13 Nov 2017
Life. It’s the one thing that, so far, makes Earth unique among the thousands of other planets we’ve discovered. Since the fall of 1997, NASA satellites have continuously and globally observed all plant life at the surface of the land and ocean. Earth is still the only planet we know of with life – with that in mind, our habitable home world seems evermore fragile and beautiful when considering the vastness of unlivable space.
Read more at NASA GMS