At the beginning of the game I went to earth, but it is not possible to scan the planet... I am able to enter the scan dialog, but cannot select "autoscan", "dispatch" etc... only "exit menu". Same problem with Uranus.
Gas giants such as Uranus have no surface to land upon, so scanning them is pointless.
Similarly, Earth is encased in a slave shield, which your lander cannot penetrate, and arguably, neither can your scanners.
This behaviour is not a bug, but what is odd is that none of this is mentioned in the f**king manual. Suggestions for appropriate text are most welcome, I'm sure.
Logged
"I’m not a robot like you. I don’t like having disks crammed into me… unless they’re Oreos, and then only in the mouth." --Fry