NASA's administrator wants to reclassify Pluto as a planet, reigniting a 20-year controversy over its status in our solar ...

A new formation theory for Pluto's moon Charon could explain why Pluto is geologically active. Illustration incorporates NASA New Horizons terrain imagery. Pluto — demoted to dwarf planets status in ...

Add Yahoo as a preferred source to see more of our stories on Google. Guests visting the Lowell Observatory in Flagstaff, Arizona during the I Heart Pluto Festival gaze at celestial objects from the ...

Pluto TV will celebrate to 10 years of free TV streaming by going back to its Pluto planet roots. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

NASA chief Jared Issacman appears to be among those who support Pluto being reclassified as a planet. Could President Trump ...

For no explainable practical reason, humans are enamored with – and even empathetic toward – specific inanimate objects. Our first car. A choice coffee mug. And for a particular subset of the ...