In recent years, one of the most troubling puzzles in astrophysics has grown more urgent. Scientists have realized that the universe seems to be expanding faster than expected, throwing a wrench into ...

Earth and its parent galaxy are living in a cosmic desert — a region of space largely devoid of other galaxies, stars and planets, according to a new study. The findings confirm the results of a ...

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AUSTIN, Texas -- Cosmologically speaking, the Milky Way and its immediate neighborhood are in the boondocks. In a 2013 observational study, Ryan Keenan, a postdoctoral researcher at Academia Sinica in ...

Astronomers have known for a century that the universe is expanding. We can now trace this expansion over much of its almost 14 billion year history, with important constraints going back to just one ...