During the Great Conjunction event in which Jupiter and Saturn appeared closer to each other in the sky than they have for hundreds of years, photographer Jason De Freitas captured a photo showing the ISS zipping between the two planets. PetaPixel reports: While planning to photograph the conjunction of Jupiter and Saturn, De Freitas realized that he could also include the ISS in the frame. "I had the incredible luck of figuring out I could see the path of the International Space Station traveling through the Jupiter-Saturn conjunction," De Freitas says. After a great deal of planning, on December 17th, De Freitas drove an hour -- "quite a short distance in the scheme of things," he says -- to a location where everything would be aligned perfectly for his shot.

At around 9:54pm from Jellore Lookout in New South Wales, Australia, De Freitas pointed his Pentax 67 and Takumar 600mm f/4 at the planets and captured a 10-second exposure on Fujifilm Provia 100f film. The tracking was done with a Skywatcher NEQ6 equatorial mount. The photo above is what resulted. Here's a closer crop in which you can more clearly see the planets and Jupiter's moons. De Freitas also used a Nikon D750 and Tamron 70-200mm f/2.8 to capture digital video of the event. "Probably the most unique shot I've ever taken," De Freitas says. "[S]omehow everything on the night worked out. Beyond thrilled with this one.

Pfizer and partner BioNTech agreed to supply an additional 100 million doses of their Covid-19 vaccine to the U.S., as the country seeks to widen its immunization program and revive its economy. From a report: The agreement brings the total number of doses to be delivered to the U.S. to 200 million, the companies said Wednesday in a statement. The drugmaker expects to deliver all the doses to U.S. vaccine and drug accelerator Operation Warp Speed by July 31. Countries around the world are seeking supplies of vaccine they hope will allow the reopening of schools and businesses and the resumption of travel. The U.K. has also begun administering doses of the Pfizer-BioNTech shot, and European drug authorities cleared it for use on Monday.

The U.S. has been working to expand supplies of the front-runner vaccine, in light of the drugmakers' commitments to other countries. Earlier this month, the U.S. exercised an option to buy 100 million additional vaccine doses from Moderna, doubling the number it has on order from that company to 200 million. Like Pfizer and BioNTech's vaccine, Moderna's is a two-shot regimen based on new technology known as messenger RNA, but it doesn't have to be stored at the same ultracold temperatures as the Pfizer-BioNTech shot.

Microplastic particles have been revealed in the placentas of unborn babies for the first time, which the researchers said was "a matter of great concern." From a report: The health impact of microplastics in the body is as yet unknown. But the scientists said they could carry chemicals that could cause long-term damage or upset the foetus's developing immune system. The particles are likely to have been consumed or breathed in by the mothers. The particles were found in the placentas from four healthy women who had normal pregnancies and births. Microplastics were detected on both the foetal and maternal sides of the placenta and in the membrane within which the foetus develops. A dozen plastic particles were found. Only about 4% of each placenta was analysed, however, suggesting the total number of microplastics was much higher. All the particles analysed were plastics that had been dyed blue, red, orange or pink and may have originally come from packaging, paints or cosmetics and personal care products. The microplastics were mostly 10 microns in size (0.01mm), meaning they are small enough to be carried in the bloodstream. The particles may have entered the babies' bodies, but the researchers were unable to assess this.

Carnegie's Robert Hazen and Shaunna Morrison teamed up with CU Boulder philosophy of science professor Carol Cleland to propose that scientists adopt a new "evolutionary system" of mineral classification -- one that includes historical data and reflects changes in the diversity and distribution of minerals through more than 4 billion years of Earth's history. Their work is published by the Proceedings of the National Academy of Sciences. Phys.Org reports: The IMA classification system for minerals dates to the 19th century when geologist James Dwight Dana outlined a way to categorize minerals on the basis of unique combinations of idealized compositions of major elements and geometrically idealized crystal structure. "For example, the IMA defines quartz as pure silicon dioxide, but the existence of this idealized version is completely fictional," said Morrison. "Every specimen of quartz contains imperfections -- traces of its formation process that makes it unique." This approach to the categorization system means minerals with distinctly different historical origins are lumped together [...] while other minerals that share a common causal history are split apart.

