Please consider supporting my work here at Behind the Black., You can support me either by giving a one-time contribution or a regular subscription. There are four ways of doing so:


1. Zelle: This is the only internet method that charges no fees. All you have to do is use the Zelle link at your internet bank and give my name and email address (zimmerman at nasw dot org). What you donate is what I get.


2. Patreon: Go to my website there and pick one of five monthly subscription amounts, or by making a one-time donation.


3. A Paypal Donation or subscription:


4. Donate by check, payable to Robert Zimmerman and mailed to:


Behind The Black
c/o Robert Zimmerman
P.O.Box 1262
Cortaro, AZ 85652


You can also support me by buying one of my books, as noted in the boxes interspersed throughout the webpage or shown in the menu above.

The view of Jezero Crater, from both Ingenuity and Perseverance

1:10 pm

The view from Ingenuity during 10th flight
Click for full image.

Cool image time! Today the Perseverance science team released the 200 images that Ingeniuty took during its 10th flight on July 24, 2021.

The photo to the right was taken about 25 seconds before the helicopter landed, and looks to the southwest. In the foreground can be seen the ridge of rocks and pebbles that the scientists sent Ingeniuty to photograph. In the distance can be seen the rim of Jezero Crater, about 7.5 miles away, with some rounded hills that sit in the crater floor about 5.5 miles away.

The white box indicates the area covered by two high resolution images taken by Perseverance on July 28th that I have combined into the panorama below.
» Read more

15 comments

Atomic oxygen in Mars’ atmosphere, as seen by Al-Amal

12:06 pm

Oxygen distribution on Mars

The UAE’s Al-Amal Mars orbiter on July 19, 2021 released a new spectroscopic image, showing the global distribution of atomic oxygen in the Martian upper atmosphere.

The Emirates Ultraviolet Spectrometer (EMUS) mapped the distribution of atomic oxygen in the planet’s upper atmosphere, showing a dense patch emerging from the nightside into the new day.

The photo to the right, cropped and reduced to post here, shows this.

Over the next two years, covering one single Martian year, Al-Amal will monitor the distribution of this oxygen to see how it fluctuations from season to season, as well as from day to day. Gather this information will help the theorists untangle the past atmospheric history of Mars.

3 comments

Genesis cover

On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.

 

The print edition can be purchased at Amazon, any other book seller, or direct from my ebook publisher, ebookit. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.


The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
 

"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News

Today’s blacklisted American: Democrat endorses racial discrimination and press censorship aimed at whites

11:36 am

Discriminated against by Chicago Democrats
Eagerly discriminated against by Democrats

Blacklists and segregation are back and the Democrats have got ’em: Lori Lightfoot, the Democratic Party mayor of Chicago, recently and enthusiastically defended her past racial disciminatory policy of refusing to give any one-on-one interviews to white reporters, saying she intends to do it again.

Chicago Mayor Lori Lightfoot said she would “absolutely” grant interviews only to journalists of color again after she drew waves of backlash earlier in the year when she announced the policy.

“I would absolutely do it again. I’m unapologetic about it because it spurred a very important conversation, a conversation that needed to happen, that should have happened a long time ago,” the Democrat said on a segment of the New York Times’s podcast Sway, released on Monday.

“Here is the bottom line for me: To state the obvious, I’m a black woman mayor,” she said. “I’m the mayor of the third-largest city in the country. Obviously, I have a platform, and it’s important to me to advocate on things that I believe are important. Going back to why I ran — to disrupt the status quo. The media is critically important to our democracy. … The media is in a time of incredible upheaval and disruption, but our City Hall press corps looks like it’s 1950 or 1970.”

» Read more

7 comments

For the first time astronomers measure the rotation of exoplanets

10:10 am

The uncertainty of science: Using the Keck Telescope in Hawaii astronomers for the first time have measured the rotation of several exoplanets orbiting the star HR8799, about 129 light years away.

Using the state-of-the-art Keck Planet Imager and Characterizer (KPIC) on the Keck II telescope atop Hawaiʻi Island’s Maunakea, astronomers found that the minimum rotation speeds of HR 8799 planets d and e clocked in at 10.1 km/s and 15 km/s, respectively. This translates to a length of day that could be as short as three hours or could be up to 24 hours such as on Earth depending on the axial tilts of the HR 8799 planets, which are currently undetermined. For context, one day on Jupiter lasts nearly 10 hours; its rotation speed is about 12.7 km/s.

As for the other two planets, the team was able to constrain the spin of HR 8799 c to an upper limit of less than 14 km/s; planet b’s rotation measurement was inconclusive.

