This month, the International Astronomical Union (IAU) is going to have its 2009 general assembly. One topic that may come up for discussion is Pluto’s right to be called a planet. Which is really the topic of how to define a planet. And as we shall see below, although Pluto has been the driver for …
Tag Archives: planets
The Final Frontier
Every once in a while, space photography throws up an instant classic, and recently a couple of photos have turned up that deserve to join the many that have come before. Before I get to those two recent images, I’ll give you a quick tour of what I think are some of the most iconic …