Multiple Reality

From where I am sitting now, I can see:

objects in the room;

open books by Poul Anderson and Stieg Larsson that I am currently rereading;

the street and the sky through the window;

this computer screen;

a TV screen showing a Brian Cox program about discoveries made by probes to Mercury, Venus and Mars.

It is thought that Mercury was formed near the orbit of Mars but that something moved it closer to the Sun. Apparently, Venus was an oceanic planet before its greenhouse effect took over. Now it is hotter than Mercury. Poul Anderson, while alive, would have watched such a program to update his background knowledge. Can an sf writer keep a series consistent throughout his career despite changing scientific information? Ingenuity can save the appearances to a certain extent.