee, Lori Glaze, director of NASA’s planetary science division, said the Europa Clipper mission had recently discovered compatibility issues involving the Space Launch System, the vehicle preferred by Congress to launch the spacecraft. “There have been some issues that have been uncovered just recently,” she said of the use of SLS for Europa Clipper. “We are in a lot of conversations right now with human exploration and others within the agency about what kind of steps we can take going forward.”
She did not elaborate on the compatibility issues regarding SLS. Such issues, industry sources say, likely involve the environment the spacecraft would experience during launch, such as vibrations. That environment would be very different for Europa Clipper, a relatively small spacecraft encapsulated within a payload fairing, than for the Orion spacecraft that will be the payload for most SLS launches.
“We are currently working to identify and resolve potential hardware compatibility issues and will have more information once a full analysis has been conducted,” NASA spokesperson Alana Johnson said in an Aug. 18 statement to SpaceNews. “Preliminary analysis suggests that launching Clipper may require special hardware adjustments, depending on the launch vehicle.”
This is a joke. It is also absurd and disgusting. Finally, it is also par for the course for NASA and all of today’s government, at all levels. They can’t do anything competently. From the beginning Europa Clipper was mandated to fly on SLS. And yet, they didn’t design the two to be compatible?
Based on this example we should of course demand that the government and these bureaucrats be given more power and more control over our lives. Of course.
Majestic dunes on Mars
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 Mars Reconnaissance Orbiter on May 10, 2020, and shows the dune field inside a large unnamed sixty-mile-wide crater in the highlands of Mars.
Scientists have been using MRO to monitor this site to track both dust devils and dune changes since at least 2009. In 2009 the focus was on the numerous dust devil tracks, and in fact I posted in March 2020 a comparison of an earlier image with a more recent picture, showing how the earlier tracks had vanished in recent pictures, probably wiped clean by the global dust storm in 2018.
This time however I am less interested in the science, which I covered in detail in that previous post, but in the beauty of these dunes. They are large and majestic, and the color strip tells us that they exhibit striking colors of green, gold, and tan. Is there a place on Earth with dunes of such colors? If so, it is rare.
Make sure you click on the image to see the full resolution photograph. It is even more breath-taking.
Tiny asteroid sets record for closest fly-by of Earth
Astronomers using the robotic Zwicky Transient Facility (ZTF) at the Palomar Observatory in California on August 16 spotted a tiny asteroid just after it had zipped past the Earth at a distance of only 1,830 miles, the closest any asteroid has ever been seen to do so without hitting the ground.
Asteroid 2020 QG is about 10 to 20 feet (3 to 6 meters) across, or roughly the size of an SUV, so it was not big enough to do any damage even if it had been pointed at Earth; instead, it would have burned up in our planet’s atmosphere.
“The asteroid flew close enough to Earth that Earth’s gravity significantly changed its orbit,” says ZTF co-investigator Tom Prince, the Ira S. Bowen Professor of Physics at Caltech and a senior research scientist at JPL, which Caltech manages for NASA. Asteroids of this size that fly roughly as close to Earth as 2020 QG do occur about once a year or less, but many of them are never detected.
The ability to spot these things is continuing to improve, though it does not appear they have yet obtained enough information to predict 2020 QG’s full orbit, or when or if it will return.