If you want to see a compilation of all of Trump’s executive orders, you can find links here that will take you to the contents of the official orders.
I’ve talked about the new rules on sex and gender before, but wanted to discuss them again, briefly. Click the screenshot below to see Trump’s EO on those issues:
It’s a long document (four pages when printed out single-space in 9-point Times type, but the upshot is an official recognition of two sexes (male and female, of course), which are seen as immutable. Coupled with that is a refusal to use, on government documents or in government work, any concept of gender.
One excerpt:
It is the policy of the United States to recognize two sexes, male and female. These sexes are not changeable and are grounded in fundamental and incontrovertible reality. Under my direction, the Executive Branch will enforce all sex-protective laws to promote this reality, and the following definitions shall govern all Executive interpretation of and application of Federal law and administration policy:
(a) “Sex” shall refer to an individual’s immutable biological classification as either male or female. “Sex” is not a synonym for and does not include the concept of “gender identity.”
(b) “Women” or “woman” and “girls” or “girl” shall mean adult and juvenile human females, respectively.
(c) “Men” or “man” and “boys” or “boy” shall mean adult and juvenile human males, respectively.
(d) “Female” means a person belonging, at conception, to the sex that produces the large reproductive cell.
(e) “Male” means a person belonging, at conception, to the sex that produces the small reproductive cell.
(f) “Gender ideology” replaces the biological category of sex with an ever-shifting concept of self-assessed gender identity, permitting the false claim that males can identify as and thus become women and vice versa, and requiring all institutions of society to regard this false claim as true. Gender ideology includes the idea that there is a vast spectrum of genders that are disconnected from one’s sex. Gender ideology is internally inconsistent, in that it diminishes sex as an identifiable or useful category but nevertheless maintains that it is possible for a person to be born in the wrong sexed body.
(g) “Gender identity” reflects a fully internal and subjective sense of self, disconnected from biological reality and sex and existing on an infinite continuum, that does not provide a meaningful basis for identification and cannot be recognized as a replacement for sex.
While most of this seems okay to me, I’d make two changes. First, sex is not recognizable, at least via the apparatus to produce gametes, at conception, when we have only a single cell. With high probability you could identify its sex via DNA testing, but the reproductive apparatus develops only later. Ergo I would substitute “at birth” for “at conception”.
Second, it makes no provision for true intersex people, who cannot be identified as either male or female (hermaphrodites are one example). Though such people are vanishingly rare, so that sex is about as close to binary as you can get, they are not nonexistent, and constitute somewhere between 1 person in 5600 to 1 in 20,000. There has to be some provision for identifying the sex of these people, perhaps with an “I” for intersex.
It also deals with women’s spaces:
Sec. 4. Privacy in Intimate Spaces. (a) The Attorney General and Secretary of Homeland Security shall ensure that males are not detained in women’s prisons or housed in women’s detention centers, including through amendment, as necessary, of Part 115.41 of title 28, Code of Federal Regulations and interpretation guidance regarding the Americans with Disabilities Act.
(b) The Secretary of Housing and Urban Development shall prepare and submit for notice and comment rulemaking a policy to rescind the final rule entitled “Equal Access in Accordance with an Individual’s Gender Identity in Community Planning and Development Programs” of September 21, 2016, 81 FR 64763, and shall submit for public comment a policy protecting women seeking single-sex rape shelters.
Sec. 5. Protecting Rights. The Attorney General shall issue guidance to ensure the freedom to express the binary nature of sex and the right to single-sex spaces in workplaces and federally funded entities covered by the Civil Rights Act of 1964. In accordance with that guidance, the Attorney General, the Secretary of Labor, the General Counsel and Chair of the Equal Employment Opportunity Commission, and each other agency head with enforcement responsibilities under the Civil Rights Act shall prioritize investigations and litigation to enforce the rights and freedoms identified.
