The materials that make up your body are intergalactic voyagers that have existed beyond the limits of the Milky Way. New research suggests that the carbon that serves as the building blocks of ...
By that metric, the ESA's Gaia mission is a resounding success. The spacecraft gave us a precise, 3D map of our Milky Way galaxy and has forced us to abandon old ideas and replace them with compelling ...
100 years ago, Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help. If we could go back 101 years, we would encounter a time when ...