Because science is awesome, and you need to follow them!
Its Full of Stars* (Different from the astronomy one)
Christopher J* (I just put you under geology because it’s mostly your blog but you seem to be interested in all sorts).
I feel I should reblog this and add my own 2 cents, I’ll put * next to them in case anyone is wondering what my recommendations are (although I recommend all the blogs on this list I know). I also probably forgot a lot. I also strongly suggest Mission to Mars.