Prepare to get schooled If you have kids in school, or even if you don’t, you’ve probably realized that there’s a lot about ...

"The data from the termination shock encounter will be a treasure trove for space physicists worldwide who are eager to ...

In February 2025, all seven of our planetary neighbors will be visible from Earth. So what does such a planetary alignment ...

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

The controversy endures over Pluto's true status, but the solar system underdog continues to capture hearts across the globe.

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.

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 ...

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 ...

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

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

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