On the 95th anniversary of its discovery, Pluto remains one of the most beloved and enigmatic worlds in our solar system, ...

Pluto may not be a planet any more, but you still have a chance to see the distant dwarf planet at one of Michigan's ...

Feb. 18 marks the 95th anniversary of the discovery of our outermost planet-not-planet. Here's what to know about the short ...

“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto ...

Pluto was once the ninth planet of our solar system, until scientists reclassified it in 2006, sparking outrage and debate.

Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary status.

Saturn, Venus, Neptune, Uranus, Jupiter, Mars and Mercury will be visible in an uncommon planetary alignment this month.

February 18th has been a significant date throughout history, marking a variety of events that have shaped the world. In a ...

World Wine Tasting Day, which is celebrated every year on February 18, is a great opportunity for all wine lovers to enjoy ...

The annual event celebrates the discovery of the little planet with a big heart and other scientific advances at Flagstaff, ...

Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar system was the only planetary system known to humans. We had no proof other ...