The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Viewed in this longer context, the previously modern idea of having nine planets, which came about in the 1960s and lasted only until 2006, was a blip on the screen. And if you are still a Pluto ...

Growing up, I was taught that there were nine planets in the solar system. That all changed in 2006, when the International Astronomical Union voted to demote Pluto's status to that of dwarf planet.

In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its ...

Aside from the solar system once again having nine planets—which it had before Pluto’s demotion in 2006—the discovery of a distant Earth-mass planet would have profound implications for ...

Although Seeing in the Dark doesn't directly discuss Pluto, it does celebrate the joy of observing planets. Viewers who watch the show may wonder what happened to Pluto in 2006 and whether any of ...

Known as Planet Nine or Planet X, it is a hypothetical planet ... For more than 70 years, Pluto was classed as the ninth planet but that changed in 2006, when the International Astronomical ...

it has flown for nine and a half years to the outer edges of the solar system . . . SLIDESHOW: NASA’s New Horizons Mission . . . to Pluto, the now-demoted “dwarf planet” that lives beyond ...

Pluto in Aquarius 2025: read on to learn more about what the planet of death in the sign of the water bearer has in store for the collective this year. artefacti - stock.adobe.com Let’s talk ...

Charon is half the size of Pluto, “making it the largest known moon relative to its parent planet in our solar system,” NASA notes. So how did Pluto get its chonky companion? A new study ...