Giant bubbles of gas that erupted from the core of the Milky Way galaxy millions of years ago are expanding out into space at mind-blowing speeds, according to new observations that may help reveal how the strange balloon-like lobes formed.
20 years ago, the Hubble Space Telescope showed the world what has become one of the most famous images of our time -- here it is again, in glorious high-definition.
Congress unexpected adds more money to Obama's NASA budget, much of it earmarked for a journey to Europa.
A tiny galaxy has been discovered in the Milky Way's backyard and astronomers are now wondering just how many of these diminutive dwarfs are hiding in the intergalactic undergrowth.
Every year, the Hubble Space Telescope seems to revolutionize our understanding of our vast and beautiful universe. 2014 was no different.
Just in time for the festive period, the Hubble Space Telescope has released a dazzling image of a globular star cluster filled with stellar glitter.
The photos capture Mars passing below two objects known as the Lagoon and Trifid nebulas, both in the constellation Sagittarius.
A strange flow of charged hydrogen atoms around an exoplanet turns out to be stellar winds from its parent star.
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