China launches two satellites with Long March 4B

China today launched two satellites thought to be for military reconnaissance, using its Long March 4B rocket.

The leaders in the 2021 launch race:

47 China
27 SpaceX
21 Russia
6 Europe (Arianespace)
5 ULA
5 Rocket Lab

China now leads the U.S. 47 to 45 in the national rankings. There have now been 122 successful launches in 2021, making it the seventh most active year in the history of space exploratoin.

Christmas Food Court Flash Mob – Hallelujah Chorus

An evening pause: Most claimed flash mob performances are not really what they claim, often well staged with lots of cameras and hardly a surprise to the surrounding innocent crowd. This one, performed during the Christmas season in 2010, appears quite genuine, building out of nowhere at an ordinary mall food court. Even the camera work appears to be mostly from phones, many of which I think the producers obtained from the onlookers after the fact.

And of course, the music of Handel using the words of the Bible cannot be beat.

Hat tip Chris McLaughlin.

Today’s blacklisted Americans: Whites and Asians at Washington & Lee U

The Civil Rights Act of 1964: repealed at Washington and Lee University in Virginia
The Civil Rights Act of 1964: repealed at
Washington and Lee University in Virginia

“Segregation today, segregation tomorrow, segregation forever!” A program to teach business practices to college students at Washington & Lee University in Virginia makes it very clear that whites and Asians are not welcome to apply, and will be shadow-banned should they do so.

The program is offered by the Williams Investment Society, or WIS, “a student organization that manages a portion of Washington and Lee University’s endowment in equity securities,” its website states.

“To promote equality of opportunity, the WIS has developed a successful diverse shadow program and we encourage you to apply if you self-identify with any of the following communities: Women, Black, Lantinx, Latin, Native American, LGBTQ+, Veterans, and Students with Disabilities,” the society states in advertising the program.

» Read more

Curiosity takes a close look at a Martian cliff

A cliff of Mars
Click for full resolution. Original images here and here.

Curiosity has now moved up and into Maria Gordon Notch, a gap in the mountains of Gale Crater that is about forty feet wide, with a 40-foot-high cliff on its western side and a 30 to 60 foot cliff on its eastern side.

The mosaic above, created from two navigation camera images, looks up at the top half of that western cliff. Note the many many layers, each one of which records some climate or volcanic event in Mars’ geological history. The Mars we see today took a long time and many events to become what it is. Such layers however have not been seen everywhere by Curiosity. Compare for example this layered cliff with the massive outcrop dubbed Siccar Point and looked at closely by the rover in October. In that outcrop the layers were either non-existent, or merged together during some subsequent geological process.

Note also the pond of sand/dust at the center-bottom, nestled in a hollow but sitting almost vertical. That the dust can maintain itself at such an angle illustrates Mars’ lighter gravity, about 39% of Earth’s, which in turn allows for a much steeper angle of repose. That lighter gravity also allows for some sections of rock to stick out more precariously than possible on Earth.

As Curiosity moves through the notch in the next few days, more such cool pictures will become available, and I shall post them.

India outlines new schedule for lunar and manned missions

According to press statements by India’s Minister for Science & Technology, Jitendra Singh, the schedule for that country’s next unmanned lunar lander/rover and its first manned missions have now been firmed up.

First, Singh announced that the lunar lander/rover, Chandrayaan-3, is now aiming for a launch to the Moon in the second quarter of ’22. The mission is essentially a rebuild of Chandrayaan-2, which got within a few hundred feet of the lunar surface before losing control and crashing in 2019. Chandrayaan-3 had initially been scheduled for launch in late 2020, but the COVID panic essentially shut down India’s entire space industry in both ’20 and ’21.

Second, Singh announced that India’s manned orbital Gaganyaan mission is now scheduled for launch in ’23.

Jitendra Singh said that the major missions like Test vehicle flight for the validation of Crew Escape System performance and the 1st uncrewed mission of Gaganyaan (G1) are scheduled during the beginning of the second half of 2022. This will be followed by a second uncrewed mission at the end of 2022 carrying “Vyommitra” a spacefaring human robot developed by ISRO and finally the first crewed Gaganyaan mission in 2023.

