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Luminous by Silvia Park and Ode to the Half-Broken by Suzanne Palmer are both thoughtful and well-written science fiction novels, featuring robots in richly realised worlds. But there the similarities end, says Emily H. Wilson

A new book from photographer Jon McCormack collects his shots of patterns in nature from around the world, from flamingoes to icebergs

A fresh and important book reveals the messy reality of our ever-mutating cells – and why the quest to defeat ageing is futile, says Michael Le Page

Feedback is delighted by the discovery of a very specific scientific sculpture park in China – and wonders if readers can top it

A method that relies on hitting materials with neutrons can measure how much quantum entanglement hides within them, which could enable new kinds of quantum technology

A decline in ancient megafauna in the Middle East coincided with a shift towards smaller, lighter toolkits in the archaeological record – though scientists are still in debate about why

John Pendry is known for creating an invisibility cloak. Twenty years on, he has used the same principles to fashion an even more powerful kind of metamaterial that can teach us about the wild frontiers of physics

This video showed up as a “suggestion” when I was watching YouTube (no, I’m not a Nazi), and I was curious to see what the last German propaganda newsreel of WWII showed. Among other things, which are explained in the 12½-minute clip, is the last video taken of Hitler, showing his left hand shaking violently (5:34), a symptom medical historians have attributed to Parkinson’s disease. (This bit wasn’t shown in the final video.) Hitler committed suicide on April 30, 1945—just five weeks after this newsreel appeared in German cinemas.

The footnotes show the direct translation, but there’s English narration of what’s going on in the video beginning 48 seconds in.

There’s a Wikipedia article on the newsreel series called, Die Deutsche Wochenschau, and here are two paragraphs from it:

Die Deutsche Wochenschau (German for ‘The German Weekly Review’, lit. ‘The German Weekly Look‘ or ‘The German Weekly Show‘) is the title of the unified newsreel series released in the cinemas of Nazi Germany from June 1940 until the end of World War II, with the final edition issued on 22 March 1945. The co-ordinated newsreel production was set up as a vital instrument for the mass distribution of Nazi propaganda at war. Today the preserved Wochenschau short films make up a significant part of the audiovisual records of the Nazi era.

. . . Among the many notable scenes preserved by the newsreel are the Nazi point of view during the Battle of Normandy, the footage of Hitler and Mussolini right after the 20 July plot, and the last footage (No. 755) of Hitler awarding the Iron Cross to Hitler Youth volunteers in the garden of the Reich Chancellery shortly before the Battle of Berlin. Its last documentary, Traitors before the People’s Court, depicted the trial of the accused in the 20 July plot, and was never shown.

It’s fascinating to see how, with the Russians closing in on Berlin, the German people were not told of it but instead were misled to think that they might successfully resist the enemy.

Please allow me to show you pictures of my children, which this year comprise a pair of mallards (Anas platyrhynchos) and a pair of wood ducks (Aix sponsa). The latter don’t seem to be breeding here as they’re on the pond most of the day, and because female wood ducks nest in tree holes, and we ain’t got any.

The female mallard, named Vashti, is nesting nearby, but I’m keeping her nest location as secret as I can as I don’t want people disturbing her while she’s incubating her clutch of seven eggs. I expect a hatch about April 19 or so.  The male mallard, named Armon, patiently awaits Vashti, who comes down to the pond once a day to have a big feed and a bath and preening session. Those sessions last about 15 minutes, but Armon, a lovesick drake, patiently patrols the pond for about 23 hours and 45 minutes per day.

The wood ducks are absent in the mornings but then are at the pond most of the rest of the day, which tells me that the wood duck hen is not sitting on eggs.

But have a look at these gorgeous wood ducks: feathered jewels. I’ve added a few photos of our resident turtles, red-eared sliders (Trachemys scripta elegans). Of the five we put in last fall, I’ve seen two or three. The other turtles must have either died during hibernation or simply walked away from the pond.

Below: the wood duck pair, whom I haven’t named as no names suggested have seemed appropriate. This is an example of extreme sexual dimorphism, as you can clearly see. Why females chose males with those patterns, colors, and a crest is something we don’t understand. But it’s clearly another example of sexual selection in birds, something that ultimately devolves to the difference between the sexes in gamete size and investment. (Yes, there are two sexes in all of these animals.)

Do click on the photos to enlarge them.

The male.  I can’t get enough of seeing him and marveling at his beauty. The only other wild duck to rival this phenotypic glory is that of the male mandarin duck (Aix galericulata), a species found in East Asia. Wood ducks, however, are natives here.

He has satanic red eyes, but really is very gentle (also quick and much smaller than a mallard):

Here’s a video of the male and female wood duck having their lunch at Botany Pond:

Wood ducks seem quite romantic to me. They are always very close to each other and sometimes the male nuzzles the female.

I need names! The hen:

They are quite plump, as I ensure that they never go hungry.

