This once-in-a-generation shift is a pivotal power play in a saga that will unfold in the years and decades to come.

You probably know about the buildings or train station named for President Biden, but he's also the namesake for a dwarf ...

A powerful new tool comes online this year that could help astronomers locate the mysterious planet hiding somewhere beyond ...

As the gatekeepers to the Kuiper Belt, Charon and Pluto are a unique double dwarf planet system. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

Eris was discovered. It was considered the largest known dwarf planet in the solar system until a year later when Pluto was downgraded from being a planet.

Skywatchers: A six-planet alignment peaks this week as Mars, Jupiter, Uranus, Neptune, Venus, and Saturn come together for ...

Planet X, also called Planet Nine, is a hypothetical planetary body seven times the mass of Earth lurking behind Pluto. If ...

A six-planet alignment or parade will form an arc in the early night sky, peaking in it's visibility Jan. 17-18. We let you ...

While a street or a building may be commonplace, our Joe has been heralded with everything from an ice cream flavor to a miniature planet. Wikipedia actually has a page devoted to the topic ...