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Milky Way

1963
 Astronomer Gail Smith discovered a strange intergalactic gas cloud near the Milky Way. It became known as Smith’s cloud. In 20 million to 40 million years the cloud will smash into the outer part of the Milky Way.
Links: Astronomy, Milky Way     Click to see the source(s) for this event 
 
1974
 A large radio-wave emitting structure was discovered in the galactic center of the Milky Way, a region called the Sagittarius A complex. At its center sits a massive black hole, Sagittarius A*, that controls the motions of the stars in the innermost parsec of the Galaxy.
Links: Astronomy, Milky Way     Click to see the source(s) for this event 
 
2009 Mar 6
 NASA's planet-hunting telescope, Kepler, rocketed into space on a historic voyage to track down other Earths in a faraway patch of the Milky Way galaxy. The $600 million satellite experienced a communication failure in 2013. It continued limited operations until 2018.
Links: NASA, Milky Way     Click to see the source(s) for this event 
 
2011 Feb 19
 Researchers estimated that at least 50 billion planets exist in the Milky Way.
Links: Planet, Milky Way     Click to see the source(s) for this event 
 
2013 Nov 4
 Astronomers at NASA’s Ames research center said the Milky Way may have 11 billion Earth-like planets based on data from the Kepler spacecraft, now crippled and no longer providing new data.
Links: NASA, Milky Way     Click to see the source(s) for this event 
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2018 Apr 25
 An eagerly-anticipated catalogue was published compiled from data that Europe's Gaia satellite gathered on some 1.7 billion stars from its unique vantage point in space, about 1.5 million km (930,000 miles) from Earth. The Gaia satellite produced a 3-D map, hailed as revolutionary, of more than a billion stars in our Milky Way galaxy.
Links: EU, Milky Way     Click to see the source(s) for this event 
 
2021 Jun 30
 Scientists said a newly discovered white dwarf, named ZTF J1901+1458, is 35% more massive than our sun yet boasts a petite diameter only a bit larger than Earth's moon. Two stars separately evolved into white dwarfs at the end of their life cycles, then spiraled toward one another and merged into a single entity. It is located relatively nearby in our Milky Way galaxy, about 130 light years from Earth.
Links: Milky Way     Click to see the source(s) for this event 
 
2022 May 12
 Astronomers announced today that they have captured the first picture of a supermassive black hole at the center of the Milky Way, a trapdoor in space-time through which the equivalent of 4 million suns have been dispatched to eternity, leaving behind only their gravity and a violently bent space-time.
Links: Astronomy, Milky Way     Click to see the source(s) for this event 
 
2022 Jun 13
 The European Space Agency released a trove of data on almost 2 billion stars in the Milky Way, collected by its Gaia mission in an effort to create the most accurate and complete map of our galaxy.
Links: EU, Milky Way     Click to see the source(s) for this event 
 
2022 Jul 5
 It was reported that researchers at the Univ. of Cologne and Masaryk Univ. in Brno (Czech Republic) have discovered the fastest known star, which travels around a black hole in record time. The star, S4716, orbits Sagittarius A*, the black hole in the center of our Milky Way, in four years and reaches a speed of around 8,000 kilometers per second.
Links: Germany, Czech Rep., Milky Way     Click to see the source(s) for this event 
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