These results are somewhat uncertain, as are any conclusions theorists try to draw from them. Even if confirmed, the sample is so small it doesn’t tell us anything yet about overall trends in planet formation or the expected spin rate of planets as they form.

Nonetheless, the detection appears valid and thus a scientific triumph. Astronomers have been telling me for years that figuring out ways to find out more about exoplanets is going to become the next hot subject in astronomy. This result illustrates this.

One comment

Conscious Choice cover

Now available in hardback and paperback as well as ebook!

 

From the press release: In this ground-breaking new history of early America, historian Robert Zimmerman not only exposes the lie behind The New York Times 1619 Project that falsely claims slavery is central to the history of the United States, he also provides profound lessons about the nature of human societies, lessons important for Americans today as well as for all future settlers on Mars and elsewhere in space.

 
Conscious Choice: The origins of slavery in America and why it matters today and for our future in outer space, is a riveting page-turning story that documents how slavery slowly became pervasive in the southern British colonies of North America, colonies founded by a people and culture that not only did not allow slavery but in every way were hostile to the practice.  
Conscious Choice does more however. In telling the tragic history of the Virginia colony and the rise of slavery there, Zimmerman lays out the proper path for creating healthy societies in places like the Moon and Mars.

 

“Zimmerman’s ground-breaking history provides every future generation the basic framework for establishing new societies on other worlds. We would be wise to heed what he says.” —Robert Zubrin, founder of the Mars Society.

 

All editions are available at Amazon, Barnes & Noble, and all book vendors, with the ebook priced at $5.99 before discount. All editions can also be purchased direct from the ebook publisher, ebookit, in which case you don't support the big tech companies and the author gets a bigger cut much sooner.

 

Autographed printed copies are also available at discount directly from the author (hardback $29.95; paperback $14.95; Shipping cost for either: $6.00). Just send an email to zimmerman @ nasw dot org.

Scientists: Clay, not liquid water, explains radar data under Martian south icecap

9:57 am

The uncertainty of science: In a new paper scientists claim that clay materials, not liquid water, better explain the radar data obtained by orbital satellites, initially hypothesized to be liquid water lakes under Mars’ south polar icecap.

Sub-glacial lakes were first reported in 2018 and caused a big stir because of the potential for habitability on Mars. Astrobiologists and non-scientists were equally attracted to the exciting news. Now, the solution to this question, with great import to the planetary science community, may be much more mundane than bodies of water on Mars.

The strength of this new study is the diversity of techniques employed. “Our study combined theoretical modeling with laboratory measurements and remote sensing observations from The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) instrument on NASA’s Mars Reconnaissance Orbiter. All three agreed that smectites can make the reflections and that smectites are present at the south pole of Mars. It’s the trifecta: measure the material properties, show that the material properties can explain the observation, and demonstrate that the materials are present at the site of the observation,” Smith said.

This paper is only one of several recently that has popped the balloon on the liquid lake theory. Nothing is actually proven, but the weight of evidence is definitely moving away from underground liquid water under the south pole icecap.

One comment

India officially delays launch of its next lunar rover to ’22

9:47 am

The new colonial movement: India has now officially delayed the launch of its next lunar rover, Chandrayaan-3, to the third quarter of 2022.

Chandrayaan-3 was planned to demonstrate India’s capability of soft landing on a celestial body, with the rover then communicating with Earth via the existing orbiter from Chandrayaan-2. The orbiter has an estimated lifespan of seven years. The third mission was announced months after the Vikram lander aboard Chandrayaan-2 crash-landed on the lunar surface just 2.1 km from its destination in September 2019. Chandrayaan- 3 was initially scheduled for late 2020 or early 2021, but the disruption caused by the pandemic affected the schedule.

The Wuhan flu panic has essentially shut down India’s entire space program for more than a year. Not only has the country only done one launch so far in 2021, far less than expected, it has also had to delay its manned space program by a year, as well as the launch of its own new smallsat rocket.

The delay in launches, including that smallsat rocket, is likely losing India customers in the commercial market, especially because the private rocket companies in the U.S. have continued to launch with almost no delays. If India doesn’t get off the ground soon its rocket industry will be seriously damaged in a way that might take years to recover.

Leave a comment

Leaving Earth cover

Leaving Earth: Space Stations, Rival Superpowers, and the Quest for Interplanetary Travel, can be purchased as an ebook everywhere for only $3.99 (before discount) at amazon, Barnes & Noble, all ebook vendors, or direct from my ebook publisher, ebookit.

