Why is it, Targ, that when I rant about Pluto, I get, "But Pluto is still there", or "big deal"; yet, when I claim I'm not a Homo sapiens, people want further clarification?
Because it's nothing more than a squabble over nomenclature. It's not like they suddenly realised that Pluto orbited another star or that Pluto was actually a speck of dust on the lens of the telescope or anything major like that.
A century or so ago, there were not as many geological time periods as there are now. Initially, a period may have covered 150 million years, but later it may have been subdivided into three periods of 50 million years each. Why was this? Were they originally wrong to give it such a broad time range? No. The division is simply a helpful way of identifying more precise periods of time. Likewise, the term planet was becoming overused and therefore unhelpful. It covered objects as massively diverse as Jupiter and Pluto. So to make the name more useful, they decided it would be better to label it as a dwarf planet. What's changed? Not a lot - just the name. And as Naraoia says, Pluto and Charon continue their waltz around the Sun, hand in hand for many eons to come. But then you know this, because it's been explained to you a ridiculous number of times.
Upvote
0