Powderhorn

In the beginning, the Bible tells us,

God divided the light from the darkness.

And God called the light day, and the darkness He called night.

And so it has been ever since — until now.

Here in the 21st century, we humans are on the cusp of turning night into day — and bidding good night to the stars that have guided us home for thousands of years.

Two little-noted applications under review by the Federal Communications Commission would, if fully implemented, fundamentally remake the night sky. But the FCC, the satellite regulator, appears to have fast-tracked approval without much of a pause to weigh the benefits of these proposals against the harms they could cause to life on the planet.

A start-up called Reflect Orbital proposes to use large, mirrored satellites to redirect sunlight to Earth at night, with plans to bathe solar farms, industrial sites and even entire cities in light that could, if desired, reach the intensity of daylight. At the same time, Elon Musk’s SpaceX wants to launch as many as a million satellites to serve as orbiting data centers — 70 times the number of satellites now in orbit. We could have a million points of light streaking across our skies at night.

It was another date which will live in infamy. But whereas President Franklin Roosevelt declared war in sombre tones to a joint session of Congress, Donald Trump did it his way.

The US president wore a white cap “USA” cap, dark jacket and white shirt open at the collar. He stood at a blue lectern bearing the US presidential seal and a black microphone, with the Stars and Stripes behind him, presumably at his Mar-a-Lago residence in Florida. He released a video on his own social media network, Truth Social, at 2.30am on Saturday – a time when most Americans are asleep but Trump is often found rage tweeting into the night.

In the space of eight minutes, Trump proceeded to upend half a century of US foreign policy, renege on his campaign promise to avoid the risk of forever wars and leave the Fifa boss, Gianni Infantino, with some explaining to do about why he gave Trump a made-up peace prize.

“There is also a beautiful medal for you that you can wear everywhere you want to go,” the oleaginous Infantino had told Trump last December. Trump was not wearing that medal on Saturday. Instead he delivered a performance that would have had soccer fans chanting: “Are you George Bush in disguise?”

We haven’t had a new film from Gore Verbinski for nine years. But the director who brought us the first three Pirates of the Caribbean movies, the nightmare-inducing horror of The Ring (2002), and the Oscar-winning hijinks of Rango (2011) is back in peak form with Good Luck, Have Fun, Don’t Die. It’s a darkly satirical, inventive, and hugely entertaining time-loop adventure that also serves as a cautionary tale about our widespread online technology addiction.

(Some spoilers below but no major reveals.)

Sam Rockwell stars as an otherwise unnamed man who shows up at a Norms diner in Los Angeles looking like a homeless person but claiming to be a time traveler from an apocalyptic future. He’s there to recruit the locals into his war against a rogue AI, although the diner patrons are understandably dubious about his sanity. (“I come from a nightmare apocalypse,” he assures the crowd about his grubby appearance. “This is the height of f*@ing fashion!”)

The fact that he knows everything about the people in the diner is more convincing. It’s his 117th attempt to find the perfect combination of people to join him on his quest. As for what happened to his team on all the previous attempts, “I really don’t like to say it out loud. It’s kind of a morale killer.”

DENVER—The US Air Force’s new Sentinel intercontinental ballistic missile is on track for its first test flight next year, military officials reaffirmed this week.

But no one is ready to say when hundreds of new missile silos, dug from the windswept Great Plains, will be finished, how much they cost, or, for that matter, how many nuclear warheads each Sentinel missile could actually carry.

The LGM-35A Sentinel will replace the Air Force’s Minuteman III fleet, in service since 1970, with the first of the new missiles due to become operational in the early 2030s. But it will take longer than that to build and activate the full complement of Sentinel missiles and the 450 hardened underground silos to house them.

Amid the massive undertaking of developing a new ICBM, defense officials are keeping their options open for the missile’s payload unit. Until February 5, the Air Force was barred from fitting ballistic missiles with Multiple Independently targetable Reentry Vehicles (MIRVs) under the constraints of the New START nuclear arms control treaty cinched by the US and Russia in 2010. The treaty expired three weeks ago, opening up the possibility of packaging each Sentinel missile with multiple warheads, not just one.

If at first you don't succeed, move, move the goalposts.

Nasa announced on Friday radical changes to its delayed Artemis III mission to land humans back on the moon, as the US space agency grapples with technical glitches and criticism that it is trying to do too much too soon.

The abrupt shift in strategy was laid out by the space agency’s recently confirmed administrator, Jared Isaacman. Announcing the changes on Friday, he said that Nasa would introduce at least one new moon flight before attempting to put humans back on the lunar surface for the first time in more than half a century, in 2028.

The new, more incremental approach would give the Nasa team a chance to test flight and refine its technology. As part of the changes, the Artemis II mission to fly humans around the moon this year, without landing, would also be pushed back from its latest scheduled launch on 6 March to 1 April at the earliest.

“Everybody agrees this is the only way forward,” Isaacman told reporters at a news conference. “I know this is how Nasa changed the world, and this is how Nasa is going to do it again.”

It's weird to see Eric Berger's byline in The Guardian instead of Ars ...

Scientists have captured a beautiful image in unprecedented detail of the vast Milky Way galaxy, of which our own solar system is a part.

The stunning image is the largest ever obtained by the specialist telescope in Chile called the Atacama Large Millimeter/submillimeter Array (Alma) radio telescope, according to the group behind the project.

The picture not only serves to stir the public imagination of outer space but is also incredibly important for understanding our own origins as a planet, said Steven Longmore, the principal investigator and a professor of astrophysics at Liverpool John Moores University.

