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

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

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

Today is a time for reflection and preparation as you align with your professional goals and priorities. Find daily ...

An amateur astronomer discovered Pluto 95 years ago today. The former planet will complete an orbit in another 153 years.

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

Whether Pluto is officially a planet is the least interesting thing about the runt of the solar system, astronomers will tell you 95 years after the discovery of the fascinating and sometimes ...

Two planets stand side by side as the evening twilight continues to delight and colorful stars shine in the sky this week.

From that day forward, astronomers have officially classified Pluto as a “dwarf planet,” one of several ... Pluto is just two-thirds as big as Earth’s Moon and not much larger than other ...

The phenomenon of a Full Moon arises when our planet, Earth, is precisely sandwiched between the Sun and the Moon. This alignment ensures the entire side of the Moon that faces us gleams under ...

On February 18, 2007, the Samjhauta Express train carrying hundreds of Indians and Pakistanis across the border was bombed by ...

And one of those moons, known as Charon, is half the size of Pluto itself. But that’s not the only thing that’s unusual about the relationship between Pluto and its largest moon. In fact, according to ...