In general I agree, but there may be specific cases, for example a trans woman in jail for embezzlement and not sexual aggression, might be placed in a woman’s prison. Even so, a trans woman is a biological male and on average men are more aggressive than women, but on the other hand a trans women in a male prison may be at risk of becoming sexually assaulted.
Also, re rape counseling and running women’s shelters, I do not think that there should be legal prohibitions against hiring trans women to do the job, I can’t imagine, in a private organization, of favoring their hiring. I said as much in two previous posts (one of which is here) in which I agreed with Ed Buckner. Buckner’s words are indented, mine doubly indented (bolding is his):
Coyne does offer some opinions that are related to ethics, of course.
For example,
Transgender women, for example, should not compete athletically against biological women; should not serve as rape counselors and workers in battered women’s shelters; or, if convicted of a crime, should not be placed in a women’s prison.
My own “ethical” opinion is close to Coyne’s. I would probably—but only after I studied the matter more carefully, including discussions with rape counselors and probably even with women who’ve been victims of rape or of women-batterers, modify some of what Coyne wrote slightly to say:
Neither men or women, cis- or trans-gendered, should serve as rape counselors and as workers in battered women’s shelters, unless the counselors or others working there pass a background check; even then, no one should so serve unless the clients are aware of and accept the status of the counselors/workers.
I can imagine circumstances where there might be an advantage to victims of having a man or a trans woman on hand, but the rights, needs, and wants of the victims, even if sometimes irrational, should be paramount.
In response, I agreed:
I think the second version, expressing Buckner’s views, is better than what I wrote, and it does summarize views I already held (but failed to express). While I still think that at present tranwomen should not compete against biological women in sports, and shouldn’t really be running battered women’s shelters, they should not be completely barred from that job nor from acting as rape counselors—so long as (as Buckner writes), they undergo a background check and the women residents of shelters or women being counseled for rape or sexual assault are made aware that the counselor is a trans woman (a biological man) and are okay with that. This view will, of course still be seen as “transphobic” by some extremists, but there’s a very good case for holding this view in light of the rights of biological women. This involves a conflict between two groups’ “rights”, and in the interests of fairness and the needs of biological women, I come down against sports participation of transwomen and cast a very cold eye on the other two issues.
In other words, I’d make the rule: “Any woman seeking counseling for rape or sexual assault, or seeking entry into a woman’s shelter, should have the right to have a woman counseling and dealing with her psychological or medical needs.”
In that sense I’d modify Trump’s rules.
h/t: Jay
Fast radio bursts (FRBs) are intense flashes of radio light that last for only a fraction of a second. They are likely caused by the intense magnetic fields of a magnetar, which is a highly magnetic neutron star. Beyond that, FRBs remain a bit of a mystery. We know that most of them originate from outside our galaxy, though the few that have occurred within our galaxy have allowed us to pin the source on neutron stars. We also know that some of them repeat, meaning that FRBs can’t be caused by a cataclysmic event such as a supernova. Thanks to one repeating FRB, we now know something new about them.
In a new study published in The Astrophysical Journal Letters, astronomers looked at FRB 20240209A, which was first observed by the CHIME radio telescope in February 2024. The FRB happened to be a repeater and was observed 21 times between February and June. Because it kept repeating, the team was able to observe six of the FRB events from a smaller, companion observatory 60 kilometers away. This allowed the team to pinpoint the source even though it was two billion light-years away.
They found a couple of unusual things. The first is that the FRB originated from the edge region of a galaxy. Most FRBs occur in the more central region of a galaxy because that’s where stars form and therefore where you’re more likely to find neutron stars. The second was that this particular galaxy is more than 11 billion years old, and is well past its star-forming period. What’s surprising about that is that neutron stars are the remnants of massive stars that die as supernovae. Large stars have cosmically short lifetimes, so the fact that this FRB occurred in an old, long-dead galaxy means that the neutron star that generated it must also be old.
