The head of NASA says maybe Pluto is a planet after all. He is wrong because Pluto is part of the rest of the solar system ...

Two decades ago, the International Astronomical Union—which defines and names celestial bodies—redefined the criteria for being a planet, putting Pluto into the new category of dwarf planet ...

NASA Administrator Jared Isaacman wants to put an end to a decades-long debate among scientists. Is Pluto a planet or not? Isaacman says it should be — but it hasn’t been one for 20 years. That’s ...

Current NASA head Jared Isaacman, himself something of a controversial choice, is determined to get Pluto reclassified as a ...

It's been 20 years since Pluto was declassified as the ninth planet in our solar system, and many people wish it had never lost its status. A recent comment from NASA Administrator Jared Isaacman ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. NASA Administrator Jared Isaacman testifies during a House budget hearing at the Rayburn ...

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 ...

NASA chief Jared Isaacman said at a US Senate hearing that he supports restoring Pluto's status as a planet after a controversial 2006 demotion.

While most of my columns over the more than 20 years that I have written them for the Kitsap Sun have dealt with serious issues -- wars, addictions, family struggles -- sometimes a lighter issue ...

Last week NASA Administrator Jared Isaacman appeared before the U.S. Senate Appropriations Committee to answer questions about the space agency. When Senator Jerry Moran of Kansas asked Isaacman about ...