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 ...

With its origins tracing back to the 1970s, the Hubble Space Telescope was launched aboard the space shuttle Discovery on ...

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

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

The new data of Uranus' interior rotation rate has a level of accuracy 1,000 times greater than previous estimates.

In recent years, one of the most troubling puzzles in astrophysics has grown more urgent. Scientists have realized that the ...

Aurora lights on Uranus helped NASA’s Hubble Space Telescope measure the planet’s interior rotation rate, changing what astronomers know about how long a day is on the cold and windy world.