This material causes Titania and Oberon to have darker and redder leading hemispheres. These outer moons effectively shield ...

Hubble Space Telescope observations of white dwarf star G238-44 has shown that it is "consuming both rocky-metallic and icy ...

The Hubble Space Telescope's evidence of an "intermediate-sized" black hole about 6000 light-years away in the closest ...

The moons that orbit Uranus are already known to have unusual characteristics: some are heavily cratered, others have ...

Scientists using NASA's Hubble Space Telescope went looking for evidence of one phenomenon and found quite another.

NASA scientists found evidence of darkness on the 'leading side' of Uranus' moons, which they expected to be bright.

Yet Hubble's discovery was controversial. Perceived wisdom had been that planets could not have formed so early in the 13.7-billion-year history of the universe because there hadn't been enough ...

New Hubble observations reveal unexpected darkening on Uranus’ moons, challenging long-held assumptions about its ...

Scientists using NASA’s Hubble Space Telescope set out to study how Uranus’s magnetic field interacts with its largest ...