The general reasoning was that FRBs are caused by young magnetars. The thought is that they could be caused by magnetic flares, similar to solar flares of the Sun. But since neutron stars can’t generate new heat, they cool and become inactive over time. So we shouldn’t see old neutron stars generating FRBs. This study proves that old stars can create FRBs.
One explanation for this is that the FRB might have occurred not within the galactic edge itself, but rather in a dense globular cluster orbiting at the edge of the galaxy. The galaxy is too far away for us to distinguish between these two options, but globular clusters are known to have numerous stellar mergers. One possibility is that this repeating FRB was caused by merging magnetars. As their magnetic fields merged and realigned, bursts of radio energy were released to create the FRB.
It will take more observations to be sure, but it is now clear that the astrophysical processes that create FRBs are more diverse than we thought.
Reference: Eftekhari, T., et al. “The Massive and Quiescent Elliptical Host Galaxy of the Repeating Fast Radio Burst FRB 20240209A.” The Astrophysical Journal Letters 979.2 (2025): L22.
The post A Fast Radio Burst Came From an Old, Dead Galaxy appeared first on Universe Today.
The Brandeis center has announced a settlement in its civil lawsuit against Harvard University for allowing the creation of an anti-Semitic atmosphere, and Harvard will make some changes. The deal is announced by the Center, and you can see the announcement by clicking below:
Harvard, of course, has admitted to neither wrongdoing nor liability; I suppose it’s just making these changes because it’s the right thing to do. LOL!
From CNN:
One day after the inauguration of President Donald Trump, who has said he would “remove the Jew haters” if reelected, Harvard University has settled two lawsuits accusing the Ivy League school of failing to protect Jewish students from antisemitic bullying and harassment on campus.
In the settlement with the Louis D. Brandeis Center for Human Rights Under Law, Jewish Americans for Fairness in Education, and Students Against Antisemitism — a group of six Jewish students — Harvard agreed to make several changes to how it addresses antisemitism on campus.
Among them is adopting the International Holocaust Remembrance Alliance definition of antisemitism when reviewing complaints of antisemitic discrimination and harassment and posting a document online that clarifies people who identify as Jewish and Israeli are covered by the school’s non-discrimination and anti-bullying policies.
Additionally, the school agreed to draft an annual report for the next five years that details its response to discrimination and harassment; hire a point person to consult with on all complaints of antisemitism, and provide training on combating antisemitism for staff who review the complaints.
“Today’s settlement reflects Harvard’s enduring commitment to ensuring our Jewish students, faculty, and staff are embraced, respected, and supported,” a Harvard University spokesperson said in a statement. “We will continue to strengthen our policies, systems, and operations to combat anti-Semitism and all forms of hate and ensure all members of the Harvard community have the support they need to pursue their academic, research and professional work and feel they belong on our campus and in our classrooms.”
Harvard has come under fire in the past year for how it addresses antisemitic bullying on campus. Much of the criticism and complaints from students and faculty stemmed from the protests and vandalism on campus following the October 7, 2023, Hamas attack on Israel.
Last year, Harvard received a failing grade from the Jewish civil rights advocacy group Anti-Defamation League for its policies to protect Jewish students from antisemitism on campus.
It also has the lowest Free Speech rating from FIRE among all 251 schools. The two others right above it also have ratings of “abysmal”: NYU and Columbia, and both are, as I recall, subject to similar Title VI lawsuits.
I have no idea whether this settlement has anything to do with Trump’s threats, nor do I much care; I suspect, though, that a settlement was in the works before Trump was inaugurated. Harvard has not looked good after Claudine Gay stepped down on January 2, 2024, plagued by accusations not just of personal plagiarism, but of Harvard hypocrisy in how it dealt with speech.
At any rate, the IHRA definition of antisemitism is so tame that I don’t know why it’s even controversial. Here it is from their page of explanation:
Note that the definition doesn’t include anti-Zionism, but does state this:
Manifestations might include the targeting of the state of Israel, conceived as a Jewish collectivity. However, criticism of Israel similar to that leveled against any other country cannot be regarded as antisemitic.