Armon doesn’t really like the wood ducks, but somehow knows to chase them halfheartedly, as you see him chasing the male wood duck here.  When an undocumented drake flew into the pond last Saturday, and began chasing Vashti off her nest (he was clearly eager to copulate), Armon went after him big time.  With the help of Armon, a lot of running and yelling, and my trusty Super Soaker, I finally managed to expel the intruder. Here Armon goes after the male wood duck, who is much faster and more agile.

This is my favorite picture of the pair. They both have their heads cocked, probably looking at something above like a hawk.  Ducks have eyes on the sides of their heads, and so must cock them if they want to see above. It’s very cute when they do that, and rare to see a pair do it simultaneously:

The hen has iridescent feathers, too, but they’re less conspicuous and usually covered by the wings. They are probably byproducts of the colors that are exaggerated in males. You can see some of them below:

Have another picture of my boy:

The male woodie standing on one leg, doing his flamingo impression. (Ducks do this to conserve heat, and this was a chilly day.)

As I said, Vashti is incubating her eggs, but she comes down to the pond for about 15 minutes per day for a nosh and a bath. Here’s part of her preening session, which is quite vigorous. Shortly thereafter she flew off to her nest. Note that Armon stays nearby, as he gets only a few minutes per day with his mate and lady love.

And we mustn’t forget the turtles! On warm days they come out of the water to soak up sun on the rocks, extending their limbs to get as much heat as possible. We call this “turtle yoga.”

The long claws tell us that the one below is a male (they use the claws in courtship):

We’ve spent decades scratching the surface of Mars trying to uncover life there. But we’ve been searching a barren wasteland bombarded by radiation and bathed in toxic perchlorates. The entire time, it's likely that it’s been too hostile to harbor extant life. So if we want a better shot at finding currently living life on Mars, we need to go underground. That is exactly the purpose of Orpheus, a proposed Mars vertical takeoff and landing (VTOL) hopper mission put forth by Connor Bunn and Pascal Lee of the SETI Institute at the 57th Lunar and Planetary Science Conference (LPSC).

Today’s Jesus and Mo strip, called “create”, came with this caption:

In which the boys return to the devilishly tricky P of E.

I assume the artist means “problem of evil”, which of course clever theologians have found a way to rationalize (there’s nothing these people can’t explain).  But Mo is unable to come up with his own theodicy.

For all its ancient, familiar features, the Moon is still changing—and sometimes in dramatic ways. Scientists recently identified a fresh 22-meter-wide crater by comparing orbital images taken years apart, revealing a relatively recent impact that no one actually saw happen. The collision blasted bright material outward in striking rays, making the new crater stand out sharply against the darker lunar surface.

HHS Secretary Robert F. Kennedy, Jr. has been pushing the narrative that raw unpasteurized milk is both safe and better for your health than pasteurized milk. As usual, he is objectively wrong.

The post More On Raw Milk first appeared on Science-Based Medicine.

By tracing the origins of an unusual, short-lived particle, researchers have gathered some of the strongest evidence yet that mass can emerge from fluctuations in the vacuum

James Watson’s The Double Helix is probably one of the greatest science books of all time – but Michael Le Page finds he can’t recommend that anyone actually reads it

A bizarre, record-breaking neutrino detected in 2023 may have originated from an exploding primordial black hole—a relic from the early universe. Scientists suggest these black holes could carry a mysterious “dark charge,” causing rare but powerful bursts of energy that current detectors might occasionally catch. This could explain why only one experiment saw the event. The theory also opens the door to discovering entirely new particles and possibly uncovering the nature of dark matter.

A bizarre, record-breaking neutrino detected in 2023 may have originated from an exploding primordial black hole—a relic from the early universe. Scientists suggest these black holes could carry a mysterious “dark charge,” causing rare but powerful bursts of energy that current detectors might occasionally catch. This could explain why only one experiment saw the event. The theory also opens the door to discovering entirely new particles and possibly uncovering the nature of dark matter.

Planetary exploration may be about to get a major speed boost. Researchers tested a semi-autonomous robot that can move from rock to rock, analyzing each without waiting for human instructions. The system completed missions up to three times faster than traditional methods while still accurately identifying important geological targets. This could allow future missions to cover far more ground in the search for resources and signs of life.

Quantum computers struggle with a major flaw: their information vanishes unpredictably. Scientists have now created a new method that can measure this loss over 100 times faster than before. By tracking changes in near real time, researchers can finally see what’s going wrong inside these systems. This could be a big step toward making quantum computers stable and practical.

Scientists have zoomed in on how phosphoric acid moves electrical charges so efficiently in both biology and technology. By freezing a key molecular pair to extremely low temperatures, they found it forms just one stable structure—contrary to predictions. This structure relies on a specific hydrogen-bond network that may be universal in similar systems. The discovery helps explain how protons travel so quickly and could inspire better energy materials.