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The object takes 25,000 years to orbit the sun. Earth has a new neighbor that lives far, far away. Scientists from the Institute for Advanced Study's School of Natural Sciences believe they have found ...

The newly discovered object, named 2017 OF201, has a 25,000-year orbit and is believed to be a large contender for dwarf planet classification. Scientists with the Institute for Advanced Study’s ...

WASHINGTON, May 30 (Reuters) - 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 dwarf planet, spotting ...

Scientists with the Institute for Advanced Study’s School of Natural Sciences say they have found a possible dwarf planet that they have dubbed an "extreme cousin" of Pluto. They say that the possible ...