I’ll admit it, I am a sucker for year-end lists. If I’m reading one, it is a fun provocation for disagreement. If I’m writing one (like now), it is a welcome opportunity to separate the timeless from the ephemeral. Either way, such lists inspire an invigorating reconsideration of the events of the past 12 months–and for those who care about the human exploration of the universe, 2014 was a momentous year in many way.
Not all of the year’s developments were positive, of course, and not al