Like Chandrayaan-3, Gaganyaan was delayed significantly by the panic in India over COVID. It was originally scheduled for launch in December ’21, but the panic caused all work to stop for most of ’20 and ’21. During that time period India’s planned annual launch pace of 6 or more launches per year shrank to a mere three launches over two years, with little sign yet that ISRO is ready to resume launches.

Hopefully, these announcements are a signal that India will fully return to flight in ’22. Stay tuned.

Orbex begins construction of launch platform

Capitalism in space: Orbex announced today that it has awarded a contract to a Scottish company to begin the construction of the launch platform it will use with its smallsat Prime rocket.

Orbex has commissioned Motive Offshore Group, a leading Scottish company specialising in the design and manufacture of marine and lifting equipment, to fabricate and install the Launch Platform at a dedicated test site near Kinloss, close to the Orbex headquarters in Forres, Scotland.

The Launch Platform, known as Orbex LP1, is expected to be fully operational by early 2022. … The new Launch Platform will support the testing of Orbex´s Prime rocket, a micro-launcher designed to transport small satellites weighing around 150kg to low Earth orbit. Although actual launches of the Orbex Prime rocket will not take place at the Kinloss site, the Launch Platform will be fully capable of launching an orbital rocket, allowing for full ‘dress rehearsals’ of launch procedures.

This platform is likely similar to the very transportable launch platform used by Astra. The present plan is to do launches from Orbex’s launch facilities at the Sutherland spaceport in Scotland, presently under construction and the first such launch facility being built in the United Kingdom in more than a half century. If designed to be portable, however, Orbex will also be able to ship the Prime rocket to other launch locations, depending on the orbital requirements of each launch.

Stratolaunch wins military research contract

Capitalism in space: Stratolaunch announced today [pdf] that it has won research contract with the Missile Defense Agency to provide a testing capability to that agency’s program to develop hypersonic flight technology.

The Stratolaunch team is eagerly preparing to complete its next set of Roc carrier aircraft test flights. The team also continues to make tremendous strides in building its first two Talon-A test vehicles: TA-0 and TA-1. TA-1 will start its power-on testing by the end of year, keeping the company on track to begin hypersonic flight testing in 2022 and to deliver services to government and commercial customers in 2023. Launched from Stratolaunch’s Roc carrier aircraft, the Talon-A vehicles are rocket-powered, autonomous, reusable testbeds carrying customized payloads at speeds above Mach 5.

From this release it appears that the company is planning more flight tests of its giant Roc airplane while it begins the first ground tests of the test vehicles that Roc will take into the air, followed in ’22 with flight tests, followed next with operational test flights in ’23.

The company’s shift from using Roc as a first stage for orbital satellites to using it instead as a hypersonic test bed seems to be paying off. For years the company was unable to find any design for second stage rocket that made both technical or economic sense. Using Roc instead as a vehicle for launching a hypersonic test bed — the Talon — seems more practical, while also providing the military a relatively cheap capability for hypersonic testing that it had previously lacked.

NASA issues vague update on Lucy’s solar panel deployment issue.

Lucy solar panel graphic

NASA today released a very vague update describing the work of the Lucy engineering team in trying to work out a fix to the incomplete deployment of one of Lucy’s solar panels.

A project team completed an assessment Dec. 1 of the ongoing solar array issue, which did not appear to fully deploy as planned after launch in late October. Initial ground tests determined additional motor operations are required to increase the probability of the latching Lucy’s array in place as intended, and the team has recommended additional testing.

Spacecraft operations included discharging and charging the battery while pointed at Earth, moving the spacecraft to point to the Sun, operating the solar array motor with the launch day parameters, moving back to pointing at Earth, and then another battery discharge and recharge. The solar arrays charge the batteries, then the batteries are deliberately discharged, and the solar array circuits are used to recharge the batteries; performing these charging and discharging processes gives the team more information about the solar array circuits.

The team gathered information on two of the 10 gores – the individual solar array panel segments that make up the full array — that previously had no data. NASA now has data on all 10 gores confirming they are open, producing power as expected, and not stuck together. [emphasis mine]

Apparently they have been doing a variety of testing of the array to assess its precise condition. The highlighted words are the most important, as this data suggests that all ten fan sections, as shown in the graphic above, are partly open, and that an attempt to fully deploy the solar panel should work.

The Lucy team has apparently decided to approach this work very slowly and cautiously, that they have time to do so as Lucy continues its slow journey to Jupiter’s Trojan asteroids.