 

If you buy it from ebookit you don't support the big oppressive tech companies and I get a bigger cut much sooner.

 

Winner of the 2003 Eugene M. Emme Award of the American Astronautical Society.

 
"Leaving Earth is one of the best and certainly the most comprehensive summary of our drive into space that I have ever read. It will be invaluable to future scholars because it will tell them how the next chapter of human history opened." -- Arthur C. Clarke

China’s Long March 2D rocket launches earth observation satellite

9:39 am

China today successfully used its Long March 2D rocket to launch an earth observation satellite into orbit.

The launch was from one of China’s interior spaceports, so the expendable first stage and fairings landed within China. No word on whether they landed uncontrolled or used the parachutes or grid fins to control the landing.

The leaders in the 2021 launch race:

24 China
20 SpaceX
12 Russia
3 Northrop Grumman
3 Rocket Lab

The U.S. still leads China 30 to 24 in the national rankings.

Leave a comment

Nauka finally docks with ISS

9:21 am

ISS configuration with Nauka added
The configuration of the Russian portion of ISS with
Nauka and the as-yet launched docking hub.

This morning the new fullsize module to ISS, Nauka, finally docked with the station, ending a week of tension because of issues with its engines.

The docking was not without issue, with Russian cosmonauts noting that Nauka wasn’t on the correct course less than an hour before docking; however, a retro burn quickly corrected the issue. After also troubleshooting an issue with the TORU manual docking system, Nauka successfully docked in automated fashion to the Zvezda service module’s nadir port at 09:29 EDT / 13:29 UTC, marking the first major expansion to the Russian segment for over 20 years.

They will now begin a series of eleven spacewalks to outfit the module. This includes installing a new European-built robot arm and transferring an airlock and radiator on a different module that were originally built to be attached to Nauka and have been waiting eleven years for its much delayed arrival.

In November Russia will then launch a small docking hub module that will dock with Nauka and provide the docking ports that were lost when the Piers module was detached earlier this week (thus allowing Nauka to dock). This new docking hub is also critical, because it will allow Russia to limit dockings to the aft port on Zvezda, which has serious structural stress issues and must be treated gently to prevent further hull cracks and air leaks.

5 comments

Rocket Lab returns to flight, launching an American military test satellite

11:53 pm

Capitalism in space: Rocket Lab tonight (July 29th in New Zealand) successfully launched its Electron rocket to place an American military technology test satellite into orbit.

This was the company’s first launch since a launch failure in May. Though the company has previously fished two first stage boosters out of the ocean as they test the engineering to allow the recover and reuse of those first stages, on this flight they made no such attempt.

The leaders in the 2021 launch race:

23 China
20 SpaceX
12 Russia
3 Northrop Grumman
3 Rocket Lab

The U.S. now leads China 30 to 23 in the national ranks. Last year the U.S. launched 40 times total. With the year seven months old, the U.S. has already reached three quarters of that number, suggesting that there is an outside chance that this year it could break its record of launches in a year, 70 in 1966. At the least the U.S. looks like it will achieve comparable launch numbers that were typical in the mid-1960s, at the dawn of the space age when NASA and the military were launching a lot to figure out the best way to do things.

Now the launches are privately owned, and exist because everyone is making money doing it. Assuming the world doesn’t get hit with a real disaster (instead of last year’s fake Wuhan flu panic), expect these numbers to continue to rise in the coming years.

11 comments

Glen Campbell – William Tell Overture

6:01 pm

An evening pause: “Hi-Yo, Silver! Away!”

Hat tip Mike Nelson.

Note: I am in need of new evening pause suggestions. If you wish to suggest something that you think the readers here will like, mention that you have something to suggest in a comment but don’t, I repeat, don’t say what the suggestion is. I will contact you directly to get it, also providing you the guidelines for offering more suggestions.

One comment

The nearest hill to China’s Zhurong

3:45 pm

Pitted cone near Zhurong
Click for full image.

Cool image time! The science team for the high resolution camera on Mars Reconnaissance Orbiter (MRO) today released a pair of images the camera took on June 28, 2021 of the nearest pitted cone to China’s Zhurong rover.

The stereo anaglyph to the right, cropped and reduced to post here, allows you, with blue-red 3D glasses, to see the cone in three dimensions. Quite impressive. As noted by Alfred McEwen of the Lunar & Planetary Laboratory in Arizona in his caption,

This image completed a stereo pair of a region just west of where the Zhurong rover landed in southern Utopia Planitia.

