In the heart of our Milky Way galaxy, two gigantic "bubbles" extend roughly 50,000 light-years above and below the galactic ...

In the 1920s, astronomers thought that the Milky Way was the entire universe. Hubble's discovery revealed a much bigger ...

Giant radio galaxies (GRGs) are massive, with plasma jets powered by supermassive black holes at their centers, stretching ...

Conflicting distance measurements have added to the uncertainty. One data source places one object at 6,500 light years away, ...

Astronomers from Turkey and Japan have performed optical observations of a recently discovered nearby supernova remnant known ...

The future of galaxies remains one of the most interesting topics for experts. In fact, they will not survive the passage of ...

ESA’s decade-long Milky Way Gaia mapping mission still has tons of data to release over the next few years. Expect surprises.

The record-breaking winds are circling the nearby "puffy" exoplanet WASP-127b, and are traveling six times faster than the ...

Gaia was launched on December 19, 2013, and began scanning the stars in July 2014. It mapped over two billion stars, ...

The plasma jets of this cosmic giant span 3.3 million light-years from end to end – over 32 times the size of the Milky Way.

Astronomers discover Inkathazo, a massive giant radio galaxy spanning 3 million light-years, using South Africa's MeerKAT ...

His measurements marked the end of the Great Debate about the Milky Way's size and the nature of the nebulae. Hubble wrote ...