SpaceX launches NASA X-ray telescope

Capitalism in space: SpaceX early this morning successfully launched NASA’s Imaging X-ray Polarimetry Explorer (IXPE), a small X-ray telescope designed to black holes and neutron stars.

The first stage, making its fifth flight, successfully landed on a drone ship in the Atlantic.

This launch, SpaceX’s 28th for 2021, extends once again the company’s all time record for the most launches in a year by a private company.

The leaders in the 2021 launch race:

46 China
28 SpaceX
21 Russia
6 Europe (Arianespace)
5 ULA
5 Rocket Lab

China’s lead over the U.S, in the national rankings has now shrunk to 46 to 45. The launch was the 121st in 2021, making this year tied as the seventh most active year in the history of space, a ranking that is sure to go up before the end of the year.

Rocket Lab successfully launches two more BlackSky Earth observation satellites

Capitalism in space: Rocket Lab today successfully launched from its launchpad in New Zealand two more satellite for the Earth observation company BlackSky, completing the launch only 21 days after their previous launch, tying the company’s fastest turnaround.

This was Rocket Lab’s fifth launch in 2021, which the company states will be its last this year. At the start of the year it had predicted it would complete this number, so the company has at least matched its expectations for 2021, despite governmental hold-ups in both New Zealand and Wallops Island that slowed the launch pace.

The leaders in the 2021 launch:

46 China
27 SpaceX
21 Russia
6 Europe (Arianespace)
5 ULA
5 Rocket Lab

China’s lead over the U.S. in the national rankings is now 46 to 44. SpaceX has a scheduled launch later tonight, so the race between the two countries should continue to tighten.

This was also the 120th successful launch in 2021, the most in a single year since 1984, and making it the ninth most active year in the history of space exploration.

Strange eroded glacial flows in unnamed crater on Mars

Eroded glacial flows in unnamed crater on Mars
Click for full resolution image.

Cool image time! The photo to the right, rotated, cropped, and reduced to post here, was taken on November 1, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows a series of strange glacial-like flows coming off the western slopes of the central peak of a 40-mile-wide unnamed crater, located smack dab in what I call Mars’ glacier country, that 2,000 long mid-latitude strip where almost every image shows evidence of glaciers.

The cropped section to the right doesn’t really do these strange flows justice. Make sure you click on the image to see the full resolution version. There are numerous separate flows coming off that central peak. Each appears to show that as time passed, each flow traveled a shorter distance down the mountain, leaving a moraine behind at higher and higher points.

The overview map below provides the context.
» Read more

Today’s blacklisted American: Colorado Democrats move to blacklist all mascots and imagery honoring the American Indian

American Indian banned by Democrats
The American Indian, banned by Democrats

Blacklists are back and the Democrats have got ’em: After the Democrats controlling the state government in Colorado passed a bill banning the use of any mascot or imagery that makes any reference to any American Indian tribe or cultural icon, a Native American group immediately filed suit, claiming that the policy essentially discriminates against American Indians, banning them from the public sector in all ways.

Colorado Gov. Jared Polis [a Democrat], who is listed as a defendant in the lawsuit, in June signed Senate Bill 21-116 into law, which prohibits public schools from using “a name, symbol, or image that depicts or refers to an American Indian tribe, individual, custom, or tradition that is used as a mascot, nickname, logo, letter, or team name.” Schools with American Indian-themed mascots have until June 1, 2022 to cease use or face $25,000 fines each month for noncompliance, according to the law, which doesn’t apply if a school has an existing agreement with a federally recognized tribe.

The lawsuit, which was filed [in early November] in U.S. District Court by the Mountain States Legal Foundation, a conservative public-interest law firm, is brought by current and former Yuma High School students and the Native American Guardian’s Association (NAGA), a nonprofit that advocates for the recognition of Native American heritage.
» Read more

NASA upgrades software for monitoring potentially dangerous asteroids

NASA has installed a major upgrade to the software it uses for monitoring, tracking, and predicting the future orbits of potentially dangerous asteroids.

Sentry [the original software used for the past 20 years] was very effective at calculating orbital paths based on how an asteroid is affected by the gravitational pull of the Sun and planets, but there were a few factors that it couldn’t account for. In the long run, these uncertainties can snowball into many possible orbits that may or may not impact Earth.

