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Here’s one less thing to worry about — or to look forward to: NASA has ruled out any chance that an asteroid called 2024 YR4 will hit the moon in 2032.

Back in February 2025, a SpaceX rocket that had delivered 22 Starlink satellites to orbit had a malfunction. It failed to execute a planned deorbit burn and drifted for 18 days in orbit before beginning an uncontrolled descent about 100km off the west coast of Ireland. Some parts of the rocket landed in Poland, and while they didn’t injure anybody, there was enough concern about the lack of communication that Poland dismissed the head of its space agency. But that wasn't the only lasting impact of this failure. A new paper from Robin Wing and her colleagues at the Leibniz Institute for Atmospheric Physics, published in Communications Earth & Environment ties that specific rocket reentry to a massive plume of pollution for the first time.

Our so-called public servants have one set of standards for themselves and another for private citizens who dare to the challenge their government.

The post MAHA Government Doctors Feel Entitled to Falsely Smear Private Citizens in the Press While Demanding That They Not Be Falsely Smeared in the Press first appeared on Science-Based Medicine.

A new ultrathin photodetector from Duke University can sense light across the entire electromagnetic spectrum and generate a signal in just 125 picoseconds, making it the fastest pyroelectric detector ever built. The breakthrough could power next-generation multispectral cameras used in medicine, agriculture, and space-based sensing.

A team of astrophysicists, cosmologists, and physicists has developed a novel way to compute the Hubble constant using gravitational waves. As our capability to observe gravitational waves improves in the future, this new method could be used to make even more accurate measurements of the Hubble constant, bringing scientists closer to resolving the Hubble tension.

When people think of supernova explosions, they're most-often thinking of Type II core-collapse supernovae, where a massive star becomes a red supergiant before collapsing on itself and exploding. New research uncovers what's going on inside the star before it explodes, and explains why SNe light curves can be different from one another.

On April 8, 2024, volunteers participating in NASA’s Eclipse Megamovie citizen science project all around the United States hurried to photograph the solar eclipse with the latest, greatest equipment, capturing groundbreaking images of the Sun’s corona.

Anyone familiar with the search for alien life will have heard of the “Goldilocks Zone” around a star. This is defined as the orbital band where the temperature is just right for liquid water to pool on a rocky planet’s surface - a good approximation for what we thought of as the early conditions for life on Earth. But what happens if that life doesn’t stay on an Earth analog? If they, like we, start to move towards their neighboring planets, the idea of a habitable zone becomes much more complicated. A new paper from Dr. Caleb Scharf of the NASA Ames Research Center, and one of the agency’s premier astrobiologists, tries to account for this possibility by introducing the framework of an Interplanetary Habitable Zone (IHZ).

An exceptionally flexible region of the spine enables falling cats to twist the front and back halves of their body sequentially to ensure a safe landing

Feedback is pleased to discover another delightfully unconventional unit of measurement, which is used to convey amounts of snow on Ottawa's Rideau canal

If up to 20 per cent of us really do score highly on traits related to psychopathy, we are going to need all the help offered by a compelling new book. Start by admitting your own dark traits, finds Sally Adee

Several readers astutely mentioned in comments on today’s Hili Dialogue that a primary goal of the American attack on Iran wasn’t to democratize the country, but to remove Iran as a Chinese proxy.  As Haviv Rettig Gur, a journalist who writes for the Times of Israel, argues in the piece given below, a mutualistic relationship between Iran and China has developed, with Iran providing China with cheap oil that allows the People’s Republic to build a strategic petroleum reserve (nobody else will buy that oil), and China providing Iran with missiles and sophisticated weapons to go after Israel and the West. As Gur says:

Iran is to America what Hezbollah is to Israel—the smaller second-front proxy you have to take out to have a clean shot at the main foe later on.

This is also why President Trump seems to be pursuing a strange sort of regime change—something very different from what George W. Bush or the neocons meant by the term. Trump doesn’t care one whit about democratization, or, as Venezuela showed us, about changing any element of a regime that doesn’t stand in America’s way. He’s interested in regime change in Iran only because it is fundamentally, in its founding theology, unswervingly anti-American. It is thus not swayable from the Chinese orbit by any other means.

He doesn’t need a democratic Iran, he just needs a not-anti-American Iran.

