The small world was found during a search for the hypothetical Planet Nine, and astronomers say the next time it will reach ...

Earth has a new neighbor that lives far, far away. Scientists from the Institute for Advanced Study's School of Natural ...

As it orbits the sun once every 25,000 years, the celestial body 2017 OF201 travels beyond the Kuiper Belt into a region ...

NASA's Perseverance rover is exploring a new Mars region called Krokodillen, which is thought to harbor some of the oldest and most intriguing rocks on the Red Planet.

It's an evocative idea that has long bedeviled scientists: a huge and mysterious planet is lurking in the darkness at the ...

For the past decade, scientists have been trying to get to the bottom of what seemed like a major inconsistency in the ...

Scientists are intrigued after spotting a highly unusual celestial object lurking at the very edge of our solar system.

There’s a new object in the distant reaches of our solar system, and it might just offer clues to a long-standing cosmic ...

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

Yugo is making a valiant return! This is our first tangible look at the all-new, value-focused supermini that’s being created from the ground up: a scale model of the new car at Car Design Event ...

In real life, the sun and Pluto are nearly 4 billion miles ... of the Three Rivers HomeLink program, is building a scale model of the solar system and positioning it along the Columbia River ...

Some experts remain unconvinced about this discovery. It’s been almost two decades since our solar system lost its 9th planet. Pluto was officially reclassified from a planet to a dwarf planet ...