"The IMA system is typical," said lead author Cleland, explaining that most classification systems in the natural sciences, such as the periodic table of the elements, are time independent, categorizing material things "solely on the basis of manifest similarities and differences, regardless of how they were produced or what modifications they have undergone." For many researchers, a time-independent system is completely appropriate. But this approach doesn't work well for planetary and other historically oriented geosciences, where the emphasis is on understanding the formation and development of planetary bodies. Differences in a diamond or quartz crystal's formative history are critical, Cleland said, because the conditions under which a sample was formed and the modifications it has undergone "are far more informative than the mere fact that a crystal qualifies as diamond or quartz." She, Hazen, and Morrison argue that what planetary scientists need is a new system of categorizing minerals that includes historical "natural kinds."

Because a universal theory of "mineral evolution" does not exist, creating such a classification system for the geosciences is challenging. Hazen, Morrison, and Cleland's proposed solution is what they call a "bootstrap" approach based on historically revelatory, information-rich chemical, physical, and biological attributes of solid materials. This strategy allows scientists to build a historical system of mineral kinds while remaining agnostic about its underlying theoretical principles.

An anonymous reader quotes a report from Phys.Org: A team of scientists at Freie Universitat Berlin has developed an artificial intelligence (AI) method for calculating the ground state of the Schrodinger equation in quantum chemistry. The goal of quantum chemistry is to predict chemical and physical properties of molecules based solely on the arrangement of their atoms in space, avoiding the need for resource-intensive and time-consuming laboratory experiments. In principle, this can be achieved by solving the Schrodinger equation, but in practice this is extremely difficult. Up to now, it has been impossible to find an exact solution for arbitrary molecules that can be efficiently computed. But the team at Freie Universitat has developed a deep learning method that can achieve an unprecedented combination of accuracy and computational efficiency.

The deep neural network designed by [the] team is a new way of representing the wave functions of electrons. "Instead of the standard approach of composing the wave function from relatively simple mathematical components, we designed an artificial neural network capable of learning the complex patterns of how electrons are located around the nuclei," [Professor Frank Noe, who led the team effort] explains. "One peculiar feature of electronic wave functions is their antisymmetry. When two electrons are exchanged, the wave function must change its sign. We had to build this property into the neural network architecture for the approach to work," adds [Dr. Jan Hermann of Freie Universitat Berlin, who designed the key features of the method in the study]. This feature, known as 'Pauli's exclusion principle,' is why the authors called their method 'PauliNet.' Besides the Pauli exclusion principle, electronic wave functions also have other fundamental physical properties, and much of the innovative success of PauliNet is that it integrates these properties into the deep neural network, rather than letting deep learning figure them out by just observing the data. "Building the fundamental physics into the AI is essential for its ability to make meaningful predictions in the field," says Noe. "This is really where scientists can make a substantial contribution to AI, and exactly what my group is focused on." The results were published in the journal Nature Chemistry.

An anonymous reader shares a report: Some diamonds were formed billions of years ago in space as the carbon-rich atmospheres of dying stars expanded and cooled. In our own planet's lifetime, high-temperatures and pressures in the mantle produced the diamonds that are familiar to us as gems. 5,000 years ago, a large meteorite that struck a carbon-rich sediment on Earth produced an impact diamond. Each of these diamonds differs from the others in both composition and genesis, but all are categorized as "diamond" by the authoritative guide to minerals -- the International Mineralogical Association's Commission on New Minerals, Nomenclature and Classification. For many physical scientists, this inconsistency poses no problem. But the IMA system leaves unanswered questions for planetary scientists, geobiologists, paleontologists and others who strive to understand minerals' historical context.

So, Carnegie's Robert Hazen and Shaunna Morrison teamed up with CU Boulder philosophy of science professor Carol Cleland to propose that scientists address this shortcoming with a new "evolutionary system" of mineral classification -- one that includes historical data and reflects changes in the diversity and distribution of minerals through more than 4 billion years of Earth's history. Their work is published by the Proceedings of the National Academy of Sciences. "We came together from the very different fields of philosophy and planetary science to see if there was a rigorous way to bring the dimension of time into discussions about the solid materials that compose Earth," Hazen said.

An anonymous reader quotes a report from NBC News: Several European countries have banned flights from the U.K. over fears about a new coronavirus variant that has forced millions of people in Britain to cancel their Christmas plans. Germany, the Netherlands, Belgium, Austria and Italy all announced restrictions on U.K. travel. Others will likely follow suit as scientists warned that the new strain spreads more quickly than its predecessor. [...] U.K. health officials first identified the new variant, which British scientists have called "VUI -- 202012/01," in mid-September, Maria Van Kerkhove, the Covid-19 technical lead for the World Health Organization, told the BBC on Sunday.

