On 25 April, @ESAGaia will publish its much awaited 2nd data release, including high-precision measurements of nearly 1.7 billion stars in our Galaxy.
🎥 Here's why astronomers around the world are #WaitingForGaia #GaiaDR2 https://t.co/YHV7ZMWgGK

— ESA (@esa) April 21, 2018