The Yarkovsky effect, for instance, is where the Sun unevenly heats the surface of an asteroid as it spins, creating thermal forces between the “day” and “night” sides of the rock that can produce thrust. Other times, asteroids that swing past Earth very closely could be nudged into different orbits by the planet’s gravity, changing the paths of their eventual return.

The first Sentry system couldn’t incorporate either of these two factors, meaning that for special case asteroids like Bennu or Apophis, astronomers would have to manually analyze their orbits, which is a complex and time-consuming process.

But Sentry-II is designed to account for things like these. This latest version uses a different algorithm that models thousands of random points within the uncertainty space of an asteroid’s orbit, then figures out which ones have a chance of striking Earth in future. This, the team says, could help find scenarios that have very low probability of impact.

What this upgrade means is that as new asteroids are discovered the software will be able to very quickly calculate with better accuracy any potential impacts in the coming centuries. The results won’t be perfect, but less manual work will be necessary, meaning fewer dangerous asteroids will fall through the cracks.

Where Ingenuity and Perseverance presently sit in Jezero Crater

Perseverance and Ingenuity, December 8, 2021
Click for interactive map.

The map to the right, annotated to post here, shows the present location of the rover Perseverance (the red dot) in relation to the 17th flight of the helicopter Ingenuity (indicated by the green line and dot) that successfully occurred on December 5, 2021.

Perseverance has been very very very very slowly retreating south, following the same route it took to move into the rough sand dune region the scientists have dubbed Seitah. Based on their long term plans, the rover will retrace its path (the white dotted line) to its landing site, and then continue along the yellow dashed line to eventually reach the base of the delta, dubbed Three Forks, that in the distant past poured through a gap in the rim of Jezero Crater.

The helicopter meanwhile is also retracing its flights, heading north to the spot where Perseverance first placed it on the ground. Because of the seasonally thinner atmosphere, the helicopter’s flights during that return journey must be shorter, which is why the 17th flight only traveled halfway across Seitah. In crossing it the first time it had done so in one flight. Now it will take two.

During that 17th flight it appears that the topography between the rover and the helicopter’s landing site caused a loss of communications as the helicopter was landing.

The Ingenuity team believes the 13-foot (4-meter) height difference between the Perseverance rover and the top of Bras [an outcrop] contributed to the loss of communications when the helicopter descended toward the surface at the end of its flight.

That loss of communications apparently caused no problems, but it will likely mean that Ingenuity will do no more flights until Perseverance can get closer and better positioned.

Russia launches two tourists to ISS

Capitalism in space: Using its Soyuz-2 rocket and Soyuz capsule, Russia today successfully launched two tourists to ISS.

Onboard the Soyuz is Yusaku Maezawa, a Japanese billionaire known for starting online businesses Start Today and Zozo. In addition to his Soyuz mission, he has a circumlunar flight aboard SpaceX’s Starship—called “dearMoon”—booked for no earlier than 2023. Maezawa purchased both available seats on this flight of Soyuz. He [is] joined by Yozo Hirano—a media producer from Zozo—who will document the MS-20 mission. This flight will mark the first time two Japanese astronauts fly together, as well as the first flight of any Japanese space tourist.

The mission is commanded by experienced Russian cosmonaut Alexander Misurkin, on what is his third spaceflight. During the mission, he will stand ready to pilot the Soyuz in case the automated guidance software fails.

The Russians claim that this is their first tourist flight to ISS since 2009, but that makes believe the two filmmakers launched to ISS in October were not paying passengers. They might have been working on ISS, and not merely tourists, but they were not professional astronauts but paying customers.

This flight however is the first organized with Russia by the American company Space Adventures since 2009, ending that long gap caused almost entirely because all Soyuz seats since then had been bought by NASA to replace the shuttle. With manned Dragon flights available, the Russians and Space Adventures can sell tickets again.

The leaders in the 2021 launch race:

46 China
27 SpaceX
21 Russia
6 Europe (Arianespace)
5 ULA

China still leads the U.S. 46 to 43 in the national rankings. With SpaceX and Rocket Lab launches set for later tonight, these numbers should rise again.

Kickstarter campaign for video game based on Pioneer begins January 18, 2022!

The asteroid mining ship Dream Watcher docked on the Mars space station.
From Pioneer: The asteroid mining ship Dream Watcher docked
on the Mars space station Landville, c2183.

