Hey, I am new to Mathematica; just got my copy a couple days ago. I have been trying the Astronomical Computation and Data routines using examples from the docs, but many of them don't return data. This is typical:

In: PlanetData["Properties"] Out: PlanetData["Properties"]

I've read that "PlanetData", etc., have replaced "AstronomicalData", but "AstronomicalData" returns real data. This happens with other routines, like "MineralData".

What am I missing?

Running version 10.1.0.0 on Macos 10.9.5.

Thanks for any help.