#2 On the left: fossilised footprints made by a pair of hominids, 3.6 million (yes, million!) years ago at Laetoli in Tanzania. Centre: the bootprints of Neil Armstrong and Buzz Aldrin left around the lunar module “Eagle” at the Sea of Tranquility in 1969 during the Apollo 11 mission. And on the right: Oppy’s wheel tracks, left on the dusty surface of Mars in Novmber 2010. Just take a moment to think about the gulf of time that spans that trio of images. Take a moment to ponder just how far we’ve come. And ask yourself how far we will have travelled in another hundred years… in a thousand years… in another 3.6 million years…
