OK I have others registered, but these are my favourites (most of which are for sale in $$ range)
simulate.science
ETF.scence
fMRI.scence (functional MRI)
ECG.science
CRISPR.science (named 2015 science breakthrough of year)
LHC.science
femto.science
NRC.science
CanDo.science
symphony.science
Would love to hear what others have!
I know a lot of one year registrations have now disappeared, but what have people held onto or scooped up recently?