Astronomers have mapped the most extensive atlas of our Milky Way galaxy yet, including the positions of nearly 2 billion stars. The European Space Agency's Gaia observatory also tracked the first visible measurement of the acceleration of our solar system.
원문출처 : https://www.cnn.com/2020/12/03/world/milky-way-stars-gaia-scn-trnd/index.html
원문출처 : https://www.cnn.com/2020/12/03/world/milky-way-stars-gaia-scn-trnd/index.html