Chris Whitty, the chief medical officer for England, warned in a statement Saturday that it the virus considered to be spreading more quickly. But he said there was no evidence so far to suggest that the new strain is more potent in terms of severe illness or death. "Our working assumption from all the scientists is that the vaccine response should be adequate for this virus," Patrick Vallance, the U.K. government's chief scientific adviser, said at a news briefing Saturday. But Ravindra Gupta, a professor of clinical microbiology at the University of Cambridge, said he was concerned that the virus is on a pathway to become resistant to vaccines. "Whilst it may not be actually resistant, it may not take so many changes after this for it to get there," he said. However, Clarke said that different versions of flu vaccines are required every year and that he did not see why it could not be the same for the coronavirus. The report notes that the new variant "has so far been identified in Denmark, the Netherlands and Australia," adding that more sequencing that can be done will be helpful to determine if this variant is circulating elsewhere.

Gupta said the new strain should be cause for concern in the U.S. and other countries. Warning that the virus could mutate again, he said, "people need to step up their surveillance."

A team of astronomers has discovered evidence in over 150 galaxies for a long-standing alternative model of "modified gravity." New Atlas reports: [R]esearchers on the new study say they've observed the [external field effect] (EFE) in action in 153 different galaxies. The team was studying the rotation curve of the galaxies, which plots the orbital speed of stars and gas against their distance from the center of the galaxy. The researchers discovered that galaxies in strong external fields slowed down much more frequently than galaxies in weaker external fields did. That's a prediction made only by [Modified Newtonian dynamics] MOND, and the discovery surprised even the astronomers themselves.

"The external field effect on rotation curves is expected to be very tiny," says Federico Lelli, co-author of the study. "We spent months checking various systematics. In the end, it became clear we had a real, solid detection." It's an intriguing result, and it may lend some weight to the MOND hypothesis for further study. But it's important to keep in mind that so far the bulk of the evidence still points towards dark matter, and it'll take much more work to topple that hypothesis entirely. The research was published in the Astrophysical Journal.

Jupiter and Saturn will appear as a double planet in the night sky Monday evening thanks to a rare planetary alignment known as a "great conjunction." Axios explains how to see it: In order to see the two planets, step outside under clear skies not long after sundown and look to the southwest. Jupiter will look brighter than Saturn and will appear just above the ringed planet. If you hold out your hand to the sky, the tip of your pinky will be able to cover both planets at once, according to NASA. The two planets will be bright enough to see from most cities. For those interested, NASA has a dedicated article on how to photograph the conjunction.

Former Department of Health data manager Rebekah Jones has filed a lawsuit (PDF) against the Florida Department of Law Enforcement, saying the Dec. 7 morning raid on her house was a "sham" to retaliate against her for not altering COVID-19 data. Tallahassee.com reports: Jones was fired in May for failing to change COVID-19 data, and soon launched her own online data dashboard. Gov. Ron DeSantis said her firing was because she disobeyed superiors; she said it was because she wouldn't alter data to cast Florida in a more favorable light to justify the governor's plans to reopen the state's economy. In the lawsuit filed Sunday night against FDLE Commissioner Rick Swearingen, the department and several agents in Leon County Circuit Civil Court, Jones claims her constitutional rights were violated, including against unlawful search and seizure. She is seeking in excess of $100,000, according to the lawsuit's cover sheet.

She also claims she was unnecessarily roughed up. "We are trying to achieve some kind of redress," said Rick Johnson, the lead attorney in both the civil suit and a separate whistleblower case. "This is still America. This is the kind of thing that happens in tinhorn dictatorships in third world countries." Swearingen has defended the actions of the agents he said were "vilified" by the media. He blamed Jones for any risk of danger to herself or her family. He reiterated those comments in a statement released later Monday. "As I have said before, I am proud of the professionalism shown by our FDLE agents as they served a legal search warrant on the residence of Rebekah Jones. Our criminal investigation continues, and while I have not seen this lawsuit, I believe the facts will come out in court," Swearingen said.