Back in January, 2021 I wrote an essay, Pioneers and the Future, touting the coming Kickstarter campaign for a digital game based on my science fiction book, Pioneer, that we then expected to start in only a few short weeks. As I concluded,

Very shortly a crowd-funding project will launch, based on my book Pioneer itself. An adventure video game using a graphic novel style has been under development for the past two years and will launch as a crowdfunding project in just a matter of weeks. Both illustrations in this essay come from that project. The producers will be offering some exclusive and limited rewards for supporters, both from themselves and from me personally, so keep an eye on Behind the Black for announcements. You will want to be the first through the door when this project launches.

Not surprisingly, a number of ongoing issues related to COVID as well as casting forced a delay in that campaign.

No more! On January 18, 2022, the Kickstarter campaign for this new video game, Pioneer 2140CC, based on my science fiction book Pioneer, will begin.

The webpage for the game and the campaign can be found at PioneerSpaceGame.com. The press release can be read here.

Tokyo, Japan – Enterstellar Studios is excited to announce that Pioneer 2140CC, a visual novel style, sci-fi space video game, will launch on Kickstarter January 18th, 2022. Pioneer 2140CC is based on the book Pioneer, written in 1983 by famed space historian, radio personality, and cave explorer Robert Zimmerman, who writes about space, science, and culture at his website Behind the Black. The Kickstarter campaign will run from January 18th until February 24th and offer unique physical and rare NFT (non-fungible token) rewards. A minimum funding goal is set at $73,000 USD

The press release outlines many of the game’s planned highlights, as well as the limited and exclusive rewards available for those who donate to the campaign.

The creator of the game, Aaron Jenkin, has worked with me tirelessly for the past four years developing the game so that it will not only be a great video game, it will also faithfully capture accurately Pioneer’s story, characters, ideas, and fast-paced action. I have been endlessly impressed with the quality of Aaron’s work, as well as the top-notch artists he had brought into the project from day one.

So, if you like video games as well as science fiction, this game is for you! Give it a look, and when January 18, 2022 rolls around please consider donating generously so that Aaron can make Pioneer 2140CC a reality!

Hubble resumes full science operations

Engineers have now successfully reactivated the Hubble Space Telescope’s second spectrograph, so that the telescope is now fully operational for the first time since it went into safe mode on October 25th.

NASA’s Hubble Space Telescope team recovered the Space Telescope Imaging Spectrograph on Monday, Dec. 6, and is now operating with all four active instruments collecting science. The team has still not detected any further synchronization message issues since monitoring began Nov. 1.

The team will continue work on developing and testing changes to instrument software that would allow them to conduct science operations even if they encounter several lost synchronization messages in the future. The first of these changes is scheduled to be installed on the Cosmic Origins Spectrograph in mid-December. The other instruments will receive similar updates in the coming months.

Essentially, they are modifying the telescope’s software so that it will not shut down should it “encounter several lost synchronization messages.” As the engineers have never fully explained this issue, I suspect this is a work-around to ignore an issue that in the past they would have taken more seriously. Now they are doing a cost-benefit analysis, and have decided that ignoring some of these messages is better than fixing them. It might even be impossible to do so.

Today’s blacklisted American: The American Heart Association censored by Twitter

Twitter: Home for censorship
Twitter: Home for censorship.

The new dark age of silencing: For Twitter, it doesn’t matter that the American Heart Association (AHA) is a respected medical organization. Nor does it matter that the AHA annually runs a conference where researchers present their research under rigorous rules that prevent shoddy work from being submitted.

No, all that matters to Twitter is that a paper happened to document the potential risks of the mRNA shots against COVID-19 to the cardiovascular systems of patients, risks that were significant and that should cause a serious reconsideration about the administration of these experimental drugs.

For Twitter, such research is unacceptable, and it must be banned!

Dr. Steven R. Gundry of the International Heart and Lung Institute wrote an abstract that raised a concern about mRNA vaccines for COVID-19 potentially raising the inflammatory markers in the blood. Gundry’s group has been conducting a long-term study of the risk for a new Acute Coronary Syndrome (ACS). Patients in the clinic have received a clinically validated measurement of multiple blood protein biomarkers called the PULS score every 3-6 months for eight years. The study began before the pandemic and has accumulated a significant history for participants. But Twitter decided the information that the group found is dangerous. [emphasis mine]

For Twitter, nothing negative can ever be said about the jab. It is godlike, perfect, and must be supported in all publications. For scientists to publish research with the American Heart Association that dares raise questions about the jab’s safety is verboten, and thus Twitter’s all wise moderators, all obviously trained as doctors and scientists, acted to censor such a report, as shown in the screenshot below.
» Read more

Curiosity moves into a mountain gap

Maria Gordon Notch
Click for full resolution version. Original images here and here.

