Radio astronomers use pulsar with strong magnetic field to investigate supermassive black hole.
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Hubble Space Telescope 2020 - eoPortal
Sagittarius A* - Wikipedia
Record-breaking X-ray flare from Milky Way's supermassive black
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Colliding galaxies, Martian moons and the black hole in the Milky
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Energy flash brighter than galaxy raced 8-billion-light-years to Earth
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Galaxies - News Articles
Milky Way Galaxy, ChandraBlog