An algorithm determining which Stanford Medicine employees would receive its 5,000 initial doses of the COVID-19 vaccine included just seven medical residents / fellows on the list, according to a December 17th letter sent from Stanford Medicine's chief resident council. The Verge reports: Stanford Medicine leadership has since apologized and promised to re-evaluate the plan. "We take complete responsibility for the errors in the execution of our vaccine distribution plan," a Stanford Medicine spokesperson said in a statement to The Verge. "Our intent was to develop an ethical and equitable process for distribution of the vaccine. We apologize to our entire community, including our residents, fellows, and other frontline care providers, who have performed heroically during our pandemic response. We are immediately revising our plan to better sequence the distribution of the vaccine." The residents' letter also alleges that the error in the algorithm was found on Tuesday but that leadership opted not to make changes to the plan ahead of its December 17th release.

The initial plan led to demonstrations from medical staff in addition to the letter sent by the chief resident council. Here's how the algorithm reportedly worked, according to NPR: "According to an email sent by a chief resident to other residents, Stanford's leaders explained that an algorithm was used to assign its first allotment of the vaccine. The algorithm was said to have prioritized those health care workers at highest risk for COVID infections, along with factors like age and the location or unit where they work in the hospital. Residents apparently did not have an assigned location, and along with their typically young age, they were dropped low on the priority list."

Astronomers behind the most extensive search yet for alien life are investigating an intriguing radio wave emission that appears to have come from the direction of Proxima Centauri, the nearest star to the sun. From a report: The narrow beam of radio waves was picked up during 30 hours of observations by the Parkes telescope in Australia in April and May last year, the Guardian understands. Analysis of the beam has been under way for some time and scientists have yet to identify a terrestrial culprit such as ground-based equipment or a passing satellite. It is usual for astronomers on the $100m Breakthrough Listen project to spot strange blasts of radio waves with the Parkes telescope or the Green Bank Observatory in West Virginia, but all so far have been attributed to human-made interference or natural sources. The latest "signal" is likely to have a mundane explanation too, but the direction of the narrow beam, around 980MHz, and an apparent shift in its frequency said to be consistent with the movement of a planet have added to the tantalising nature of the finding. Scientists are now preparing a paper on the beam, named BLC1, for Breakthrough Listen, the project to search for evidence of life in space, the Guardian understands. The beam that appears to have come from the direction of Proxima Centauri, a red dwarf star 4.2 light years from Earth, has not been spotted since the initial observation, according to an individual in the astronomy community who requested anonymity because the work is ongoing. "It is the first serious candidate since the 'Wow! signal'," they said.

Pfizer and BioNTech SE's Covid-19 vaccine won the backing of a key European review panel, clearing the way for inoculations to start before the end of the year as the continent struggles with rising death rates and tighter lockdowns. From a report: The endorsement was announced in a news briefing by the European Medicines Agency on Monday. The final step in approval is a sign-off from the European Commission. European Union leaders pushed the regulator to speed up its review amid complaints that residents across the continent were still waiting to get a vaccine -- pioneered in Germany -- that is already being used in the U.K. and U.S. The goal is to start a European immunization campaign on Dec. 27, commission President Ursula von der Leyen said last week. Monday's recommendation puts the EU in position to meet that timeline. The commission last week signaled it would give the official go-ahead for distribution to start no later than two days after the agency's sign-off.

In a long article titled "Gates versus the Pandemic," Fast Company looks at the many mitigation efforts launched by the Bill & Melinda Gates Foundation.

- It's one of the largest funders of the World Health Organization.

- It's partnered with the governments of Norway and India, the World Economic Forum, and the research-charity Wellcome Trust to launch an important group called the Coalition for Epidemic Preparedness Innovations (CEPI).

And then Fast Company breaks down the specifics: - The Gates Foundation invested $52 million in a German mRNA startup named CureVac in 2015; a year later, it gave Massachusetts-based Moderna a $20 million grant to support its development of mRNA-based HIV therapeutics, which helped the company further its underlying platform that can also be used to make vaccines.

- The foundation made an initial equity investment of $55 million in BioNTech, another German startup working on mRNA technology, in 2019. (While the foundation typically makes grants, it sometimes invests in companies to negotiate terms that require a funded product be globally accessible and affordable.)

The goal of all of this spending, in part, was to encourage these companies to focus on mRNA vaccines for communicable illnesses. "If you're looking at where the money is," in medical funding, "it's in oncology and cancer immunotherapy," says Lynda Stuart, deputy director of vaccines and host-pathogen biology at the Gates Foundation. Without a push, companies working in the space "wouldn't necessarily gravitate to infectious disease vaccines."

As the virus was beginning to spread, the Gates Foundation encouraged its other vaccine development partners to turn to COVID-19.

- Researchers at Oxford University started work on a coronavirus vaccine made from a weakened, altered form of a chimpanzee cold virus, a platform that CEPI had supported for other vaccines such as MERS.

