One large Milky Way galaxy or many galaxies? 100 years ago, Edwin Hubble settled astronomy's 'Great Debate'
A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...
ESA’s Gaia Spacecraft Wraps Up Revolutionary Milky Way Mapping Mission
ESA’s decade-long Milky Way Gaia mapping mission still has tons of data to release over the next few years. Expect surprises.
Mapping 2 billion stars: How Gaia transformed our view of the Milky Way
Gaia was launched on December 19, 2013, and began scanning the stars in July 2014. It mapped over two billion stars, ...
Unexpected Findings: Scientists Reveal the Milky Way Is a Cosmic Outlier
Recent studies challenge the long-held belief that the Milky Way is a standard model for understanding galaxy formation, ...
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NASA releases jaw-dropping 2.5 billion pixel image that took 10 years to capture
The Hubble Space Telescope has used its sensitive instruments to create a mosaic image containing 2.5 billion of the Milky Way's closest neighbor.