We now have the most detailed catalogue of stars in our Milky Way galaxy yet. The new map -- created using data collected by the Gaia satellite -- shows about 1.7 billion stars, including many objects never seen before, according to the European Space Agency (ESA), which runs Gaia. Thousands of previously unseen black holes lurk near the center of our galaxy The catalogue represents almost two years of sky charting. “The observations collected by Gaia are redefining the foundations of astronomy,” Gรผnther Hasinger, ESA Director of Science, said in a statement. https://youtu.be/VINs-JcNmKs “Gaia is an ambitious mission that relies on a huge human collaboration to make sense of a large volume of highly complex data.” The new map of the sky builds on Gaia's first map, which was released in 2016 after about a year of observations. It came complete with 2 millions stars, according to the ESA. The 2018 map is quite an upgrade. “The s...