Somewhere, eons past, the seekers had begun as weapons - cyborg war machines. Nuclear explosions and powerful lasers meant little to them, for each was larger than ten battleships and subsisted on a diet of heavy metals, preferably radioactive. Soon the seekers began their own Lifeburst, flying to nearby stars, evolving, eating, destroying...
Our solar system was next.
Jack Williamson (1908 - 2006)
John Stewart 'Jack' Williamson was born in Arizona in 1908 and raised in an isolated New Mexico farmstead. After the Second World War, he acquired degrees in English at the Eastern New Mexico University, joining the faculty there in 1960 and remaining affiliated with the school for the rest of his life. Williamson sold his first story at the age of 20 - the beginning of a long, productive and successful career, which started in the pulps, took in the Golden Age and extended right into his nineties. He was the second author, after Robert A. Heinlein, to be named a Grand Master of Science Fiction by SFWA, and by far the oldest recipient of the Hugo (2001, aged 93) and Nebula (2002, aged 94) awards. A significant voice in SF for over six decades, Jack Williamson is credited with inventing the terms 'terraforming' and 'genetic engineering'. He died in 2006.