My read of the day is Arkfall, by Carolyn Ives Gillman. This is a Nebula award nominee for 2009. It is a competent story, exploring themes of interdependence and its limits. The protagonist learns about these limits while caring for her increasingly debilitated aunt, who is afflicted with Alzheimer's syndrome.
It's a reasonably good story, with current scientific interest and social relevance. Just not too much of each. It just doesn't have a lot of flavor, particularly for an award nominee. It reminds me of far too many stories, most of the ones in my 2-star category, which this will join. So it goes.