Why are we so worried about China? Because, says Gur, a potential conflict with China is in the offing—over Taiwan:

The picture that emerges from all of this is of a Chinese forward base, a linchpin of the country’s naval architecture; cyber efforts; an economic Belt and Road influence program—every element of Chinese power projection and empire-building—positioned at the throat of the global oil supply, armed with weapons designed to penetrate advanced American defenses and kill American sailors, and embedded in a strategic architecture whose explicit purpose is to constrain American military freedom in any future conflict over Taiwan.

When Iran began to look like that, it stopped being Israel’s problem and became America’s.

Click below to read, but only if you have a subscription to TFP.  They don’t allow their articles to be archived.

Gur begins by noting that this is not one war but two: America’s on the one hand and Israel on the other, with Israel having existential worries as opposed to America’s concern with China:

. . . across the world, from Brazil to Beijing, London to Karachi, the argument is the same: America is fighting Israel’s war.

But this isn’t true. And the confusion matters, because if you misread what this war is actually about, you will misread everything that follows.

This is not a war about Israel. This is not a war for Israel’s sake. Israel is a beneficiary, a capable and willing local partner, but it is not the reason America is in this fight. America is playing a much bigger game, about more than what happens in the Middle East. The subtext, that Israel exercises outsize influence or “drags Americans into wars they don’t want,” borders on the conspiratorial.

This isn’t one war, but two. There is a regional chessboard, on which Israel, Iran, Saudi Arabia, Qatar, and the other Gulf states all play. Iran’s proxies, its drones and ballistic missiles, its nuclear ambitions, its funding of Hezbollah and the Houthis: All of that belongs primarily to this smaller game. Israel has always understood this board. So have the Saudis. So has everyone in the neighborhood.

But there is a second chessboard, vastly larger, on which the United States and China are the primary players. On this board, the central question of the next 30 years is being worked out: whether the American-led global order survives, or whether China displaces it. Every significant American foreign policy decision, from the pivot to Asia to the tariff wars to the posture in the Pacific, is ultimately a move on this board.

Of course dodos like me (I never claimed to be a pundit) have missed all this, but Gur gives reasons why the U.S. decided to attack now (remember that China has said it will go after Taiwan within seven years):

. . . Reports emerged in late February of a near-finalized deal to supply Iran with supersonic anti-ship cruise missiles capable of speeds exceeding Mach 3 and engineered to evade the Aegis defense systems deployed on American carrier strike groups. China was replacing Iranian government and military software with closed Chinese systems, hardening Iran against CIA and Mossad cyber operations. Joint naval exercises between China, Russia, and Iran in the Straits of Hormuz were becoming regular events, building real-time operational familiarity between the three navies. Iran had switched from the GPS system to the Chinese BeiDou system. And Iran was providing China with the port at Jask, as part of China’s “string of pearls” base system in the Indian Ocean.

The picture that emerges from all of this is of a Chinese forward base, a linchpin of the country’s naval architecture; cyber efforts; an economic Belt and Road influence program—every element of Chinese power projection and empire-building—positioned at the throat of the global oil supply, armed with weapons designed to penetrate advanced American defenses and kill American sailors, and embedded in a strategic architecture whose explicit purpose is to constrain American military freedom in any future conflict over Taiwan.

Gur adds that the U.S. has had a hard time articulating this, but I can understand why they would not want to, even if that articulation would lessen America’s opposition to the war (more than 50%).  But it wouldn’t, since the American public doesn’t think much about China.

Now the first thing I asked myself why I saw Gur’s thesis was this: What is the evidence that this is the real American strategy?  Here is what counts as evidence:

The Americans went to war together with the Israelis because that’s the best way to fight a war like this. Having a capable and loyal local ally willing to deal damage and absorb blowback lowers the costs to America and increases the chances of success. If America ever finds itself in a kinetic fight with China, it presumably expects Japan and Taiwan and South Korea to play a similar role in the fighting. It’s one hell of an operational advantage.

To Gur, the targets give away Trump’s intentions:

. . .In the first 24 hours of the war, American strikes, as confirmed by U.S. Central Command (CENTCOM), focused on Iranian naval vessels, submarines, ports, and anti-ship missile positions along the southern coast. The port of Bandar Abbas, headquarters of the Islamic Revolutionary Guard Corps Navy, was hit. So was Jask, which China had hoped would become a permanent naval foothold on the Indian Ocean. Isfahan and Tabriz, hubs of ballistic missile production and drone assembly, were struck. The goal, explicitly stated by American officials, was not merely to degrade existing stockpiles but to destroy the industrial base from which those weapons are produced, so that China cannot spend the next few years quietly rebuilding it.