“The conditions at the center of our galaxy – the extreme temperatures, pressures, and turbulence – are very similar to the conditions in galaxies in the early universe, when most of the stars that exist today were being formed. Those galaxies are so far away that we cannot observe individual stars and planets forming within them, but we can in the center of our galaxy, and that’s what our survey has been able to do,” Longmore said. He has worked with more than 160 scientists over several years on a project called the Alma CMZ Exploration Survey.

I hate heds like that, but in trying to rework it, I realized anything short enough to fit the space (figuratively) would not adequately convey the story.

Plenty of research has amassed on the benefits of applying biochar to soil to lock in carbon. Now, an unusual new study looks at a novel way to get it there: feed biochar to cows, it says, and they’ll do the work for you.

The new research finds that when cows consume and excrete biochar, it remains almost completely intact and stable, suggesting that cows could spread biochar across the land and become architects of better soil health while tackling their own climate impacts.

Led by a team of Swiss researchers, the study took a group of eight dairy cows and fed them a diet containing trace amounts of biochar, about 1%. The feeding trial had two periods of 35 days each. In one, half the cows received the biochar additive, and the other half did not. In the second, the researchers switched the two groups of cows, so that each cow ultimately acted as its own control.

Twitter co-founder Jack Dorsey’s financial services company Block has announced it will fire 40 percent of staff – around 4,000 people – because new "intelligence tools" the company is implementing “can do more and do it better.”

The company announced the sackings in the shareholder letter [PDF] accompanying its Q4 earnings announcement on Thursday. The payments and crypto company reported quarterly revenue of about $6.25 billion – up 3.6 percent year-over-year – and gross profit of around $2.9 billion. The company made $1 billion of gross profit in December 2025 alone. Full-year revenue came in at about $24.2 billion, and gross profit was around $10.36 billion.

“2025 was a strong year for us,” Dorsey wrote in the shareholder letter, before posing the question, “Why are we changing how we operate going forward?”

His answer, spread across the letter and a Xeet, is that AI has already changed the way Block works, so it needs to change its structure.

“We're already seeing that the intelligence tools we’re creating and using, paired with smaller and flatter teams, are enabling a new way of working which fundamentally changes what it means to build and run a company. and that's accelerating rapidly,” he wrote on X.

Zitron is apparently back for the plebs.

Hey all! I’m going to start hammering out free pieces again after a brief hiatus, mostly because I found myself trying to boil the ocean with each one, fearing that if I regularly emailed you you’d unsubscribe. I eventually realized how silly that was, so I’m back, and will be back more regularly. I’ll treat it like a column, which will be both easier to write and a lot more fun.

This quote is from the February 2016 conversation where my ex-wife and I agreed to divorce. It didn't seem at all plausible ... if we'd tried to make it work for seven years (of which perhaps three were good) and failed, how the hell was that going to happen?

A decade later, we appear determined to find out. Neither of us has a car, which means Lyfts are the order of the day when I head up there (she has a kitchen and indoor plumbing, so she doesn't come down to my van).

And this is keeping things to a pretty steady monthly cadence (three data points is a trend, and she wants me there next week) of a few nights, which I think is the sweet spot.

I've taken myself off the market. She's pulling me in far more than pushing me away (though she still does do both). We're both in our mid-40's at this point and uninterested in starting our life stories from the top with a new partner.

Which means we could be settling for each other, just ground down by life and seeking familiarity. There's no way we work long term; her kids hate me, and as such, the windows where I can visit are dictated by being sure neither will knock on the door.

But at this point, we've been talking on the phone almost daily, usually for hours, since my dad died in November.

We are not the couple who hated each other in 2016. In 2026, we are something different. Almost curious ... prodding, seeing what's still there. And the answer is a lot; we've not kept things platonic.

But it isn't about the sex. As I've said before, it's about the touch.

While lifesaving vaccines face a relentless onslaught from the Trump administration—with fervent anti-vaccine advocate Robert F. Kennedy Jr. leading the charge—scientific literature is building a wondrous story: A vaccine appears to prevent dementia, including Alzheimer’s, and may even slow biological aging.

For years, study after study has noted that older adults vaccinated against shingles seemed to have a lower risk of dementia. A study last month suggested the same vaccine appears to slow biological aging, including lowering markers of inflammation.

“Our study adds to a growing body of work suggesting that vaccines may play a role in healthy aging strategies beyond solely preventing acute illness,” study author Eileen Crimmins, of the University of Southern California, said.

Another study this month suggested the positive findings against dementia from the past may even be underestimates of the vaccination’s potential, with a newer vaccine against shingles providing even more protection.

We’ve been saying this for years now, and we’re going to keep saying it until the message finally sinks in: mandatory age verification creates massive, centralized honeypots of sensitive biometric data that will inevitably be breached. Every single time. And every single time it happens, the politicians who mandated these systems and the companies that built them act shocked—shocked!—that collecting enormous databases of government IDs, facial scans, and biometric data from millions of people turns out to be a security nightmare.

Well, here we go again.

A couple weeks ago, Discord announced it would launch “teen-by-default” settings for its global audience, meaning all users would be shunted into a restricted experience unless they verified their age through biometric scanning. The internet, predictably, was not thrilled. But while many users were busy venting their frustration, a group of security researchers decided to do something more useful: they took a look under the hood at Persona, one of the companies Discord was using for verification (specifically for users in the UK).

What they found, according to The Rage, was exactly what we would predict:

Together with two other researchers, they set out to look into Persona, the San Francisco-based startup that’s used by Discord for biometric identity verification – and found a Persona frontend exposed to the open internet on a US government authorized server.

In 2,456 publicly accessible files, the code revealed the extensive surveillance Persona software performs on its users, bundled in an interface that pairs facial recognition with financial reporting – and a parallel implementation that appears designed to serve federal agencies.

Let me say that again: 2,456 publicly accessible files sitting on a government-authorized server, exposed to the open internet.