These great hollow globes of artificial super-metals, and artificial transparent adamant, ranged in size from the earliest and smallest structures, which were no bigger than a very small asteroid, to spheres considerably larger than the Earth. (Olaf Stapledon, STAR MAKER)
Monday, June 26, 2017
Artist Conception
What might the surface of TRAPPIST-1f look like? Today's Astronomy Picture of the Day brings us one possibility.
No comments:
Post a Comment