President Trump announced the operation in terms that could not have been more direct, explicitly mentioning all those elements of Iranian power—the navy, the missile production sites—that would serve as that second front in a war with China.

Many of these targets so central to CENTCOM’s efforts are no threat whatsoever to Israel.

So far from China: crickets. It’s been silent and has left Iran hanging. In truth, there’s little that China can do save join the war itself—and it’s clearly not keen to do that. As for Trump’s notable omission of words about freeing the Iranian people, or creating a democracy in Iran, Gur says “He doesn’t need a democratic Iran, he just needs a not-anti-American Iran.” Finally, as to why the U.S. has remained mum about what are supposedly its real goals, Gur says this:

So why can’t Secretary Rubio say it? Why hem and haw and offer half-hearted non-explanations to a question that has set the conservative movement aflame?

One obvious answer: They don’t want to push the Chinese to more overt responses. One should always give one’s enemy an excuse not to respond in kind, on the off chance that they don’t want to. It’s a sensible ambiguity on the world stage, but it’s causing damage at home. It may be time for the administration to speak clearly on its grand strategy—not in policy papers, but in clearly articulated statements that actually answer the good-faith questions of a great many Americans.

America went to war in Iran because Iran made itself a Chinese weapon. It didn’t need to do this, to invest so much of the administration’s political capital and of the military’s firepower, just to shore up a second-run Israeli operation. This isn’t about Israel. Iran has been a growing threat to Israel for decades, and yet Trump has always resisted intervening.

As I said, I’m no pundit, and although this all sounds plausible, it hasn’t convinced me completely. Gur makes a good argument, and one that several readers agree with. Perhaps they’re right, and if so kudos to them. But I’m depressed at the thought that if Gur is right, Trump doesn’t give a fig for freeing the beleaguered Iranian people, or about creating a democratic regime. The Iranian people are hoping for that, and perhaps we’re deceiving them.

And if we ever go to war with China, Ceiling Cat help us all!

Researchers have built the smallest OLED pixel ever made—just 300 nanometers across—without sacrificing brightness. By redesigning the pixel with a nano-sized optical antenna and a protective insulation layer, they prevented the short circuits that normally plague devices at this scale. The result is a stable, ultra-tiny light source that could allow full HD displays to fit on an area the size of a grain of sand.

Researchers at Kobe University have developed an AI system that can detect acromegaly, a rare hormone disorder, by analyzing photos of the back of the hand and a clenched fist. The disease often develops slowly and can take years to diagnose, even though untreated cases may shorten life expectancy.

It's hard to turn away from a picture of the Cat's Eye Nebula, even if you've seen it dozens of times. It may be the most visually compelling planetary nebula out there, with its billowing, layered shrouds and its intricate structure. NASA and the ESA have combined images of the Cat's Eye from the Euclid and Hubble space telescopes for a fresh look at a favourite and historical cosmic object.

Most coastal risk assessments have underestimated current sea levels, meaning tens of millions of people face losing their homes to rising waters earlier than expected

Andrew Doyle, the creator of both Jonathan Pie and Titania McGrath (both of whom some people still take seriously), has taken out after wokeness in the article below from his own site (free to access).  It contains 20 short but inadvertently funny videos documenting the “woke era”—an era that Doyle sees as circling the drain. (I wish!). Here’s his intro:

There is little doubt that historians of the future are going to look back on the ‘woke’ era with utter bafflement. How is it that intelligent people were suddenly caught up in this identity-obsessed hysteria? Why did they forget that free speech mattered? Or that human beings cannot change sex? Or that judging people by the colour of their skin rather than the content of their character was a bad thing?

The lunacy was so intense that these same historians will probably have to be persuaded that any of it happened at all. So I thought it would be helpful to compile some of the more ludicrous and shocking video clips from this recent culture war. A kind of digital time capsule, if you will, for the sceptics of the future.

Woke may not have ended, but with any luck we are over the worst of it. With that in mind, here are my top twenty snapshots of this bonkers period of our history. Enjoy!

