點解冥王星叫「冥王星」(pluto)?因為似布魯圖(Pluto)囉 XD
that’s why it is called Pluto XD (but the dog or the “planet”? haha)
https://twitter.com/scottjohnson/status/620967387613917185/photo/1
引申延讀,包括點解我地要探索呢個唔再係行星(planet)既矮行星(dwarf planet):
https://phycat.wordpress.com/2015/07/15/冥王星和學問/
http://technews.tw/2015/07/15/our-closet-distance-with-pluto/