- Novavax, a biotech startup the foundation had previously funded, also entered the race to create a vaccine.

By October, more than 200 COVID-19 vaccines were in development, but only 11 had reached Phase III clinical trials (human efficacy tests, the last step before regulatory approval). Of those, four vaccine platforms — from Moderna, BioNTech, Novavax, and the University of Oxford — had received early backing from CEPI or the Gates Foundation. In November, BioNTech-Pfizer, Moderna, and Oxford-AstraZeneca all announced that their respective vaccines had proved highly effective in preliminary study results. On December 11, the FDA approved the BioNTech-Pfizer vaccine, which represents a huge victory for the Gates Foundation. (In addition, the foundation is funding contenders that are at an earlier stage of development, such as Icosavax's nanoparticle vaccine construct.)
"Without the efforts of the Bill & Melinda Gates Foundation, the Covid-19 crisis would almost certainly be worse," writes Fast Company. "But its extensive role raises questions about how much we rely on philanthropy."

Their article includes this quote from a Northeastern University law professor focused on intellectual property rights and universal access to treatments for HIV/AIDS and COVID-19. "A fundamental question is, Well, because you have the money, should you be able to control the architecture of global health?"

A former director of vaccine delivery at the Gates Foundation counters that "they add value in helping to design very effective programs."

An anonymous reader writes: The U.S. military's Space Force branch celebrated its one-year anniversary Friday by announcing that its members would now be known as "guardians". But the name was not universally greeted with respect and appreciation. Gizmodo announced the news with a headline which read "Space Force Personnel Will Be Called 'Guardians' Because Sure, Whatever," in an article which jokingly asks how this will affect the other ranks of this branch of the military. "Does someone get promoted from Guardian to Sentinel to Space Paladin to Tython, The Secessionist King Of Mars or something?" (Their article also suggests other names the U.S. military could have considered — like "moon buddies" or "rocketeers" — even at one point proposing "starship troopers".)

Forbes wrote that "The mockery arrived instantly and in great rivers..." But there was an interesting observation from a British newspaper (which is in fact, named The Guardian). "As the Associated Press put it, delicately: 'President-elect Joe Biden has yet to reveal his plans for the space force in the next administration.'" In fact, New York magazine called the new name for members of Space Force the "strongest case yet for its demise," in an article headlined "Abolish the Space Force." ("Maybe 'stormtrooper' was too obvious...")

In an apparent bid to be taken more seriously, on Friday the Space Force also shared an official anniversary greeting they'd received from Lee Majors, the actor who'd played a cybernetically-enhanced Air Force colonel in the 1970s action series The Six Million Dollar Man (who, in later seasons, befriended Bigfoot and the alien community who'd brought him to earth).

But Mashable added sympathetically that "It's been a long year, though. If people want to draw some nerdy joy from a U.S. military branch inadvertently referencing comic books and video games, let them have their fun."

Long-time Slashdot reader AmiMoJo shares this report from Ars Technica: Amazon's competitor to SpaceX Starlink is moving through the prototype-development phase, with the company announcing yesterday that it has "completed initial development on the antenna for our low-cost customer terminal." Amazon said its "Ka-band phased-array antenna is based on a new architecture capable of delivering high-speed, low-latency broadband in a form factor that is smaller and lighter than legacy antenna designs" and the "prototype is already delivering speeds up to 400Mbps." Performance will get better in future versions, Amazon said.

Amazon in July received Federal Communications Commission approval to launch 3,236 low-Earth orbit satellites. The company says it plans to invest over $10 billion in its satellite-broadband division, which it calls Project Kuiper... Amazon didn't provide any updates on when Kuiper will be ready for customers. FCC rules give Amazon six years to launch and operate 50 percent of its licensed satellites, with a deadline date of July 30, 2026. Amazon would have to launch the rest of the licensed satellites by July 30, 2029. Amazon previously said it plans to offer broadband to customers "once the first 578 satellites are launched."
"Custom-built antenna architecture will allow Amazon to deliver a small, affordable customer terminal to connect unserved and underserved communities around the world," explains Amazon's announcement.

"A new satellite from Capella Space was described as "pretty creepy" by Bustle's technology site Input: Like other hunks of metal currently orbiting Earth, the Capella-2 satellite's onboard radar system makes it capable of producing ludicrously high-resolution visuals from its data. More unconventional is the service Capella has launched to match: the government or private customers can, at any time, request a view of anything on the planet that's visible from the sky...