Here are the 20 topics; I’ve put asterisks next to my favorites. Some of the topics include more than one video.  Do watch them all; it’s a good summary of how crazy things have gotten.

1.  The homophobic horses
2.  The no-no square*
3.  Gay conversion therapy goes mainstream
4.  The abolition of history
5. The alphabet soup (starring Justin Trudeau)
6. Queers for Palestine*
7. Problematic allies
8. “Progressive” racism
9. Pronoun lunacy, starring Kamala Harris and Jeremy Corbyn*
10. Student meltdown (the Christakis incident at Yale about the Halloween-costume fracas. It’s worth finding the whole thing on YouTube.)*
11.  You ain’t black
12.  Humza Yousef’s own goal
13.  Childhood indoctrination
14. Male breastfeeding*
15. Politicans forget about biology
16.  Thought police*
17.  Misogyny becomes “progressive”
18. Everyone is a Nazi*
19. Osama bin Laden gets some new fans (his “Letter to the American people” that the young wokesters so admired was removed from the Guardian, but can be seen here (and read about it here).
20.  The sancification of drag

I suppose my overall favorite is #2: the “no-no square”, described this way:

In Finland, Oulu city council established a €2.5 million project to address the rising cases of sexual assaults by migrants. It was called ‘Safe Oulu’, and this was the official dance.

This performative “dance” is supposed to reduce sexual assault, as if people don’t already know where are the parts that shouldn’t be touched.

 

The end-Permian extinction 252 million years ago wiped out over 80 per cent of marine species, but many ecosystems still had complex food webs despite the losses

Today’s Jesus and Mo strip, called “alps2” is “A resurrection. . . from 2008”.

And Mo is basically right on the etymology, at least according to this NPR site:

Cretin is a word derived from an 18th century Swiss-French word meaning “Christian.” The connection is basically pious, asserting that a mentally innocent person so-labeled is possessed of a Christian soul by way of baptism and is worthy of our mercy and pity.

As for “rug-butter,” I couldn’t find it but assume it is a derogatory reference to Muslims worshiping on prayer rugs, touching their heads to the ground.  But no, Jessus is not literally a cretin as he’s neither deformed nor hails from the Swiss Alps.  But I guess Mo literally butts rugs, though I’ve never seen him kneeling in prayer.

We have a few more batches in the queue now, but it’s never enough.

And today we’re featuring lovely bird photos from Ephraim Heller. I had no idea this gorgeous creature existed! Ephraim’s ID and captions are indented, and, as usual, you can enlarge the photos by clicking on them.

I never had a favorite bird. Oh, sure, I’ve seen plenty of bewitching bee-eaters, mesmerizing manakins and motmots and macaws, plummy pigeons, parrots and pheasants, and tangy toucans and tanagers, but they never held my attention.

In Trinidad I first met a tufted coquette (Lophornis ornatus):

My coquette is 6.6 centimeters (2.6 in) long and weighs just 2.3 grams (0.081 oz) – much smaller than my thumb! My coquette doesn’t eat at hummingbird feeders with the big boys – its bill is too short:

Its food is nectar, taken from a variety of flowers, and some small invertebrates. Across hummingbirds, specialization often involves bill length and curvature for particular flowers; my coquette is relatively unspecialized in bill morphology. My coquette often must sneak nectar from the territories of other hummingbirds. With its small size and steady flight, my coquette resembles a large bee as it moves from flower to flower:

Many hummingbird genera have territorial males, but the combination of extreme ornamentation, very small body size, and intense aggression is a hallmark of Lophornis.

There are 11 species in the genus Lophornis, all as beautiful as my coquette. The name Lophornis combines Greek for “crest” (lophos) and “bird” (ornis), calling out a shared trait of all the birds in this genus:

Per the Merriam-Webster dictionary, a coquette is “a woman who endeavors without sincere affection to gain the attention and admiration of men.” But I forgive my coquette. The females are more subdued than the males, but still marvelous:

In French my coquette is called “Coquette huppe-col,” which literally translates to “tufted collar coquette.” That sounds lovely in French. In German it is called “Schmuckelfe,” which combines the literal terms “jewelry or ornament” and “elf or fairy.” To my ear, “jeweled fairy” sounds more pleasant and less insulting than “schmuckelfe”: