Astronomers find evidence of a possible ninth planet beyond Neptune, reigniting the debate about the formation of the Solar ...

Here's what it's like to fly with elite perks and how you can earn status on United Airlines. Many or all of the products on this page are from partners who compensate us when you click to or take ...

Pluto Fire initially started 2:20 p.m. May 24 in Siskiyou County. Since its discovery 15 hours ago, it has burned 12 acres.

For decades, our solar system was thought to have nine planets, with Pluto considered the smallest and farthest. But in 2006, ...

Learn about the recently discovered trans-Neptunian object that may eventually join Pluto as a dwarf planet, found at the ...

In 2006, the International Astronomical Union stopped classifying Pluto as our solar system’s ninth planet and demoted its ...

One Pluto year equals 248 Earth years. At 1473 miles in diameter—about half the width of the United States—Pluto is the ...

From epic shonen adventures to magical girl sagas and psychological thrillers, there’s something for every taste. Dive in and ...

The Cleveland Cavaliers are getting plenty of unanswered questions from fans. After an incredible high that saw them finish ...