The Capella-2's system of cameras and sensors is nothing short of magnificent. The satellite uses something called Synthetic Aperture Radar (SAR), a technology used by NASA since the 1970s, to detect the Earth's surface through even the densest of clouds. SAR sends a 9.65 GHz radio signal toward the Earth and interprets the signal as it returns, using that data to form a visual... The Capella-2 is now the highest-resolution commercial SAR satellite in the world, capable of 50 cm x 50 cm resolution imaging. Other satellites are only capable of resolution up to about five meters....

Once Capella's full squadron of satellites is airborne, the company will have the ability to quickly snap views of just about any place in the world. That power could quickly be abused if left unchecked.
The article notes Capella already has a contract with the U.S. Air Force, adding "It's not much of a stretch to imagine high-resolution SAR technology turning into a tool for national surveillance...

"Right now there's just one Capella-2 satellite roaming around in the atmosphere, so that functionality is somewhat limited. Capella plans to launch six additional satellites with similar capabilities in the next year."

In response on Friday Capella Space penned a blog post reminding readers that their satellite "does not see through buildings," and that at 50-centimeter resolution "What it cannot do...is see people, license plates or reveal any personally identifiable information. Unlike other technologies that have recently been under scrutiny for privacy infringement such as cell phone geolocation data or automatic license plate readers, SAR imaging specializes in a macro view of the world to see the general patterns of life.

"Our company was founded on the belief that technology in space can significantly benefit life on Earth, and invading privacy does not help that mission. Part of that also means thoroughly vetting our customers and partners to ensure they will use our information for ethical purposes."

fahrbot-bot quotes an article from Science Alert: Nothing keeps time like the beating heart of an atom. But even the crisp tick-tock of a vibrating nucleus is limited by uncertainties imposed by the laws of quantum mechanics.

Several years ago, researchers from MIT and the University of Belgrade in Serbia proposed that quantum entanglement could push clocks beyond this blurry boundary. Now, we have a proof of concept in the form of an experiment. Physicists connected together a cloud of ytterbium-171 atoms with streams of photons reflected from a surrounding hall of mirrors and measured the timing of their tiny wiggles.

Their results show that entangling atoms in this way could speed up the time-measuring process of atomic nuclei clocks, making them more precise than ever. In principle, a clock based on this new approach would lose just 100 milliseconds since the dawn of time itself.

Reuters reports: A new strain of coronavirus identified in the United Kingdom is up to 70% more infectious but it is not thought to be more deadly and vaccines should still be effective, Prime Minister Boris Johnson and scientists said on Saturday.... "This is early data and it's subject to review. But it's the best that we have at the moment and we have to act on information as we have it, because this is now spreading very fast.
Prime minister Johnson also announced new and tougher lockdown restrictions for millions of people in the U.K., according to Reuters, which elsewhere reports the following known facts about the new variant: - The new variant is thought to have first occurred in mid-September in London or Kent, in the southeast of England.

- UK analysis suggests it may be up to 70% more transmissible than the old variant, which could increase the reproduction "R" rate by 0.4...

- The new variant contains 23 different changes, many of them associated with alterations in a protein made by the virus. Patrick Vallance, the UKâ(TM)s chief scientific adviser, said this was an unusually large number of changes...

- In London, 62% of cases were due to the new variant in the week of Dec. 9. That compared to 28% three weeks earlier. In London, the overall infection rate doubled in the last week.

Slashdot reader destinyland writes: The U.S. Space Force celebrated its one-year anniversary Friday with a new announcement: that members of this branch of the military will be referred to as "guardians." They're describing it as "A name chosen by space professionals, for space professionals." The site Space.com notes that the phrase is a nod to the original long-standing "Space Command" branch of the Air Force (founded in 1982), whose motto had been "Guardians of the High Frontier."

In other news, the Space Force now has one member who is actually in outer space — astronaut Michael Hopkins. Launched by SpaceX to the International Space Station in the Crew-1 capsule, Hopkins agreed to join the Space Force in a ceremony in space which a Space Force official said would "spotlight the decades-long partnership" between NASA and America's Defense Department (which oversees its armed forces).

NASA Administrator Jim Bridenstine pointed out that 60% of the astronaut corps comes from the military, according to Space.com, which adds that "At least one other member of NASA's active astronaut corps, Air Force Col. Nick Hague, has also requested to transfer to the Space Force."