The cutout is from a portion of the stereo anaglyph, showing an enigmatic pitted cone. Is this cone composed of sediments or volcanic materials? The sharp bright features surrounding the cone are aeolian (wind-blown) landforms.

According to McEwan, the hill itself is about 200 to 220 feet high, with the pit at its top about 60-65 feet deep.

While McEwan has told me this cone would be his primary target if he was running Zhurong, it appears the Chinese are instead heading south toward the largest nearby crater, and on the way inspecting the parachute, fairing, and heat shield discarded just prior to landing.

The mosaic below from three MRO context camera images provides a wider overview.
» Read more

4 comments

Today’s blacklisted American: Twitter bans all election audit accounts in Arizona, Georgia, Pennsylvania, Nevada, and Wisconsin

12:48 pm

Liberty and freedom banned
Twitter’s goal: Only Democrats can have freedom of speech.
Photo credit: William Zhang

The new dark age of silencing: In a single purge Twitter yesterday banned all the accounts of all election audits going on in Arizona, Georgia, Pennsylvania, Nevada, and Wisconsin.

Earlier today Twitter permanently suspended all nine of the official ‘Audit War Room’ accounts from it’s platform. The accounts were a main source for breaking updates and were banned as part of big tech’s continued attempt to shield the public from the stunning revelations being found regarding the fraudulent 2020 election.

Unsurprisingly, Twitter provided no reason for the suspensions. [emphasis mine]

Note the highlighted sentence. Twitter is no longer even pretending that it is banning these accounts because of some vague “community standard” that each violated. No, Twitter banned them simply because it is possible that the election audits going on in these states might actually uncover evidence of election fraud, and to allow honest and real news reporting can no longer be allowed, if that reporting might threaten the dominant leftist agenda and the Democratic Party politicians who are imposing it.
» Read more

11 comments

July 27, 2021 Zimmerman Space Show podcast

10:12 am

The podcast of my two-hour appearance last night on The Space Show with David Livingston is now available here.

Thank you to David and tor everyone who called or emailed questions. Twas a very good show, to my mind. It also allowed me hone my verbal description of my new book, Conscious Choice. When I finish a book, I tend initially to get buried in the details in describing it in interviews. This appearance allowed me to get an idea on how to talk about the book quickly, in summary. I think it went well, and will certainly get better with future appearances.

2 comments

Blue Origin working to make 2nd stage of New Glenn reusable

8:53 am

Capitalism in space: According to this Ars Technica article by Eric Berger yesterday, Blue Origin has begun working on a project dubbed Jarvis, focused on making the upper stage of its orbital and as yet unlaunched New Glenn rocket reusable.

Bezos had been asking his senior staffers about reusable upper stages, but advisers told him such an approach was unlikely to work, sources said. Bezos also seems to have been told the SpaceX “fail forward” method of rapidly prototyping and testing Starships, with few processes and procedures, would be unlikely to succeed.

However, over the last year, Bezos took note as SpaceX launched and landed its Starship vehicle. This is one of the reasons he decided to initiate a project named “Jarvis” at Blue Origin within the reusable second-stage program. Sources said Bezos has walled off parts of the second-stage development program from the rest of Blue Origin and told its leaders to innovate in an environment unfettered by rigorous management and paperwork processes. [emphasis mine]

The highlighted sentences indicate evidence that the management that Bezos brought in to run Blue Origin for him in 2017 was definitely old school big space managers, with limited vision and timid about risk-taking, and that Bezos is beginning to recognize this and shift control of the company away from them.

This is excellent news, and suggests that we shall finally see some real progress at Blue Origin, something that has been lacking for the past four years. It also suggests that Bezos now recognizes he needs to make his rocket competitive with what SpaceX has, and is taking steps to make that happen

Isn’t competition and freedom wondeful? When allowed to flourish it makes things happen fast, and with amazing daring.

11 comments

German startup rocket company raises $75 million

8:41 am

Capitalism in space: The German startup rocket company Isar Aerospace announced today that it has raised $75 million, bringing the total in private investment capital it has obtained to $180 million.

The initial funding had funded construction of their Spectrum smallsat rocket. This new funding the company says will be used to expand their manufacturing and to begin work on making their rocket reusable.

Spectrum, the rocket Isar is developing, is a two-stage vehicle designed to place up to 1,000 kilograms into low Earth orbit. The vehicle is powered by Aquila engines that the company is also building.

Guillen said the company is preparing to start tests of the full Aquila engine soon on a test stand in Kiruna, Sweden. Isar is also working on a launch site in Norway, having signed an agreement in April with Andøya Space for exclusive use of a pad at a new site under development by the state-owned launch site operator.