To me, that means that if you deny the right of Israel to exist, that’s anti-Semitism, for it conceives of Israel, because it’s the one Jewish state, as the one state that has no right to exist. We all known that “Zionist” has long since become a euphemism for “Jews” by pro-Palestinian or anti-Israeli demonstrators, and this ruse no longer carries water. That’s the point made by Natasha Hausdorff in the Munk debate on whether anti-Zionism is the same as anti-Semitism, and Hausdorff and her partner, Douglas Murray, did change the mind of the audience about this. I’ve watched this video several times; Hausdorff’s final metaphor is brilliant.
As for the other agreeements, about annual reports, point persons, and the like, yes, they are necessary to combat the atmosphere of anti-Semitism that Harvard itself tacitly admitted by settling the lawsuit.
None of this, however, should be construed as prohibiting acts of speech that are anti-Semitic or anti-Israel. A Harvard student still has the right to stand in Harvard Yard holding a placard reading “Gas the Jews.” (It won’t do his reputation much good, however.) It’s only when a multiplicity of anti-Semitic acts, teaching, and speech add up to create an atmosphere that discriminates against Jews, or creates a climate that chills the speech of Jews, that lawsuits must be filed.
Next, Columbia and NYU. . .
At the end of large engineering projects, the design team is typically asked to develop a document, in some cases called a Theory of Operations. This document is meant to describe the design decisions, why they were made, and how they were implemented. The document intends to inform future engineers about why a system operates the way it does so they can assess if any modifications or improvements can be made. It also allows the design engineers to reflect on their work as a whole, sometimes in a new light. Recently, some original members of the design team of the James Webb Space Telescope decided to take their shot at a brief version of such a document, releasing a paper that describes the design history of what is now considered to be one of the crowning jewels of humanity’s space telescope fleet.
Pierre Bely, the (now retired) Chief Engineer for the Space Telescope and Science Institute (STScI), led the paper’s writing. He originally started conceptualizing the idea of a Hubble success back in the 1980s. He was prompted to do so by Riccardo Giacconi, the then-head of the STScI, who, given his experience on other satellites like Chandra and Einstein, knew how long it would take to develop a successor to Hubble.
Hubble itself, the doyenne of Space Telescopes that served as the workhorse of astronomers for decades, wasn’t eventually launched when Bely was tasked with coming up with plans for a successor. It had taken almost 30 years of lobbying, building, and testing to launch Hubble in 1990, with an additional three years of extensive rework to repair it once it was in orbit. Hubble itself only had a 14-year mission lifetime, so even if its successor had started work before Hubble launched, it wouldn’t be ready to launch before its original mission ended.
Fraser has been watching JWST for a long time.Budget constraints at STScI proved an initial challenge. The Institute had the staff to operate Hubble but not to design a completely new instrument from scratch. But, Bely did find some time in his role as Chief Engineer to develop some concepts. Preliminary design requirements were hazy, but the consensus between the originators of the idea that became JWST was that it should be able to see into the infrared, which was beyond Hubble’s capabilities. It was also planned with a 10-m mirror, which was intended to match several ground-based telescopes in the design phase.
Fortunately, NASA’s Advanced Concepts Office had already done preliminary work on several designs for a next-generation space telescope. The Very Large Space Telescope (VLST) kept the traditional name of NASA’s telescopes but was designed to be assembled in space by astronauts using the space shuttle. It was essentially just a version of Hubble with a bigger mirror.
The Golay-9 concept was a bit more out-of-the-box. It consisted of nine 1.7m telescopes that would work in concert with one another. However, it was again designed to be assembled by astronauts and placed in LEO.
Artist’s image of the Large Deployable Reflector, including astronaut in the midst of assembly.Another concept was the Large Deployable Reflector, which was 20m in diameter with segmented mirrors. It would need a significant amount of cryogenics to stay cool as it orbited in LEO close to the space station – mainly ease assembly by astronauts and resupply of cryogenics.
