Planetarium Show "Is Pluto A Planet?"

March 04, 2022
08:15 PM - 09:15 PM
Arts and Sciences Campus Events Planetarium
UNK Planetarium - Bruner Hall

Dr. Adam Jensen, UNK Physics & Astronomy

At the time of its discovery in 1930, Pluto was considered the sought-after "Planet X," the ninth planet in the Solar System.  It remained that way until 2006 when the International Astronomical Union controversially voted on a new definition for "planet" that moved Pluto to the status of "dwarf planet."  The situation ignited the interest and passion of the public, many of whom rallied to Pluto's defense —how could the IAU demote poor, tiny Pluto?  But what objects have been considered planets throughout history?  Is the IAU's definition a good one?  What other objects like Pluto are out there?  These questions and more will be discussed, but please...check your nostalgia at the door!

Free tickets required for admission at

Adam Jensen