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Biomechanical interactions, rather than neurons, control the movements of one of the simplest animals. The discovery offers a glimpse into how animal behavior worked before neurons evolved.

Dwarf galaxies weren’t supposed to have big black holes. Their surprise discovery has revealed clues about how the universe’s biggest black holes could have formed.

Physicists are reexamining a longstanding assumption: that big stuff consists of smaller stuff.

Researchers have mapped hundreds of semantic categories to the tiny bits of the cortex that represent them in our thoughts and perceptions. What they discovered might change our view of memory.

Two teams have shown how quantum approaches can solve problems faster than classical computers, bringing physics and computer science closer together.

Large blocks of genes conserved through hundreds of millions of years of evolution hint at how the first animal chromosomes came to be.

We might have a past faint sun to owe for life’s existence. This has consequences for the possibility of life outside Earth.

Studies that map the adaptive value of viral mutations hint at how the COVID-19 pandemic might progress next.

New studies reveal the ancient, shared genetic “grammar” underpinning the diverse evolution of fish fins and tetrapod limbs.