frontier technology

Fusion Is Leaving the Physics Lab and Entering the Engineering Era

In 2025 two reactors held a piece of a star in place for over 20 minutes and produced no usable power. That paradox, not another unlimited-energy promise, is where fusion actually stands.

Why Pharma Is Sending "Mini-Factories" Into Orbit

A factory the size of a mini-fridge is orbiting Earth, processing pharmaceutical crystals in microgravity and returning them by capsule. Orbit is turning from a laboratory into a supply chain.

Beyond the Wheelchair: How Machines Are Learning to Restore Motion

Without an implant or surgery, researchers are teaching an EEG cap to translate imagined movement into control of a robotic hand. It is an early step towards restoring motion after paralysis.

The Frontier Week Ahead: Six More Deep Dives, One a Day

Next week on The Signal: six deep dives, one a day, Monday to Saturday.

Riding a Laser to Another Star

The most concrete plan to reach another solar system carries no fuel at all. It leaves the engine on the ground and rides a beam of light.

The Year Quantum Computers Learned to Fix Their Own Mistakes

For decades, quantum machines have been too error-prone to trust. In 2026 the fix that finally counts, error correction, starts shipping to paying customers.

AI Is Searching for Physics' Holy Grail

Plus the fusion gold rush: how smart money reframed fusion from a climate bet into an AI-infrastructure bet. One edition, two energy frontiers.

Robots Small Enough to Swim Your Bloodstream

Forget humanoids. The most radical robots of 2026 are specks that travel through your body under magnetic control, some of them partly alive, carrying a drug straight to its target.

Mirror Life: The Science We May Choose Not to Build

All life on Earth is one-handed. A few labs are learning to build the mirror image, and the scientists closest to the work are asking the world to stop before a mirror cell can copy itself.

The One Place AI Cannot Bluff Is Mathematics

AI has gone from failing at arithmetic to proposing new theorems and helping topple an 87-year-old conjecture, and because every proof can be checked to the last step, maths is the rare place a machine cannot bluff.

The Frontier Week Ahead: Six More Deep Dives, One a Day

One deep dive a day, Monday to Saturday, plus this week's featured article: Inside the Fusion Gold Rush.

NASA Is Building a Telescope the Size of a City Out of Six Shoeboxes

NASA's SunRISE flies six toaster-oven satellites in tight formation so they behave as one radio telescope kilometres wide, built to map where on the Sun the biggest particle storms are launched, the space weather that can threaten satellites, power grids and astronauts.

This Robot Learns Your Job by Watching You Do It

A Paris startup founded by a Tesla veteran says its lightweight humanoid, Northstar, can pick up new jobs by watching a person do them once, the long-sought shortcut that would let one robot learn many tasks without a coder, though for now it is only a prototype.

Is a Quantum Computer Designing Your Next Jet Engine? Sort Of.

Rolls-Royce, Quantinuum, Riverlane and Edinburgh's EPCC are running gas-turbine airflow simulations on the 98-qubit Helios quantum computer next to classical supercomputers, but no quantum advantage has been shown and the real payoff is years away.

Right Drug, Wrong Patient: The AI Out to End Cancer's Costliest Mistake

A model published in Nature Medicine reads a tumour's gene activity to predict who will benefit from immunotherapy, and it works across many cancers and drugs, not just one.

The Week Ahead: Six More Deep Dives, One a Day

Six deep dives, one a day, Monday to Saturday. Here is your first taste of each.

GPS Isn't About Maps. It's About Time, and That's the Problem.

Ask anyone what GPS is for and they will say maps. Its real job is telling the time, and it does that job for the power grid, the stock market and the mobile network. The signal is fainter than a distant lightbulb. The fix is quantum, and the clock is already running.

It's the Size of a Softball and Runs for 20 Years Without the Sun

City Labs' BOHR is the first commercially built nuclear-powered satellite ever launched. It is the size of a softball, makes less power than a wristwatch, and is not powering the spacecraft. The reasons it still matters have nothing to do with wattage.

They Broke a 165-Year-Old Law of Physics and Made Heat Programmable

An Osaka-led team broke Kirchhoff's law of thermal radiation, the 1860 rule that a surface must emit heat exactly as it absorbs it. Their surface steers warmth, switches on and off, and holds its setting with no power. Heat that behaves like memory.

One Free Download Now Drives 20 Different Robots

Ant Group open-sourced LingBot-VLA 2.0, a free model its makers say drives 20 different robot bodies on a single gaming graphics card. A day later NVIDIA and Hugging Face answered. The race to become the Android of robots is on, and nobody is charging.

A Chip That Writes DNA With Electricity and Water

A Harvard-led team turned a silicon chip into a DNA printer: 64 sequences written in parallel using electric currents and enzymes in water, replacing the solvent-heavy chemistry biology has relied on since the 1980s. The printing press moment for synthetic biology.

No Implant, No Surgery: The AI That Reads the Words You're About to Type

Meta's Brain2Qwerty reads the sentence you are typing straight from your brain activity, with no implant and no surgery, at 61% word accuracy. Inside the leap from 8%, the limits nobody puts in the headline, and the question it forces early.

The Frontier Week Ahead: Six More Deep Dives, One a Day

Mind-reading AI, a chip that writes DNA, one free download that drives 20 robots, and the signal holding up civilisation. Six deep dives, one a day, Monday to Saturday.

A Third of All Bitcoin Is a Sitting Duck for Quantum. Now Bitcoin Has to Choose.

A future quantum computer could one day crack the addresses holding a third of all Bitcoin, including Satoshi's. Inside BIP-360, the bolder BIP-361 freeze plan, and the impossible choice between frozen and stolen coins.

Who Owns Orbit? The ISS Is Retiring, and the Race to Replace It Just Went Private

The ISS is set for a deliberate, fiery end around 2030, and for the first time its replacement will not be a government lab but a privately owned station. Inside the Vast, Axiom and Starlab race, and why it matters even if you never leave Earth.