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Science 3 min read Sep 5

A Deep-Brain Signal Told Human Stem Cells to Make More Neurons

Researchers found that early physical contact from thalamic nerve fibers pushed human cortical stem cells to produce more excitatory neurons in laboratory assembloids. The effect depended partly on the gene NRXN1, offering a new view of brain development without showing how the process behaves in a living fetus.

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How Do Assembloids Model Communication Between Brain Regions?

Assembloids connect separately grown organoids to reveal migration, wiring and signaling between brain regions, while retaining the limits of a simplified laboratory model.

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How Do Courts Decide Whether to Pause a New Technology Law?

A preliminary injunction can pause a law before a constitutional lawsuit is finished, but obtaining one requires more than showing that the legal questions are serious.

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How Can a Genetically Modified Pig Kidney Work in a Human?

Pig kidneys are biologically similar to human kidneys, but immune incompatibility, clotting and infection risks prevent ordinary transplantation. Gene editing removes key barriers, adds protective human proteins and disables viral sequences, while powerful medicines and close monitoring remain essential.

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How Can a Driverless Car Operate Without Manual Controls?

A vehicle without a steering wheel must combine perception, planning, braking, fault detection and remote support so it can reach a safe state without passenger intervention.

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Three common lithium-ion battery cell formats: cylindrical, prismatic and pouch.

Technology History 7 milestones Ongoing

The Battery That Electrified Everything: From Lithium Chemistry to Electric Cars

Diagram showing how an mRNA vaccine instructs cells to produce an antigen and trigger immunity.

Technology History 8 milestones Ongoing

The mRNA Journey: From Fragile Molecule to Programmable Medicine

Honda's ASIMO humanoid robot performs for students and U.S. President Barack Obama at Miraikan in Tokyo.

Technology History 9 milestones Ongoing

The Long Road to Humanoid Robots: From Walking Machines to AI Workers

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Nvidia Is Buying Hugging Face for $12.93 Billion

Artificial Intelligence

Sep 4•3 min

Nvidia Is Buying Hugging Face for $12.93 Billion

Nvidia has agreed to acquire Hugging Face for $12.93 billion, gaining a central platform used to share millions of AI models, datasets and applications. Nvidia promises that competing chips, clouds and model makers will remain welcome, but the deal has not closed and that neutrality will need to be tested.

Hubble Found a Giant Ten-Sided Wave Around Saturn’s South Pole

Space

Sep 4•3 min

Hubble Found a Giant Ten-Sided Wave Around Saturn’s South Pole

Hubble observations have revealed a vast, evolving decagon embedded in a jet stream around Saturn’s south pole. The wave spans several atmospheric layers and may have formed recently, but scientists still do not know what triggered it or whether it will endure like the planet’s northern hexagon.