Having recently taken over responsibility for a group of astronomers at work, I'm a bit more attuned to celestial nuggets of information. So to find that Mercury has shrunk a bit, well not just a bit but to the tune of 1.5km over its 'history' (whatever that may be) was of interest. That would certainly put your reference frame realisations into a bit of a spin wouldn't it?
Talking with my new team makes me realise how local I am. I thought the fact that I deal with global data gave me a wider outlook than, say, my Ordnance Survey colleagues who 'only' do the UK. However dealing with astronomers who are into quasars and the celestial sphere makes me feel terribly parochial!