David Butler
David Butler runs the How Far Away Is It channel, a video book of Hubble and other space and ground-based imagery with scale explanations.
Space imagery with explanations of scale and distance, for those who like looking at the cosmos.
Fan casa
Mini Casa made this casa to celebrate David Butler. David Butler didn't make it and isn't affiliated with Mini Casa.
Science & Learning Down the lane, step next door either way.
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Where Rowan Chalkdust, the steady whiteboard walker lives