A first launch of Spectrum from Andøya is expected in the second half of 2022, she said. The company expects to conduct three to four launches in 2023, with a long-term goal of about 10 launches per year. While Andøya is well-suited for launches to sun-synchronous orbits, Isar is considering alternative launch sites, such as French Guiana, for missions to lower inclination orbits.

Isar is one of three German smallstat rocket company startups, and appears from all accounts to be ahead of the other two, Rocket Factory Augsburg and HyImpulse Technologies, in funding and development.

There is some long term historical context to these German rocket companies. Following World War II, Germany was forbidden to build such things, both legally and culturally, as rockets too closely resemble the V2 rocket used by Hitler to bomb Great Britain. Even when Germany joined the European Space Agency as a partner the rocket building was left mostly to the French and the Italians.

This has now changed, partly because the rockets are small, partly because Europe has been shifting to the capitalism model in its space industry, partly because the memories from World War II have faded, and partly because ESA’s subsized effort at Arianespace to build a new low-cost replacement for its Ariane 5 rocket has not been successful. The Ariane 6 costs too much, and is thus not garnering customers from within ESA.

I think it will be really great to start listing separate European private companies in my launch race updates. Doing so will only emphasize the global acceleration of the competition to get into space.

8 comments

The Music Man – Till There Was You

6:00 pm

An evening pause: Sung by Shirley Jones, from one of the greatest American musical films ever made, The Music Man (1962).

Diane and I have been watching a lot of those ’40s, 50s, and 60s American musicals. To today’s bitter and cynical youth, these films might seem to portray a too-perfect world filled with too much happiness and wealth. And while there is some truth to that cynical view, it is mostly wrong. The America portrayed in these films was actually quite like this. People were free, they were generally happy, and they lived a life of prosperity that no one before had ever seen. Nor are future generations likely to see such a life again during the coming dark centuries. These musicals provide a window into that time.

These musicals as well as most of the Hollywood movies prior to the 1960s are also quite unique in the history of literature and art in that they told stories not of kings or rulers or nobility, but of ordinary people. Such stories were rarely told before the coming of America. This fact also tells us much about the culture that then existed. It was ruled by those ordinary people, and thus the art and literature catered to them.

Which is why the Marxist power-driven culture that now dominates this country is desperate to ban the viewing of such art and the learning of that history. It tells a tale they cannot stomach.

20 comments

Fractured crater close to the Phoenix lander on Mars

2:37 pm

Fractured crater on Mars
Click for full image.

Cool image time! The photo to the right, cropped to post here, was taken on May 3, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows a remarkably fractured crater that lies only a few miles to the southeast of where the now-inactive Phoenix lander put down back in 2008, at the very high latitude of 69 degrees north.

Phoenix was purposely sent to this high latitude to find out what the ground and atmosphere was like there. It found the following:

Phoenix’s preliminary science accomplishments advance the goal of studying whether the Martian arctic environment has ever been favorable for microbes. Additional findings include documenting a mildly alkaline soil environment unlike any found by earlier Mars missions; finding small concentrations of salts that could be nutrients for life; discovering perchlorate salt, which has implications for ice and soil properties; and finding calcium carbonate, a marker of effects of liquid water.

Phoenix findings also support the goal of learning the history of water on Mars. These findings include excavating soil above the ice table, revealing at least two distinct types of ice deposits; observing snow descending from clouds; providing a mission-long weather record, with data on temperature, pressure, humidity and wind; observations of haze, clouds, frost and whirlwinds; and coordinating with NASA’s Mars Reconnaissance Orbiter to perform simultaneous ground and orbital observations of Martian weather.

Below is an overview map showing the location of both this crater and the Phoenix lander.
» Read more

Leave a comment

Today’s blacklisted American: Tenured professor fired, given no due process, because one student didn’t like what he was doing

11:46 am

The Bill of Rights cancelled at Berea College
No first amendment allowed at Berea College!

Persecution is now cool! The administration at Berea College, a Christian university in Kentucky, fired tenured professor Dave Porter because one student complained about a research survey he was conducting.

Porter’s offense was to have done a survey of attitudes on campus. One student claimed that the survey was a retaliation against her for having filed a Title IX complaint. Writes Porter, “The campus was quickly polarized, and the administration saw a crisis looming. Apparently, the dean had received information from a former student that current students were fearful of attending my classes. There was no investigation and suggestions of mediation or compromise were squelched by the dean’s claim that I was ‘unrepentant and unapologetic.’” [emphasis mine]

More details in this essay Porter himself wrote:
» Read more

12 comments

FCC tightens rules for giving grants to broadband companies

8:51 am

The FCC under the Biden administration has informed the companies who obtained subsidies to encourage broadband access in rural areas that the money can only be spent in those areas, not on infrastructure improvements in facilities located in regions that already have good internet access.