Curiosity's location, December 6, 2021
Click for interactive map.

For the last three weeks the Curiosity science team has had the rover poking about at the base of the 40 foot cliff on the right of the panorama above. At that location many rocks and boulders had fallen from the top of the cliff, which gave them an opportunity to study the geology of the plateau above, even though it was literally beyond reach.

Beginning yesterday that work ended, and the science team finally made the commitment to move forward, into the gap above where the rover will turn right, climb up onto that plateau through a notch they have dubbed Maria Gordon Notch. The map to the right shows this coming route with the red dotted line.

Once in that notch Curiosity will truly be in the mountains of Gale Crater, even if those mountains are only the foothills to Mount Sharp.

It is interesting to contrast the roughness of the terrain that Curiosity is now routinely traveling, with the relatively benign ground that Perseverance is traversing on the floor of Jezero Crater. While Curiosity is pushing forward into steeper and rougher terrain, the Perseverance team is retreating from the somewhat mild sand dune ground of South Seitah, even though that ground is far less challenging than anything faced by Curiosity. You can see this retreat at the interactive map here. Zoom in and place your cursor over each waypoint. Rather than push forward, the Perseverance team seems willing to have the rover retreat and retrace its route around Seitah, even though to retrace those steps will likely take a few weeks, during which they will cover no new ground and will likely learn little new.

Why the Perseverance team seems so timid is puzzling. It could be they are still working out the kinks of their operation. It could be that they want to take no risks at all this early in their mission. And it could also be that the team culture at Perseverance is simply less daring than that of the Curiosity team.

Only time will answer this question. I suspect as the Perseverance mission unfolds its scientists will become more bold. We just need to give them time.

Astra’s next launch to be in Florida

According to statements by Astra and the Space Force, the startup’s next launch, its first operational mission intended to place payloads in orbit, will occur in Florida at Cape Canaveral.

Astra announced that it will conduct a launch of its Rocket 3.3 vehicle from Space Launch Complex 46 at Cape Canaveral Space Force Station in January. The pad, originally developed for tests of the Trident submarine-launched ballistic missile, is now operated by Space Florida. It has been used for launches of Athena rockets and, in 2019, a test of the launch abort system for NASA’s Orion spacecraft.

..Astra said in the statement that it will carry a payload for NASA on that flight but did not disclose additional details. A company spokesperson said this launch will be for NASA’s Venture Class Launch Services (VCLS) program, under a VCLS Demo 2 contract the company won a year ago.

That launch, designated ELaNa 41 by NASA, will carry five cubesats, according to a NASA manifest. Four of the cubesats are from universities: BAMA-1 from the University of Alabama, CURIE and QubeSat from the University of California Berkeley and INCA from New Mexico State University. The fifth, R5-S1, is from NASA’s Johnson Space Center.

No specific date for the launch has as yet been announced.

ULA and China complete launches

Two launches were successfully completed in the past twelve hours.

First ULA’s Atlas-5 rocket successfully launched two Space Force military satellites and a NASA ultraviolet telescope into orbit on a launch that had been repeatedly delayed since February.

Next, one of China’s pseudo-private companies, Galactic Energy, completed its second launch of its Ceres-1 rocket, putting five smallsats into orbit. As the Ceres-1 rocket uses solid rocket motors, its initial development was for the military, and thus everything Galactic Energy does is carefully supervised by that Chinese military.

The leaders in the 2021 launch race:

46 China
27 SpaceX
20 Russia
6 Europe (Arianespace)
5 ULA

China now leads the U.S. 46 to 43 in the national rankings. The 118 total launches this year is now the most since 1985. And this number is only temporary, with two more launches scheduled in the next 24 hours.

Astronomers discover galaxy with no dark matter

The uncertainty of science: Astronomers have detected a galaxy about 250 million light years away that shows no evidence of any dark matter, a phenomenon that defies the accepted theories about dark matter.

