An all-sky X-ray map created by NICER (Neutron star Interior Composition Explorer) aboard the International Space Station. Bright arcs and loops trace NICER's movements as it tracks pulsars, spinning neutron stars emitting precise X-ray pulses. The celestial equator runs horizontally.

Astronomy Picture from 01/06/2019

NICER at Night

Source: https://apod.nasa.gov/apod/ap190601.html


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