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 ...

By reconstructing stellar orbits using real Milky Way stars with accurately determined parameters, the team quantified the galaxy's mass-weighted chemical abundances and age structure. This ...

A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...

Observations show Andromeda has a more active star formation history than the Milky Way, potentially due to a past galactic collision. NASA recently released images of the Andromeda galaxy ...

Peering deep into the dusty heart of our Milky Way galaxy using infrared vision, NASA’s Hubble Space Telescope reveals a rich tapestry of more than half a million stars. The Milky Way Galaxy ...

Previously, scientists thought the entire universe existed within the Milky Way, per the NASA statement. But when Andromeda proved to be its very own galaxy, astronomers realized the universe was ...

A close-up view of a prodigious number of stars in the Andromeda galaxy. Credit ... about the structure and evolution of our own Milky Way," NASA said. "That's because we are embedded inside ...

NASA also said, 'Because the Andromeda Galaxy is a spiral galaxy like our own Milky Way, studying Andromeda can help us understand the structure and evolution of the Milky Way.' 'The Hubble Space ...

The most powerful telescope to be launched into space has made history by detecting a record number of new stars in a distant galaxy. NASA's James ... away from the Milky Way, according to a ...

NASA recently released ... survey of the Andromeda galaxy, or Messier 31. The Andromeda galaxy is approximately 2.5 million light-years away from the Milky Way. The observations recorded by ...

NASA recently released images of the Andromeda galaxy, an "enticing empire of stars" that can be seen with the naked eye if weather conditions are just right. About 100 years after astronomer Edwin ...