Our Solar System is home to many unique planetary bodies, including protoplanets and dwarf planets. Here are the unique ...

The solar system lost its ninth planet back when Pluto was demoted to a dwarf planet, but research might indicate that there ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. A composite image comparing the relative sizes of our solar system's known dwarf planets, ...

For years, astronomers believed that Makemake, one of the brightest icy bodies beyond Neptune, was a frozen relic of the outer solar system. New observations from NASA’s James Webb Space Telescope ...

From the scorching surface of Mercury to the icy edges of Neptune, our planetary neighborhood is full of wonders. The order of the planets isn't just trivia—it tells a story about temperature, ...

The small world was found during a search for the hypothetical Planet Nine, and astronomers say the next time it will reach its closest point to the sun is in the year 26186. By Kenneth Chang Kenneth ...

Though no direct evidence of life has been found, models suggest Ceres had hot water shooting into its underground oceans ...

WASHINGTON (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 it as it ...