Scientists have recently spotted a huge object far away in the cold outer reaches of our solar system. This ...

Scientists have discovered a colossal object approximately 435 miles wide in the frigid outer reaches of our solar system, ...

WASHINGTON: A group of scientists has found a strange new object about 435 miles wide at the far edge of the solar system. It ...

Possible New Dwarf Planet Spotted Near the Edge of the Solar ... Its size is estimated to be a bit smaller than Ceres, which is the smallest of the solar system's five recognized dwarf planets ...

Scientists have identified an object about 435 miles (700 km) wide inhabiting the frigid outer reaches of our solar system that might qualify as a ...

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

Here's what to know about the short life of what was, for a single human lifetime, the solar system's smallest planet ... to reclassify Pluto as a dwarf planet. The reasoning was that it didn ...

Feb. 18 marks the 95th anniversary of the discovery of our outermost planet-not-planet. Here's what to know about the short life of what was, for a single human lifetime, the solar system's smallest ...