The Federal Communications Commission told SpaceX and other companies on Monday that the billions in rural broadband subsidies it doled out last year can’t be used in already connected areas like “parking lots and well-served urban areas,” citing complaints. The commission, in an effort to “clean up” its subsidy auction program, offered the companies a chance to rescind their funding requests from areas that already have service.

The companies that got the subsidies must do the work to determine they qualify for the money, wrote Michael Janson, director of the FCC’s Rural Broadband Task Force, in a letter addressed to SpaceX’s finance director David Finlay. Similar letters, first reported by Bloomberg, were sent to other recipients of the commission’s Rural Digital Opportunity Fund, a $9.2 billion auction to expand broadband into rural areas that lack or have no service.

The news reports I’ve seen of this story have all been from the generally leftwing press, and have been written to hammer SpaceX. No matter. This program is rife with corruption and the misuse of taxpayer money. SpaceX doesn’t need the nearly billion dollar subsidy it got, or if it does need the billion, it should get it from private investment. As should all the other companies getting cash in this program.

Sadly, the Biden administration does not appear interested in ending the program. Instead, I get the sense what it really wants to do is send the cash to its own cronies, instead of the cronies favored by the Trump adminstration. Thus, do not be surprised if Blue Origin’s as-yet unbuilt Kuiper constellation starts to be a recipient of funds, even as the money is cut from SpaceX’s Starlink constellation.

3 comments

An astrophysicist explains cosmology’s theoretical failures

8:37 am

Link here. The astrophysicist, Paul Sutter, does a very nice job of outlining the conundrum that has been causing astrophysicists to tear their hair out for the past decade-plus.

In the two decades since astronomers discovered dark energy, we’ve come upon a little hitch: Measurements of the expansion rate of the universe (and so its age) from both the CMB [cosmic microwave background] and supernovas have gotten ever more precise, but they’re starting to disagree. We’re not talking much; the two methods are separated by only 10 million or 20 million years in estimating the 13.77-billion-year history of the universe. But we’re operating at such a level of precision that it’s worth talking about.

If anything, this failure for two measurements of data spanning billions of light years — which is billions in both time and space — is a perfect illustration of the uncertainty of science. Astrophysicists are trying to come up with answers based on data that is quite thin, with many gaps in knowledge, and carries with it many assumptions. It therefore is actually surprising that these two numbers agree as well as they do.

Sutter, being in the CMB camp, puts most of the blame for this failure on the uncertainty of what we know about supernovae. He could very well be right. The assumptions about supernovae used to measure the expansion rate of the universe are many. There is also a lot of gaps in our knowledge, including a full understanding of the process that produces supernovae.

Sutter however I think puts too much faith in theoretical conclusions of the astrophysics community that have determined the age of the universe based on the CMB. The uncertainties here are as great. Good scientists should remain skeptical of this as well. Our knowledge of physics is still incomplete. Physicists really don’t know all the answers, yet.

In the end, Sutter however does pin down the biggest problem in cosmology:

The “crisis” is a good excuse to keep writing papers, because we’ve been stumped by dark energy for over two decades, with a lot of work and not much understanding. In a sense, many cosmologists want to keep the crisis going, because as long as it exists, they have something to talk about other than counting down the years to the next big mission.

In other words, the discussion now is sometimes less about science and theories and cosmology, but instead about funding and career promotion. What a shock!

11 comments

Bezos offers to waive $2 billion in payments to get lunar lander contract

5:57 pm

In an open letter to NASA administrator Bill Nelson, Blue Origin founder Jeff Bezos offered to waive $2 billion in payments should NASA decide to switch its contract for building the manned lunar lander contract from SpaceX to the Blue Origin team, including Lockheed Martin, Northrop Grumman and Draper.

Blue Origin and its industry partners ⁠— including Lockheed Martin, Northrop Grumman and Draper ⁠— bid $6 billion to design and build a competing landing system. After SpaceX won the award, Blue Origin’s team and Dynetics, the third competitor for a NASA contract, filed protests with the Government Accountability Office. The GAO is due to rule on those protests by Aug. 4.

