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For the first time, researchers see how proteins grab loops of DNA and bundle them for cell division. The discovery also hints at how the genome folds to regulate gene expression.
genomics

How Cells Pack Tangled DNA Into Neat Chromosomes

For the first time, researchers see how proteins grab loops of DNA and bundle them for cell division. The discovery also hints at how the genome folds to regulate gene expression.

The latest artificial intelligence systems start from zero knowledge of a game and grow to world-beating in a matter of hours. But researchers are struggling to apply these systems beyond the arcade.
artificial intelligence

Why Self-Taught Artificial Intelligence Has Trouble With the Real World

The latest artificial intelligence systems start from zero knowledge of a game and grow to world-beating in a matter of hours. But researchers are struggling to apply these systems beyond the arcade.

The theoretical physicist Joe Polchinski, who died Feb. 2, left a tremendous professional and personal legacy, says a friend and collaborator.
Quantized Columns

Physicists Mourn Joe Polchinski, Developer of Deep Ideas and Paradoxes

The theoretical physicist Joe Polchinski, who died Feb. 2, left a tremendous professional and personal legacy, says a friend and collaborator.

A new study challenges one of the most celebrated and controversial ideas in network science.
network science

Scant Evidence of Power Laws Found in Real-World Networks

A new study challenges one of the most celebrated and controversial ideas in network science.

New algorithms show how swarms of very simple robots can be made to work together as a group.
Computer Science

Smart Swarms Seek New Ways to Cooperate

New algorithms show how swarms of very simple robots can be made to work together as a group.

Two methods of measuring the neutron’s longevity give different answers, creating uncertainty in cosmological models. But no one has a clue what the problem is.
nuclear physics

Neutron Lifetime Puzzle Deepens, but No Dark Matter Seen

Two methods of measuring the neutron’s longevity give different answers, creating uncertainty in cosmological models. But no one has a clue what the problem is.

Modelers find evidence that a combination of competition, predation and evolution will push ecosystems toward species diversity anywhere in the universe.
Abstractions blog

Evolution Saves Species From ‘Kill the Winner’ Disasters

Modelers find evidence that a combination of competition, predation and evolution will push ecosystems toward species diversity anywhere in the universe.

When faced with a difficult decision, should you go with your gut or carefully calculate the attendant risks?
insights puzzle

When Probability Meets Real Life

When faced with a difficult decision, should you go with your gut or carefully calculate the attendant risks?

The mathematician Gil Kalai believes that quantum computers can’t possibly work, even in principle.
The Future of Quantum Computing

The Argument Against Quantum Computers

The mathematician Gil Kalai believes that quantum computers can’t possibly work, even in principle.