PARIS, June 13 — The Gaia space probe unveiled its latest discoveries today in its quest to map the Milky Way in unprecedented detail, surveying nearly two million stars and revealing mysterious “starquakes” which sweep across the fiery giants like vast tsunamis.
Some of the map’s new insights are close to home, such as a catalogue of more than 156,000 asteroids in our Solar System “whose orbits the instrument has calculated with incomparable precision,” Mignard said. This handout image released by the European Space Agency on June 13, 2022, shows a map of the Milky Way made with new data collected by the ESA space probe Gaia, ‘radial velocity’, the speed at which more than 30 million objects in the Milky Way move towards or away from us. — European Space Agency/AFP pic“Gaia scans the sky and picks up everything it sees,” said astronomer Misha Haywood of the Paris Observatory.
It also has a range of other instruments that allow it to not just map the stars, but measure their movements, chemical compositions and ages. “It also clearly shows that our Sun, and we, all belong to an ever-changing system, formed thanks to the assembly of stars and gas of different origins.” The second dataset in 2018 allowed astronomers to show that the Milky Way merged with another galaxy in a violent collision around 10 billion years ago.
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