In his letter to Nelson, Bezos revisits the issues laid out in Blue Origin’s protest and complains that NASA “chose to confer a multi-year, multibillion-dollar head start to SpaceX” in the Human Landing System competition. He noted that NASA gave SpaceX a chance to revise its bid to fit NASA’s financial needs, and that Blue Origin wasn’t given a similar opportunity. “That was a mistake, it was unusual, and it was a missed opportunity,” Bezos wrote. “But it is not too late to remedy.”

Bezos then offered to waive all payments in the 2021-2023 fiscal years, up to $2 billion, “to get the program back on track right now.” He said that would be in addition to the $1 billion in corporate contributions that was previously pledged.

The article notes there may be some legal issues blocking such an offer. I also wonder what Blue Origins partners think about this. Has Bezos discussed it with them? Is he offering to cover their profits as well?

We must also be cognizant of one important detail: The Blue Origin team’s proposal lost the bid largely because was ranked below SpaceX’s for both financial and technical reaosns. Even more important, that team’s lander does yet not exist, even in prototype. No significant work has been done. And Blue Origin itself has so far failed to launch anything into orbit, with its orbital rocket New Glenn two years behind schedule. None of this inspires confidence.

SpaceX meanwhile has been test flying its Starship lander in repeated flight tests, demonstrating its capabilities.

Consider this bidding war from a custoner’s perspective. Blue Origin has yet to prove it can build what it promises. SpaceX is already doing so. And it bid less as well.

On August 4th the GAO will rule on the protests of both losers, Blue Origin and Dynetics. Anything can happen, but I strongly expect them to rule in favor of NASA and SpaceX.

And even if they do rule that the contract must be rebid, the bottom line remains: Blue Origin has got to stop trying to win its contracts in the courts, and finally start build the orbital spacecraft and rockets it has been promising for years. I have every faith it can be done. Bezos just has to get his company focused once again in doing so.

16 comments

Today’s blacklisted American: Mob tries to blacklist actress for shaking Trump’s hand

1:18 pm

Addison Rae must be banned for shaking Trump's hand
Stone her! She shook Trump’s hand!

Persecution is now cool! Addison Rae, an actress who IMDB calls TikTok’s second most popular and highest earning performer, was attacked by a mob on TikTok, YouTube, and Twitter for daring to shake hands with Donald Trump at a Las Vegas boxing event on July 11th.

As shown on a video at the link, “the two shook hands and she mentioned that she just “had to say hi” and that it was “so nice to meet you.”

How dare she?! The mob effort grew so loud that a Buzzfeed “news” reporter wrote a story expressly focused on determining if Rae was a Trump supporter, with the reporter stating:

[C]onsidering Rae has ignored questions about whether or not she is a Trump supporter, I decided to test her digital footprint and see for myself. So, I scrolled through all of her likes in 2016, when the Hillary Clinton v. Donald Trump election reached its peak, to see just how many of these accidental Twitter bugs I could find.

The reporter, Alexa Lisitza, discovered a variety of tweets in 2016 that suggested Rae actually might have had an open mind about Trump, and was not all-hate all-the-time, and might even have decided to vote for him. As the reporter concluded, “That’s it for 2016. Who knows what lies in the years spanning throughout the election, but do with this information what you will.” The implication of course is that Rae should be blacklisted for this blasphemy.

Nor was this Buzzfeed article unique. » Read more

10 comments

A hiker’s view from Mount Sharp

10:10 am

A hiker's view of Gale Crater, taken by Curiosity
Click for full image.

A quick cool image! The photo to the right, reduced to post here, was taken yesterday by Curiosity’s left navigation camera. It looks west across the floor of Gale Crater, at the base of a nearby butte.

The crater rim, as seen by the distant mountains, is about 25 miles away. The butte that towers above Curiosity is probably no more than 50 feet high.

Below is a panorama showing the full view to the west, with Navarro Mountain (the nearby 450-foot-high foothill at the base of Mount Sharp) on the left edge. Based on the rover’s planned route, it will travel to the right of the butte rather than climbing up onto the saddle on the left. This will take it to the western side of Navarro Mt, where it will eventually head south into the canyon Gediz Vallis.
» Read more

4 comments

1st water vapor in Ganymede’s atmosphere, detected using data from Hubble

9:06 am

Using Hubble data, astronomers have detected the first evidence of water vapor in the atmosphere of Jupiter’s largest moon, Ganymede.

Though larger than the blistering planet Mercury, the Jovian moon Ganymede is no place to go sunbathing. Located ½-billion miles from the Sun, the water ice on its surface is frozen solid in frigid temperatures as low as minus 300 degrees Fahrenheit. This makes the ice as hard as rock. Still, a rain of charged particles from the Sun is enough to turn the ice into water vapor at high noon on Ganymede.

