Gally is a wonderful thing.
Where else would you find cosplay of some great characters (Davros, Donna and Wilf amongst many others), discover how Doctor Who directors & camera crew do their stuff, learn whether Tosin & Pearl like a Saturday night in or out, be taught about the new space telescope, enjoy a cross over talk to see which Doctor Who worlds are physically possible exo-Planets from NASA scientists and see a Mars 2020 rover wheel?
And yes, in the bottom left picture, that is a real life Mars rover wheel they used in testing. How exciting is that?!