Neutron stars are some of the weirdest cosmic objects, and the greatest mysteries lie deep in their hearts.

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The cosmos has delivered a rare kind of fireworks display, and astronomers are racing to understand what it means. A strange double flash from a distant galaxy appears to show two neutron stars ...

Neutron stars are ultra-dense star remnants made up primarily of nucleons (i.e., protons and neutrons). Over the course of millions of years, these stars progressively cool down, radiating heat into ...

When young stars mix with neutron stars, things get messy.