The perception of Neptune as much darker and bluer than Uranus was "cemented" when pictures were sent back by the Voyager 2 probe after it flew by the two planets in 1986 and 1989, said The Times.

NASA’s Voyager mission completed humankind’s first close-up exploration of the four giant outer planets of our solar system.

Beautiful photos of the six planets aligned in the night sky have emerged online. Mars, Jupiter, Uranus, Neptune, Venus and ...

Stargazers will be treated to a dazzling six-planet "alignment" this January.

Six planets are parading across the sky, appearing as some of the night's brightest stars. A few easy tips can help you ...

Six of our cosmic neighbors are expected to line up across the night sky tonight, in what has been dubbed a "planetary parade ...

Six planets - Venus, Mars, Jupiter, Saturn, Uranus and Neptune - were spotted in the night skies over Italy in a planetary ...

Hubble Space Telescope imagery Neptune has revealed that the planet's clouds are disappearing. Credit: NASA Goddard Space Flight Center ...

While the Hubble Space Telescope might be most famous for its images of beautiful and far ... The planets Jupiter, Saturn, Uranus, and Neptune are different in many ways from Earth, as they ...

Starting at 12:30 p.m. ET (1730 GMT) on Saturday (Jan. 25), astrophysicist Gianluca Masi of the Virtual Telescope Project ...

Though such alignments aren't unheard of, this particular formation was special due to the sheer number of planets visible ...