A new way to measure the length of Uranus’s day could also help determine the rotation rates of other celestial ...

Researchers from the University of Waterloo have proposed a new method to measure the Hubble constant that could help resolve ...

A new study reports the first direct observation of merging star clusters in the nuclear region of dwarf galaxies. This ...

A bright star within our Milky Way galaxy photobombed a beautiful new image of a distant galaxy with "patchy" spiral arms.

NASA and the European Space Agency (ESA) just released a stunning image of the NGC 346 star cluster from the Hubble Space ...

An international team of astronomers using the NASA/ESA Hubble Space Telescope have made new measurements of Uranus' interior ...

The beloved Hubble Space Telescope is reaching its 35th anniversary, and over the years it has taken some stunning images.

Glowing like a multi-faceted jewel, the planetary nebula IC 418 lies about 2000 light-years from Earth in the constellation ...

A day at Uranus just got a little longer. Scientists reported Monday that observations by the Hubble Space Telescope have ...

The cluster, full of more than 2,500 newborn stars that blaze blue in the Hubble image, is in a galaxy with far fewer heavy ...

A long-simmering disagreement over the universe’s present-day expansion rate shows no signs of resolution, leaving experts ...

An analysis of two decades of data from NASA's Hubble Space Telescope has provided fresh insights into the complex ...