The system is believed to be traveling at least 1.2 million miles per hour (1.93 million kilometers per hour), according to a ...

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

A planetary alignment, or a "planet parade" according to the internet, will grace our night sky just after dusk, according to ...

Don't put your binoculars away just yet, the planet parade continues through February. Here's which planets will be visible ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

If you missed seeing the alignment of six planets in the sky in January, don't worry. Another one is coming up in February.

A planet parade is when several of our solar ... Mars, Jupiter, Saturn, Neptune and Uranus. The six planets are visible now, and will remain so until late February. Mars, Venus, Jupiter and ...

Astronomers from MIT, the University of Liège in Belgium, and other institutions have stumbled upon a truly bizarre planet—an ...

Each planet orbits the Sun at vastly different distances—Mercury sits about 36 million miles, while Neptune is at a stately 2.8 billion miles distant from our star. Yet here they are ...

Mercury joins the night sky to complete a seven-planet alignment just after sunset for the end of February. Saturn leaves our ...

In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its ...