Two decades ago, Pluto was reclassified as a dwarf planet, sparking an enduring debate. NASA Administrator Jared Isaacman says he wants to “make Pluto a planet again.” ...

Today (September 23rd) is the day Neptune was discovered. While multiple scientists and astronomers were calculating the size ...

Twenty years after Pluto became a dwarf planet, people are still fighting over its status. Experts explain why the debate feels so personal.

Pluto’s atmosphere may finally be thinning as it moves farther from the sun, with observations suggesting atmospheric pressure has fallen by as much as 16%.

Is Pluto a planet, as generations of schoolchildren learned? Or is it really a dwarf planet, as astronomy’s official governing body has determined? NASA administrator Jim Bridenstine says it’s the ...

PASADENA, Calif. — Scientists may have spotted more than a half dozen clouds in Pluto's hazy atmosphere, researchers announced Tuesday. NASA's New Horizons spacecraft flew by Pluto in July 2015, ...

A view of the dwarf planet Pluto from the New Horizons spacecraft showcases the heart-shaped feature Sputnik Planitia. NASA Pluto may have been downgraded from a planet to a dwarf planet, but it ...

Die-hard Pluto fans still seeking redemption for their demoted planet have cause for despair this week. New data shows that the dwarf planet Eris is 27 percent more massive than Pluto, thereby ...

Add Futurism (opens in a new tab) More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. I think ...