Greenworld
A glimpse into the future of a colonised Mars
It used to be barren, dusty and as rust-red as the Nevada buttes.
Who can remember those early days? Not these children, tall, slender and healthy, as they scamper across grassy fields under a blue sky. The trees stretch higher than Earth trees. If anyone were to stop and stare upwards, far into the distance, they might be able to pick out faint thread-lines in…