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Groundbreaking results show that neutron stars of different masses may have the same size — upending astrophysical models.

Hilbert’s 12th problem asked for novel analogues of the roots of unity, the building blocks for certain number systems. Now, over 100 years later, two mathematicians have produced them.

New work suggests that the radiolytic splitting of water supports giant subsurface ecosystems of life on Earth — and could do it elsewhere, too.

Supermassive black holes emit jets of white-hot plasma that stretch thousands of light-years across the cosmos. For the first time, researchers have identified what’s creating these jets.

A pair of mathematicians solved a legendary question about the proportion of vertices in a graph with an odd number of connections.

Studies of sleep are usually neurological. But some of nature’s simplest animals suggest that sleep evolved for metabolic reasons, long before brains even existed.

Advances in brain-computer interface technology are impressive, but we’re not close to anything resembling mind control.

A mathematical shortcut for analyzing black hole collisions works even in cases where it shouldn’t. As astronomers use it to search for new classes of hidden black holes, others wonder: Why?

Transcription factors that act throughout the genome can arise from mashups of transposable elements inserted into established genes.