Bely and Francois Roddier, an optics specialist, considered those ideas when designing an original 10m Hubble successor that looks almost nothing like the final form of the satellite. Initially proposed in 1986, it had an all-encompassing shield that was supposed to protect it from the light and heat of the nearby Earth while still being able to fit in the fairing of a modified Energia rocket designed by the then-Soviet Union.
During this time, the project took on a new name—the Next Generation Space Telescope, which it would be known by until it was renamed JWST in 2002. But before that, it had several more preliminary design iterations, including a “Detour via the Moon.”
Bely and Roddier’s concept telescope.A space telescope doesn’t necessarily have to be free-floating in space – it can also be located on another heavenly body. That was the basis for an idea initially to coincide with President George H. W. Bush’s Space Exploration Initiative to return to the Moon in the 1990s. To match this design, a version of the NGST that housed a 16m mirror on the surface of the Moon that looked more like a traditional Earth-bound telescope than a free-floating space one. However, that idea died with the SEI as it became clear a few years into Bush’s tenure that NASA would not return to the Moon anytime soon – and still hasn’t.
During the late 1980s and early 1990s, many workshops were held to discuss different trade-offs in the design of the NGST. These changed to a more formal structure in 1995, almost 5 years after Hubble had launched, at a workshop to define the design goals of the new Hubble successor that was called by Edward Weiler, NASA’s Chief Scientist for Hubble. That workshop kicked off two years of a study designed to result in a fully formed idea for a space telescope – and is what the modern version of JWST is based on today.
At the end of the study, the general outline of the space telescope was clear, with a sun shield facing the Sun and allowing radiative cooling on the other side while keeping a reasonable temperature for some operational electronics. It would also be located at the Earth-Sun L2 Lagrange point rather than on the Moon or in orbit around Earth. This had the advantage of being far enough away from Earth and the Moon that it no longer had to be completely enclosed as earlier concepts had been, giving it a much wider field of view.
“Yardstick” version of the JWST / NGSTThis version of JWST, known as the “Yardstick,” focused heavily on the design of the optical system, with an 8 m mirror originally proposed. It utilized beryllium due to its advantages for cryogenics on space telescopes, including its high thermal conductivity. It was designed to fit in an Atlast II fairing and be fully expanded after launch.
Even at this early stage in the project, cost was already a consideration, and JWST ran notoriously over budget during its development and testing cycle. However, at the time, the expected budget seemed in line with comparable missions like Hubble. NASA designed to move forward with a concept phase study and asked three aerospace companies to present their NGST ideas at an STScI meeting. That meeting resulted in a report in the summer of 1997 that specified three very different ideas from TRW, Ball Aerospace, and Lockheed Martin.
NASA decided to move forward with the TRW and Ball concepts, though Lockheed continued developing its own project in an effort to win back the business. After a while, TRW and Ball decided to combine their forces into a single mission study. Eventually, in 2001, Northrup Grumman bought TRW, and the division that managed the NGST project changed its name to Northrup Grumman Space Technology (NGST). NASA granted them the right to take the lead contractor role on the JWST.
Some of the discoveries JWST has made are astonishing.Budget constraints further limited the scope of the mirror down to 6 meters from the planned 8, but at this point, the overall design seemed pretty much in line with what is currently floating in space today. Twenty years later, after much design refinement, manufacturing, and testing, it was successfully launched, and despite being blasted by micrometeorites (which admittedly was always part of the planned design), it has been providing us with fascinating pictures from every corner of space. With this paper, some of the original team members can reflect on their contributions to this marvel of space technology and be proud. In the end, all their efforts seem to have been worth it.
