On August 24, 2006, in Prague, members of the International Astronomical Union gathered for the final day of their General ...

Add Yahoo as a preferred source to see more of our stories on Google. NASA chief Jared Isaacman has doubled down on his stance that Pluto is without a doubt a planet. For two decades, controversy has ...

In 2006, a vote by the International Astronomical Union determined that Pluto was no longer a planet. The decision sparked a heated public debate, and many planetary scientists disagreed with kicking ...

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 ...

For decades, Pluto was celebrated as the ninth planet of our solar system. However, in 2006, the International Astronomical Union (IAU) redefined what constitutes a planet, leading to Pluto’s ...

Astronomers believe a massive, undiscovered planet could be hiding in the distant reaches of our solar system, far beyond ...

Pluto turns direct in Aquarius on. Learn what Pluto rules in astrology, what direct vs. retrograde means, and the key 2027 ...