Blue Pulsar

Pulsar - NASA
The blue dot is pulsar PSR J1640-4631 from the inner Milky Way galaxy

NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) was able to discover this pulsar (PSR J1640-4631) by picking up the rotating beam of X-rays that were originating from its blue center. This pulsar lies in our inner Milky Way galaxy about 42,000 light-years away and its X-rays intersect Earth every 0.2 seconds. While the blue dot in this image marks the spot of this high energy pulsar (3 to 79 kiloelectron volts), the pink dots in this picture show low-energy X-rays (0.5 to 10 kiloeletron volts) detected by NASA’s Chandra X-ray Observatory.

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