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In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...

New research from the SAGA Survey, comparing the Milky Way with 101 similar galaxies, unveils how our galaxy differs ...

Predictions are uncertain, but the solar system may be pushed farther from the galactic core or even ejected entirely from the new galaxy.

Quipu, Hercules, Serpens–Corona Borealis and Sculptor–Pegasus are all larger than the fifth and final superstructure ...

While radio jets are relatively common in the nearby Universe, they have been elusive in the early Universe. This is partly ...

In a nutshell A rare cosmic alignment has given astronomers an unprecedented view of two galaxies from 7 billion years ago, ...

The image of supermassive black hole Sagittarius A * was created using data from the Event Horizon Telescope Collaboration. At the same time several telescopes, including the Chandra X-ray Observatory ...

One of the great pop singles of 2011, Lady Gaga’s liberating ‘Born This Way’ single cemented her icon status. There are a handful of special moments on Born This Way, from the ...

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