This is the first time such evidence has been found, courtesy of the Hubble Space Telescope’s spectroscopic observations of aurora on Ganymede spanning two decades. The auroras are used to trace the presence of oxygen, which then is linked to the presence of water molecules sputtering off the surface. Ganymede has a deep ocean located an estimated 100 miles below the surface. That’s too deep for water vapor to be leaking out.

This detection has a margin of uncertainty, but it provides a baseline for the up close observations planned for Europe’s JUICE orbiter, set to launch in ’22 and arrive in Jupiter orbit in ’29. JUICE’s study focus will be the three Galilean moons that appear to have lots of ice, Ganymede, Calisto, and Europa.

Leave a comment

Russians detach Pirs module in anticipation of Nauka arrival to ISS

8:48 am

With the engine problems of Russia’s new ISS module Nauka apparently resolved sufficiently for its rendezvous and docking expected on on July 29th, Russian astronauts today undocked the 20-year-old Pirs module, which then used its engines so that it safely burned up over the Pacific Ocean.

The article provides a nice history of Pirs, which was originally intended for Russia’s Mir-2 station, never built after the fall of the Soviet Union.

Pirs, meaning “pier,” traces its origins back to the Mir-2 space station — which was itself a Soviet project that’s design began in 1976. Mir-2’s long and troubled history would eventually find it in the early 1990s where major design changes to launch its various modules via the Buran space shuttle were underway.

Following the collapse of the Soviet Union in December 1991, Mir-2 emerged the following year as a four-module station — including a Docking Module, which would become Pirs. In 1993, Mir-2 officially merged with the long-delayed NASA/European/Japanese/Canadian space station Freedom project to become the building blocks of the International Space Station.

The module, which provided the Russian half of ISS needed extra docking ports, was originally expected to be replaced after about five years with a larger module, but this was never built.

15 comments

Deleted

8:39 am

This post incorrectly reported a Chinese launch as occurring today when it had actually occurred (and was reported previously. I have therefore deleted it. Sorry about the error.

The leaders in the 2021 launch thus remain as follows:

23 China
20 SpaceX
12 Russia
3 Northrop Grumman

The U.S. still leads China 29 to 24 in the national rankings.

3 comments

Update on Ingenuity’s 10th flight and Perseverance’s first sample drilling

3:54 pm

Ingenuity landing at end of 10th flight

The news coming from the Perseverance and Ingeniuty science teams has been sparse this past weekend, even though Perseverance had begun drilling its first core sample that it will stored for pickup by a later unmanned robot, and Ingenuity had attempted its 10th and most challenging flight yet.

We do have images however, and the two to the right give us hints about what has happened.

First, the top picture on the right was taken by Ingenuity’s navigation camera just prior to landing. The camera looks straight down and is used by the helicopter to adjust its flight. The dark area is the helicopter’s shadow. Based on this picture and the four preceding images (taken over an eleven second period), it appears the helicopter was landing safely. No other images have yet been downloaded, nor has the Ingenuity team announced any results, so we do not yet know if the flight proceeded as planned.

UPDATE: The flight was a success, as per this JPL announcement:

With the #MarsHelicopter’s #flight success today, we crossed its 1-mile total distance flown to date. It targeted an area called “Raised Ridges,” named for its #geographic features. Flight 10 is #Ingenuity’s most complex flight profile yet, with 10 distinct waypoints and a new #record height of 40 feet (12 meters).

Drill and core sample in the ground

The second image, taken by Perseverance’s left navigation camera and cropped and reduced to post here, is more puzzling. It shows what appears to be the core sample still in the ground after drilling. While this could be entirely as planned, it seems very surprising. Most of what I can find online describing the operation for obtaining these samples implies that the robot arm would drill the hole, and then retract the sample immediately to place it in storage. Nothing suggests the arm would be retracted with the sample still in the ground.

I think however the odds of this picture revealing a problem are low. This JPL press release from February 2021 implies vaguely that the core sample will be released in this manner before retraction. After the core sample, with bit, is separated from the arm, the release suggests they will lift the arm away to inspect the drilling process, then return the arm to retract the core sample for storage. This does make some sense, though grabbing that sample again will be quite challenging.

If this was not supposed to happen as described, then there is a problem that must be resolved. I expect more details in the next day or so to clarify this situation.

5 comments
1 … 292 293 294 295 296 … 1,103