Debate has raged for two decades over whether Pluto should be considered a planet. Some want President Trump to take action ...

Discovered in 1930 at the Lowell Observatory, Pluto was demoted as a planet in 2006. Some want President Trump to take action via executive order.

NASA administrator Jared Isaacman just urged the president to 'make Pluto great again'—but Trump doesn't have the power to do ...

A long-settled space debate is back in the spotlight after fresh political backing in the United States. Calls to restore Pluto’s status are gaining attention from both scientists and public figures.

Pluto lost its planetary status in 2006. Nearly two decades later, people are still arguing about it — and now the argument has reached the White House. NASA Administrator Jared Isaacman told the ...

President Donald Trump and his NASA administrator are reviving the Pluto debate again — apparently at the urging of “Star ...

Arizona has a new state emblem — and it's one that has been a source of controversy among scientists for years. Gov. Katie Hobbs signed a bill on Friday designating Pluto — once considered the ninth ...

Add Yahoo as a preferred source to see more of our stories on Google. Earth has a newly-discovered neighbor in the solar system. But the heavenly body – possibly a dwarf planet à la Pluto – isn't a ...

After a tumultuous week of clashing over the essence of the cosmos, the International Astronomical Union stripped Pluto of the planetary status it has held since its discovery in 1930. The new ...

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Flagstaff, Arizona (CNN) — 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 ...

Earth has a newly-discovered neighbor in the solar system. But the heavenly body – possibly a dwarf planet à la Pluto – isn't a frequent visitor. Located beyond Neptune, its extreme orbit ...