Access

News and Views

Nature 423, 697-699 (12 June 2003) | doi:10.1038/423697a

Astrophysics: Superficial resonance

Frits Paerels

Top

Neutron stars are the most poorly understood stellar objects in the Universe. But observations of X-rays emitted from one neutron star have now revealed a clue to the nature of its surface and composition.

Neutron stars are the remnants of massive stars. The density of their cores exceeds that of atomic nuclei, and they might contain exotic states of matter that are not found anywhere else in nature1.