"As fascinating as the galaxy appears at visible wavelengths, some of NGC 5643's most interesting features are invisible to ...

NASA and ESA’s Hubble Space Telescope has been observing the outer planets through a program called OPAL (Outer Planet ...

Astronomers have long understood that the universe is expanding—in other words, the space in between cosmic objects that aren ...

Over the last ten years, OPAL has observed Uranus' northern hemisphere, which has faced the inner solar system for the ...

The rate of expansion of the universe today is a figure known as the Hubble constant, which is typically measured in units of ...

This NASA/ESA Hubble Space Telescope image features the glorious spiral galaxy NGC 5643, which is located roughly 40 million ...

Once described as the most important telescope in history after the original built by Galileo, the Hubble Space Telescope has ...

The Hubble Space Telescope has peered deeper than ever before into the heart of the supermassive black hole-powered quasar 3C ...

New Hubble Space Telescope images of a black hole-powered quasar reveal 'weird' structures and gigantic jets of energy that ...

Now, to the dismay of researchers, a new study designed to double-check the calculated rate of the universe's expansion – ...

The telescope has offered an unprecedented view of a supermassive black hole at the center of a quasar as it munches material in space.

Butterfly Nebula (NGC 6302): Hubble was recently retrained on NGC 6302, known as the "Butterfly Nebula," to observe it across ...