The galaxy in question, AGC 114905, is about 250 million light-years away. It is classified as an ultra-diffuse dwarf galaxy, with the name ‘dwarf galaxy’ referring to its luminosity and not to its size. The galaxy is about the size of our own Milky Way but contains a thousand times fewer stars. The prevailing idea is that all galaxies, and certainly ultra-diffuse dwarf galaxies, can only exist if they are held together by dark matter.
Galaxy AGC 114905

The researchers collected data on the rotation of gas in AGC 114905 for 40 hours between July and October 2020 using the VLA telescope. Subsequently, they made a graph showing the distance of the gas from the center of the galaxy on the x-axis and the rotation speed of the gas on the y-axis. This is a standard way to reveal the presence of dark matter. The graph shows that the motions of the gas in AGC 114905 can be completely explained by just normal matter.

“This is, of course, what we thought and hoped for because it confirms our previous measurements,” says Pavel Mancera Piña. “But now the problem remains that the theory predicts that there must be dark matter in AGC 114905, but our observations say there isn’t. In fact, the difference between theory and observation is only getting bigger.”

The evidence for dark matter in almost all galaxies is the motion of gas and stars in the outer perimeter. Routinely they move faster than expected based merely on visible ordinary matter. To account for the faster speed, astronomers beginning in the late 1950s invented dark matter, an invisible material with a mass sufficient to increase the speeds of objects and gas in the outer regions of galaxies.

That increasingly astronomers are finding galaxies with no evidence of dark matter, based on rotation speeds, only makes this mystery all the more baffling.

Stop being afraid!

After almost two years the data continues to confirm the very first data in March 2020, showing the same thing time after time after time after time. COVID-19 is merely a variation of the ordinary flu, and the panic that has accompanied its arrival in early 2020 was never justified, not for one instant. Let me do a quick review of some recent data points:

First, the Wuhan flu is harmless to more than 99% of the population. If you are under 70 and healthy and get the virus, you are going to survive it. Period. And I say this from personal experience, as I am 68, have both asthma and a heart condition, and I just survived COVID. It wasn’t pleasant, but after two weeks it is over, and here I am.

More important, the numbers and data prove my anecdotal experience, as I noted in a detailed essay in October 26, 2021 — How deadly is COVID-19, really? — using numbers from the CDC as well as the New York Times. More than 99% of the population survives COVID-19, with no serious long term issues.

CDC estimates as of October 2021

Since then the CDC has updated its estimates of the number of people who have been infected by the Wuhan flu, compared to the numbers who have died, as shown in the screen capture to the right. Based on these numbers, 146 million have been infected by COVID (a little less than half the country) and 921,000 have died, resulting in an overall survival rate for anyone who gets COVID-19 as a robust 99.37%.

And that number is deceiving, because the large bulk — almost all — of those in that 0.63% who died were elderly (average age 78) and very sick (with one to three morbidities). A very few were younger, but were generally in very poor healthy (obese or with diabetes).

If you were part of the general healthy population, COVID-19 was harmless to you. In fact, half the country already knows this, as they have been infected and are alive to tell about it. Most had minor symptoms, though many (like myself) got sick for several weeks and then recovered. All however survived, just like the flu.

COVID-19 simply does not merit any special actions, other than to protect that elderly and very vulnerable population. Ordinary people must stop being afraid of it. Take off the masks. Rip down the plexiglass. Hug your friends. Return to normal life.

And most important, stop being afraid!
» Read more

Yutu-2 continues its travels on Moon’s far side

The square boulder being targeted by Yutu-2

An update on the Chinese lunar rover Yutu-2 has revealed that its science team has now decided to head towards a square boulder that the rover had recently spotted on the nearby horizon.

The photo from Yutu-2 to the right shows that boulder. The original update was at this Chinese-language website.

The boulder is presently about 260 feet away, which at pace Yutu-2 travels, about 100 feet per lunar day, will take about two to three lunar days to get there.

Yutu-2 has been traversing the floor of 115-mile-wide Von Kármán crater since January, 2019, a total of 36 lunar days, each about 14 Earth days long. The rover goes into hibernation during the lunar night, is then awakened each lunar morning to operate for about two-thirds of that lunar day, during which it travels about 100 feet, and is then returned to hibernation with the setting of the sun.

1 225 226 227 228 229 1,056