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This time-lapse video, obtained June 8, 2018, shows the precise choreography of NASA's Neutron star Interior Composition Explorer (NICER) as it studies pulsars and other X-ray sources from its perch aboard the International Space Station. NICER observes and tracks numerous sources each day, ranging from the star closest to the sun, Proxima Centauri, to X-ray sources in other galaxies. Movement in the movie, which represents a little more than one 90-minute orbit, is sped up by 100 times.
One factor in NICER's gyrations is the motion of the space station's solar arrays, each of which extends 112 feet (34 meters). Long before the panels can encroach on NICER's field of view, the instrument pirouettes to aim its 56 X-ray telescopes at a new celestial target.
Movie - Station
As the movie opens, the station's...
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