Learn More:
Bely et al – Genesis of the James Webb Space Telescope architecture: The designers’ story
UT – How Webb Stays in Focus
UT – Hubble and Webb are the Dream Team. Don’t Break Them Up
UT – The JWST is Re-Writing Astronomy Textbooks
Lead Image:
Artist’s view of a 16-meter telescope on the Moon, proposed by Bely. Telescope pointing made use of a hexapod with linear actuators. During the lunar day, a shield was to be rolled over the telescope to protect it from heat coming from the Sun
Credit – P. Y. Bely / D. Berry / STSCI
The post Tracing the Big Ideas that Led to Webb appeared first on Universe Today.
The discovery of a few thousand type 1a supernovae over the last few decades has helped measure the expansion of the Universe. The new Vera Rubin Observatory will soon to start scour the skies looking for more. Astronomers hope that the discovery and observations of millions more exploding stars will allow the universal expansion to be mapped in unprecedented detail. If all goes to plan, the survey will begin in a few months with the entire southern sky being scanned every few nights.
A Type Ia supernova is a powerful explosion that occurs when a white dwarf star in a binary system accretes matter from its companion star. Eventually it will reach a critical mass triggering a catastrophic thermonuclear reaction that we see as a Type 1a supernova. They are characterised by a the absence of hydrogen in their spectra, which sets them apart from other types of supernovae. The event releases a phenomenal amount of energy, briefly outshining an entire galaxy. The shockwave from the event can often trigger the formation of new stars.
2005ke, a Type 1a supernova. Credit: NASA/Swift/S. ImmlerThese violent explosions have played a key role in understanding the expansion of the universe. Much like cepheid variable stars, these supernovae have a consistent peak brightness due to the predictable nature of the thermonuclear explosion that triggers them. They can therefore be used as “standard candles” to measure astronomical distances. By comparing the apparent brightness of a Type Ia supernova with its known intrinsic luminosity, it’s possible to calculate how far away it is. When combined with redshift measurements (which indicate how much the wavelength of light has stretched as the universe expands), these distance measurements allow scientists to map the rate at which the universe is expanding.
To date only a relative handful have been observed. This is where the Vera Rubin Observatory comes in. It’s located in the Atacama Desert of Chile and is designed to explore dark matter, dark energy, and the large-scale structure of the universe. Equipped with the world’s largest digital camera, the Legacy Survey of Space and Time (LSST) will capture huge areas of the sky that will enable the mapping of millions of galaxies and track transient cosmic events like just like Type 1a supernovae and asteroids.
Thousands of stars glitter in the black skies above the bone-dry desert of the Atacama in northern Chile. Photo credit: Gerhard Hüdepohl/atacamaphoto.com.Every night, the observatory – which is funded by the U.S. National Science Foundation and the U.S. Department of Energy’s Office of Science – will capture about 20 terabytes of data, generating an expected 10 million alerts. This in itself is an – ahem – astronomical challenge so alerts will be made available to science teams through seven community software systems. The alerts will be collated with other datasets and machine learning technology will categorise them as kilonovae, variable star or Type 1a supernovae. Astronomers can then utilise filter to hone in on the data most useful for their research.
If the Vera Rubin Observatory is as successful as it is hoped and if it does indeed discover millions of new Type 1a supernovae, then it will be of great benefit to astronomers. Not only will we be able to build a far more accurate distance map of the cosmos but we will also be able to get a better understanding of its expansion and how it has evolved over time.
Source : NSF–DOE Vera C. Rubin Observatory Will Detect Millions of Exploding Stars
The post Rubin Will Find Millions of Supernovae appeared first on Universe Today.
Even long-time readers are dominating threads with too many comments, which reduces intellectual diversity. Please note this from Da Roolz (the posting guidelines) on the left sidebar:
9.) Try not to dominate threads, particularly in a one-on-one argument. I’ve found that those are rarely informative, and the participants never reach agreement. A good guideline is that if your comments constitute over 10% of the comments on a thread, you’re posting too much.
I am not calling out specific violaters, but asking for self-restraint. Perhaps everyone should refresh their knowledge of Da Roolz.
Thank you.