NASA has paused operations of the Neutron Star Interior Composition Explorer (NICER) aboard the International Space Station ...

NASA reveals that a particle wind powers pulsar J1023, aligning optical and X-ray polarization, which calls existing models ...

NASA's NICER telescope halts its mission after a key motor fails; engineers attempt to salvage eight years of space science.

XRISM’s observations of GX13+1 revealed a slow, fog-like wind instead of the expected high-speed blast, challenging existing models of radiation-driven outflows. The discovery hints that temperature ...

As the collapsed core of a massive star, a neutron star is a small but incredibly dense object, packing up to three times the mass of our sun into a small volume. Models predict that neutron stars are ...